Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.
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Transcript of Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.
![Page 1: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/1.jpg)
Rounding Numbers to the 100 Thousands
Place
Copyright © 2013 Kelly Mott
![Page 2: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/2.jpg)
RoundingPart 1: LessonPart 2: Online Practice
Copyright © 2013 Kelly Mott
![Page 3: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/3.jpg)
FOCUS QUESTION: What does it mean to
round a number?
Copyright © 2013 Kelly Mott
![Page 4: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/4.jpg)
• When you round a number you tell about how many or about how much.
• Rounding does not give an exact amount.
Copyright © 2013 Kelly Mott
Rounding
How many cookies are in
the cookie jar?
Answer: There are about 20 cookies in the cookie jar.
![Page 5: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/5.jpg)
FOCUS QUESTION: How do I decide what to
round to?
Copyright © 2013 Kelly Mott
![Page 6: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/6.jpg)
When you round a number you can do the following:
1. You can look at a number line to see what number your number is closer to.
2. You can follow the rounding rules to help you round a number.
Copyright © 2013 Kelly Mott
![Page 7: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/7.jpg)
Rounding with a Number Line
Copyright © 2013 Kelly Mott
![Page 8: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/8.jpg)
Rounding to the Nearest 10
Copyright © 2013 Kelly Mott
![Page 9: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/9.jpg)
Round to the Nearest 10
• You can use a number line to round numbers.• Round 32 to the nearest ten:
• 32 is closer to __________, so it rounds to ___________.
30 40
Copyright © 2013 Kelly Mott
![Page 10: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/10.jpg)
Round to the Nearest 10
• Round 66 to the nearest ten:
• 66 is closer to __________, so it rounds to ___________.
60 70
Copyright © 2013 Kelly Mott
![Page 11: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/11.jpg)
Round to the Nearest 10
• Round 114 to the nearest ten:
• 114 is closer to __________, so it rounds to ___________.
110 120
Copyright © 2013 Kelly Mott
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Round to the Nearest 10
• Round 189 to the nearest ten:
• 114 is closer to __________, so it rounds to ___________.
180 190
Copyright © 2013 Kelly Mott
![Page 13: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/13.jpg)
Rounding to the Nearest 100
Copyright © 2013 Kelly Mott
![Page 14: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/14.jpg)
Round to the Nearest 100
• You can use a number line to round numbers.• Round 857 to the nearest hundred:
• 857 is closer to __________, so it rounds to ___________.
600 900700 800
Copyright © 2013 Kelly Mott
![Page 15: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/15.jpg)
Round to the Nearest 100
• Round 612 to the nearest hundred:
• 612 is closer to __________, so it rounds to ___________.
600 900700 800
Copyright © 2013 Kelly Mott
![Page 16: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/16.jpg)
Round to the Nearest 100
• Round 788 to the nearest hundred:
• 788 is closer to __________, so it rounds to ___________.
600 900700 800
Copyright © 2013 Kelly Mott
![Page 17: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/17.jpg)
Round to the Nearest 100
• Round 735 to the nearest hundred:
• 735 is closer to __________, so it rounds to ___________.
600 900700 800
Copyright © 2013 Kelly Mott
![Page 18: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/18.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 19: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/19.jpg)
Rounding Rules
Copyright © 2013 Kelly Mott
![Page 20: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/20.jpg)
Rounding to the Nearest 10
Copyright © 2013 Kelly Mott
![Page 21: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/21.jpg)
Rounding Without a Number Line
78
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 22: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/22.jpg)
You can use this poem to help you round numbers:
Find your number.Look right next door.4 or less just ignore.5 or more, add 1 more.
Copyright © 2013 Kelly Mott
![Page 23: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/23.jpg)
Rounding Practice 1:
15
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 24: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/24.jpg)
Rounding Practice 2:
33
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 25: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/25.jpg)
Rounding Practice 3:
228
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 26: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/26.jpg)
Rounding Practice 4:
3,614
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 27: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/27.jpg)
Rounding Practice 5:
32,576
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest ten:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 28: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/28.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 29: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/29.jpg)
Rounding to the Nearest 100
Copyright © 2013 Kelly Mott
![Page 30: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/30.jpg)
Rounding Practice 1:
215
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest hundred:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 31: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/31.jpg)
Rounding Practice 2:
563
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest hundred:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 32: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/32.jpg)
Rounding Practice 3:
3,481
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest hundred:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 33: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/33.jpg)
Rounding Practice 4:
13,854
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest hundred:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 34: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/34.jpg)
Rounding Practice 5:
51,318
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest hundred:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 35: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/35.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 36: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/36.jpg)
Rounding to the Nearest 1000
Copyright © 2013 Kelly Mott
![Page 37: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/37.jpg)
Rounding Practice 1:
2,415
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest thousand:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 38: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/38.jpg)
Rounding Practice 2:
1,233
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest thousand:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 39: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/39.jpg)
Rounding Practice 3:
13,581
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest thousand:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 40: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/40.jpg)
Rounding Practice 4:
39,150
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest thousand:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 41: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/41.jpg)
Rounding Practice 5:
103,718
1. Underline the number in the place value you will round.
2. Circle the number to the right of the underlined number.
Round to the nearest thousand:
3. Use the rounding pyramid:
RULES FOR ROUNDING
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
5
7
84
601
23
9
4. Any digit to the left of the underlined digit stays the same.
Copyright © 2013 Kelly Mott
![Page 42: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/42.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 43: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/43.jpg)
Rounding to the 10 Thousands
Copyright © 2013 Kelly Mott
![Page 44: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/44.jpg)
Round to the Nearest Ten Thousand
1. 18,200
2. 11,400
3. 143,466
4. 106,640Copyright © 2013 Kelly Mott
![Page 45: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/45.jpg)
Round to the Nearest Ten Thousand
1. 52,109
2. 16,419
3. 701,466
4. 167,640Copyright © 2013 Kelly Mott
![Page 46: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/46.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 47: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/47.jpg)
Rounding to the 100 Thousands
Copyright © 2013 Kelly Mott
![Page 48: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/48.jpg)
Round to the Nearest 100 Thousand
1. 352,200
2. 161,400
3. 5,143,466
4. 8,706,640Copyright © 2013 Kelly Mott
![Page 49: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/49.jpg)
Round to the Nearest 100 Thousand
1. 337,488
2. 169,859
3. 7,450,466
4. 2,247,640Copyright © 2013 Kelly Mott
![Page 50: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/50.jpg)
Does this make sense so far?
Copyright © 2013 Kelly Mott
![Page 51: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/51.jpg)
Copyright © 2013 Kelly Mott
![Page 52: Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott.](https://reader036.fdocuments.us/reader036/viewer/2022081503/56649db05503460f94a9f028/html5/thumbnails/52.jpg)
Online Practice:
Copyright © 2013 Kelly Mott