UDC 62-135:534.1, 624.9 +519.6 Atta Oveisi, Tamara Nestorović
Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1...
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Transcript of Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1...
![Page 1: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/1.jpg)
Rounding
![Page 2: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/2.jpg)
Round to the nearest whole number
• 621.8• 19.02• 57.04• 98.63• 1.03• 610.8• 519.6
• 622• 19• 57• 99• 1• 611• 520
![Page 3: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/3.jpg)
Round to one decimal place
• 19.023• 57.046• 81.774• 89.522• 1.03• 2.59• 49.97
• 19.0• 57.0• 81.8• 89.5• 1.0• 2.6• 50.0
![Page 4: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/4.jpg)
Round to two decimal places
• 1.902• 5.704• 0.1036• 2.974• 0.006• 3.899• 0.003
• 1.90• 5.70• 0.10• 2.97• 0.01• 3.90• 0.00
![Page 5: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/5.jpg)
The reading 4.1 kg, has two significant figures.
![Page 6: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/6.jpg)
The width of the footpath is 1.81m (to the nearest cm)
![Page 7: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/7.jpg)
The width of the footpath is 1.81m (to the nearest cm)
How many significant figures?
![Page 8: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/8.jpg)
Complete this table
Rounded width Significant Figures
1.81
2
1
![Page 9: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/9.jpg)
Complete this table
Rounded width Significant Figures
1.81 3
1.8 2
2 1
![Page 10: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/10.jpg)
Round to one significant figure
• 7.56• 2.7• 4.6• 10.6
• 8• 3• 5• 10
![Page 11: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/11.jpg)
How many significant figures?
• 9.6• 2.5• 55.1• 1.26• 22.4• 178.3• 8.75• 3.24
• 2• 2• 3• 3• 3• 4• 3• 3
![Page 12: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/12.jpg)
How many significant figures?
• 46.81• 3.808• 4.077• 71.08• 83.881• 778.049
• 4• 4• 4• 4• 5• 6
![Page 13: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/13.jpg)
How many significant figures?
• 400.00• 40.0• 1.4• 1.40• 1.400• 10.0• 1.50• 100.00
• 5• 3• 2• 3• 4• 3• 3• 5
![Page 14: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/14.jpg)
• The length of this pencil is 83 mm to the nearest mm.
• 83 mm has been rounded to two significant figures.
• 83 mm = 0.083 m• 0.083 m also has two
significant figures.
![Page 15: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/15.jpg)
How many significant figures?
• 0.061• 0.007• 0.00061• 0.46• 0.070• 0.0700• 0.0074• 0.07006
• 2• 1• 2• 2• 2• 3• 2• 4
![Page 16: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/16.jpg)
Exercise 9
Rounding
![Page 17: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/17.jpg)
Round the lengths of N. Z. Rivers to the nearest 10 Km.
• Waikato• Clutha• Wanganui• Taieri• Rangitiki• Waitaki
• 425• 322• 290• 288• 241• 209
![Page 18: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/18.jpg)
Round the lengths of N. Z. Rivers to the nearest 10 Km.
• Waikato• Clutha• Wanganui• Taieri• Rangitiki• Waitaki
• 425 = 430• 322 = 320• 290 = 290• 288 = 290• 241 = 240• 209 = 210
![Page 19: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/19.jpg)
Round the heights of N. Z. Mountains to the nearest 100 m.
• Cook• Tasman• Ruapehu• Taranaki• Ngauruhoe• Tongariro
• 3764• 3498• 2797• 2518• 2291• 1968
![Page 20: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/20.jpg)
Round the heights of N. Z. Mountains to the nearest 100 m.
• Cook• Tasman• Ruapehu• Taranaki• Ngauruhoe• Tongariro
• 3764 = 3800• 3498 = 3500• 2797 = 2800• 2518 = 2500• 2291 = 2300• 1968 = 2000
![Page 21: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/21.jpg)
Round the areas of N. Z. Lakes to the nearest 1000 ha.
• Taupo• Te Anau• Wakatipu• Wanaka• Manapouri• Hawea
• 60 606• 34 447• 29 267• 19 166• 14 245• 11 914
![Page 22: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/22.jpg)
Round the areas of N. Z. Lakes to the nearest 1000 ha.
• Taupo• Te Anau• Wakatipu• Wanaka• Manapouri• Hawea
• 60 606 = 61 000• 34 447 = 34 000• 29 267 = 29 000• 19 166 = 19 000• 14 245 = 14 000• 11 914 = 12 000
![Page 23: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/23.jpg)
Round the areas of N. Z. Regions correct to 2 significant figures.
• Northland
• Auckland
• Waikato
• Bay of Plenty
• Gisborne
• Hawkes' Bay
• Taranaki
• Manawatu - Wanganui
• Wellington
• 13 941
• 5 600
• 25 598
• 12 447
• 8 351
• 14 164
• 7 273
• 22 215
• 8 124
![Page 24: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/24.jpg)
Round the areas of N. Z. Regions correct to 2 significant figures.
• Northland
• Auckland
• Waikato
• Bay of Plenty
• Gisborne
• Hawkes' Bay
• Taranaki
• Manawatu - Wanganui
• Wellington
• 13 941 = 14 000
• 5 600 = 5 600
• 25 598 = 26 000
• 12 447 = 12 000
• 8 351 = 8 400
• 14 164 = 14 000
• 7 273 = 7 300
• 22 215 = 22 000
• 8 124 = 8 100
![Page 25: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/25.jpg)
Round the population of N. Z. Regions correct to 3 significant figures.
• Nelson• Tasman• Marlborough• West Coast• Canterbury• Otago• Southland• New Zealand
• 40 279• 37 973• 38 397• 32 512• 468 040• 185 083• 97 100• 3 618 302
![Page 26: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/26.jpg)
Round the population of N. Z. Regions correct to 3 significant figures.
• Nelson• Tasman• Marlborough• West Coast• Canterbury• Otago• Southland• New Zealand
• 40 279 = 40 300• 37 973 = 38 000• 38 397 = 38 400• 32 512 = 32 500• 468 040 = 468 000• 185 083 = 185 000• 97 100 = 97 100• 3 618 302 = 3 620 000
![Page 27: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/27.jpg)
This table shows the population of Auckland's 4 cities rounded to the nearest 1000.
Copy down and complete the table.
City Population Min. Pop Max. Pop
North Shore 172 000 171 500 172 499
Waitakere 156 000
Auckland 346 000
Manukau 254 000
![Page 28: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/28.jpg)
This table shows the population of Auckland's 4 cities rounded to the nearest 1000.
Copy down and complete the table.
City Population Min. Pop Max. Pop
North Shore 172 000 171 500 172 499
Waitakere 156 000 155 500 156 499
Auckland 346 000 345 500 346 499
Manukau 254 000 253 500 254 499
![Page 29: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/29.jpg)
Exercise 10
Approximate Calculations
![Page 30: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/30.jpg)
Oral examples - 1
• a. 90 x 6• b. 90 x 60• c. 900 x 60• d. 900 x 600
• 540• 5400• 54 000• 540 000
![Page 31: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/31.jpg)
Oral examples - 2
• a. 80 x 5 • b. 80 x 50 • c. 800 x 50 • d. 800 x 500
• 400• 4000• 40 000• 400 000
![Page 32: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/32.jpg)
Oral examples - 3
= 50
![Page 33: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/33.jpg)
Oral examples - 3
= 50
![Page 34: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/34.jpg)
Oral examples - 3
= 500
![Page 35: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/35.jpg)
Oral examples - 3
= 500
![Page 36: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/36.jpg)
Oral examples - 4
= 200
![Page 37: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/37.jpg)
Oral examples - 4
= 200
![Page 38: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/38.jpg)
Oral examples - 4
= 2000
![Page 39: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/39.jpg)
Oral examples - 4
= 2000
![Page 40: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/40.jpg)
Written examples
1. 80 x 7
2. 80 x 70
3. 800 x 70
4. 800 x700
• 560• 5600• 56 000• 560 000
![Page 41: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/41.jpg)
Written examples
5. 40 x 5
6. 40 x 50
7. 400 x 50
8. 400 x 500
• 200• 2000• 20 000• 200 000
![Page 42: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/42.jpg)
9.
= 50
![Page 43: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/43.jpg)
10.
= 50
![Page 44: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/44.jpg)
11.
= 500
![Page 45: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/45.jpg)
12.
= 500
![Page 46: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/46.jpg)
13.
= 200
![Page 47: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/47.jpg)
14.
= 20
![Page 48: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/48.jpg)
15.
= 2000
![Page 49: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/49.jpg)
16.
= 2000
![Page 50: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/50.jpg)
Estimation
Answers are not exact
![Page 51: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/51.jpg)
Exercise 10
17. 91 x 18 18. 82 x 2919. 73 x 36 20. 64 x 4721. 621 x 1922. 685 x 3223. 817 x 38 24. 893 x 51
• 90 x 20 ≈ 1800• 80 x 30 ≈ 2400• 70 x 40 ≈ 2800• 60 x 50 ≈ 3000• 600 x 20 ≈ 12000• 600 x 30 ≈ 18000• 800 x 40 ≈ 32000• 900 x 50 ≈ 45000
![Page 52: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/52.jpg)
25.
≈ 5
![Page 53: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/53.jpg)
26.
≈ 2
![Page 54: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/54.jpg)
27.
≈ 4
![Page 55: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/55.jpg)
28.
≈ 3
![Page 56: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/56.jpg)
29.
≈ 40
![Page 57: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/57.jpg)
30.
≈ 30
![Page 58: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/58.jpg)
31.
≈ 20
![Page 59: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/59.jpg)
32.
≈ 50
![Page 60: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/60.jpg)
33.
≈ 400
![Page 61: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/61.jpg)
34.
≈ 2500
![Page 62: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/62.jpg)
35.
≈ 90 000
![Page 63: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/63.jpg)
36.
≈ 160 000
![Page 64: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/64.jpg)
37.
≈ 10
![Page 65: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/65.jpg)
38.
≈ 20
![Page 66: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/66.jpg)
39.
≈ 30
![Page 67: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/67.jpg)
40.
≈ 100
![Page 68: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/68.jpg)
41.
≈ 40
![Page 69: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/69.jpg)
42.
≈ 20
![Page 70: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/70.jpg)
43.
≈ 60
![Page 71: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/71.jpg)
44.
≈ 30
![Page 72: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/72.jpg)
45.
≈ 2
![Page 73: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/73.jpg)
46.
= 4
![Page 74: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/74.jpg)
47.
= 6
![Page 75: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/75.jpg)
48.
= 3
![Page 76: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/76.jpg)
49.
= 8000
![Page 77: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/77.jpg)
50.
= 27000
![Page 78: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/78.jpg)
51.
= 160000
![Page 79: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/79.jpg)
52.
= 810000
![Page 80: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/80.jpg)
Making Estimates
Continued
![Page 81: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/81.jpg)
Fill the gaps
Item Unit cost ($)
Quantity Estimated cost ($)
Apples 1.83 4
Chickens 8.95 9
Calculator 16.85 7
DVD 9.95 10
![Page 82: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/82.jpg)
Fill the gaps
Item Unit cost ($)
Quantity Estimated cost ($)
Apples 1.83 4 8
Chickens 8.95 9 81
Calculator 16.85 7 140
DVD 9.95 10 100
![Page 83: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/83.jpg)
Fill the gaps
Item Unit cost ($)
Quantity Estimated cost ($)
Hairdryer 23.15 38
Toaster 47.95 27
Shorts 14.85 74
Chairs 83.75 65
![Page 84: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/84.jpg)
Fill the gaps
Item Unit cost ($)
Quantity Estimated cost ($)
Hairdryer 23.15 38 800
Toaster 47.95 27 1500
Shorts 14.85 74 700
Chairs 83.75 65 5600
![Page 85: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/85.jpg)
Fill the gaps
Item Total cost Quantity Estimated unit cost
Shorts 64.91 7
Books 47.99 8
Heaters 3385 9
Fridges 6725 7
![Page 86: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/86.jpg)
Fill the gaps
Item Total cost Quantity Estimated unit cost
Shorts 64.91 7 9
Books 47.99 8 6
Heaters 3385 9 400
Fridges 6725 7 1000
![Page 87: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/87.jpg)
Fill the gaps
Item Total cost Quantity Estimated unit cost
Watches 2225 51
Shoes 4309 78
Calculator 2683 92
Trousers 3416 83
![Page 88: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/88.jpg)
Fill the gaps
Item Total cost Quantity Estimated unit cost
Watches 2225 51 40
Shoes 4309 78 50
Calculator 2683 92 30
Trousers 3416 83 40
![Page 89: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/89.jpg)
Exercise 12
![Page 90: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/90.jpg)
1.
= 2
![Page 91: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/91.jpg)
2.
= 3
![Page 92: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/92.jpg)
3.
= 10
![Page 93: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/93.jpg)
4.
= 100
![Page 94: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/94.jpg)
5.
= 2
![Page 95: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/95.jpg)
6.
= 10
![Page 96: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/96.jpg)
7.
= 2
![Page 97: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/97.jpg)
8.
= 2
![Page 98: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/98.jpg)
9.
= 4
![Page 99: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/99.jpg)
10.
= 8
![Page 100: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/100.jpg)
13.
![Page 101: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/101.jpg)
14.
![Page 102: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/102.jpg)
15.
![Page 103: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/103.jpg)
16.
![Page 104: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/104.jpg)
17.
![Page 105: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/105.jpg)
18.
![Page 106: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/106.jpg)
19.
![Page 107: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/107.jpg)
20.
![Page 108: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/108.jpg)
21.
![Page 109: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/109.jpg)
22.
![Page 110: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/110.jpg)
23.
![Page 111: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/111.jpg)
24.
![Page 112: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/112.jpg)
25.
![Page 113: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/113.jpg)
26.
![Page 114: Rounding. Round to the nearest whole number 621.8 19.02 57.04 98.63 1.03 610.8 519.6 622 19 57 99 1 611 520.](https://reader036.fdocuments.us/reader036/viewer/2022081421/5697bfa81a28abf838c9928b/html5/thumbnails/114.jpg)
27.