Let’s subtract! Maths - Seriously Addictive...

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02.032 ASM 3/6 WS Name: ____________ Addition and Subtraction: Models Student Nmber: ____________ Seriously Addictive Maths Date/Time: ____________ Copyright © Seriously Addictive Maths. All Rights Reserved. Page 1 Let’s subtract! Example: Dan had 697 balloons. He sold 298 balloons on Monday and 228 balloons on Tuesday. How many balloons were there left? There were 171 balloons left. 228 Sold: Tuesday Sold: Monday Left? 526 171 298 228 171 - = 697 - Whole Part Part Part 298 228 697 + = 171 + Part Part Part Whole 697 Original number of balloons 298 Seriously Addictive Maths

Transcript of Let’s subtract! Maths - Seriously Addictive...

Page 1: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 1

Let’s subtract! Example:

Dan had 697 balloons. He sold 298 balloons on

Monday and 228 balloons on Tuesday. How many

balloons were there left?

There were 171 balloons left.

228

Sold: Tuesday

Sold: Monday

Left?

526 171

298

228 171 - = 697

-

Whole Part Part Part

Part 298

228 697

1 + = 171

+

Part Part Part Whole

Part

697

Original number of balloons

298

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Page 2: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 2

Fill in the blanks:

1. Amy had 354 calendars. She gave away 198. How

many calendars does she have now?

She has 156 calendars now.

Original number of calendars

Gave away

Left?

156

354 198 156 - =

May 1

198

354

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Page 3: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 3

2. Ben had 297 cookies. He ate 178 cookies. How

many cookies are there left?

There are 119 cookies left.

cookie

Original number of cookies

Ate Left?

119

297

178 119 -

=

cookie

cookie

178 297

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Page 4: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 4

3. Jim had 511 sweets. He gave away 289 sweets.

How many sweets are left?

Gave away

There are 222 sweets left.

Original number of sweets

Gave away Left?

222

511

289 222 -

=

511

289

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Page 5: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 5

Let’s learn to draw models! Example:

Jim had 400 flowers. He sold 200 flowers in

the morning and 100 in the afternoon. How many

flowers were left?

There are 100 flowers left.

Left

-

Find out the

number of flowers

left by subtracting

what was sold

from the total.

?

Original number of flowers

200 100

First, draw a

box for the

total number

of flowers.

Then draw

the boxes

for the

flowers sold.

200

100 100 = 400

-

100

Sold in

morning

Sold in

afternoon

400

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Page 6: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 6

Answer the following questions by drawing models:

4. There were 411 ice cubes. If 298 ice cubes

melted, how many ice cubes were left?

There were 113 ice cubes left.

5. Roy had 517 bowls for sale. After the sale, there

were 289 bowls left. How many bowls did Roy sell?

Roy sold 228 bowls.

298

113 - = 411

289

228 - = 517

Original number of ice cubes

Left 298

411

Original number of bowls

Bowls sold 289

517

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Page 7: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 7

6. Bob sold 437 loaves of bread. If he had 800 loaves

before selling, how many loaves were left?

There were 363 loaves of bread left.

437

363 - = 800

511

Original number of loaves of bread

Left 437

800

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Page 8: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 8

7. Ted had 500 eggs. If 277 eggs were broken and

thrown away, how many eggs were left?

There were 223 eggs left.

277

223 - = 500

Original number of eggs

Left 277

500

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Page 9: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 9

8. Joe bought 892 bananas. 295 were rotten and

thrown away.

a) How many good bananas were there?

b) He gave away 276 bananas. How many bananas

were there left?

a)

There were 597 good bananas.

b)

There were 321 bananas left.

892

295 597 = -

597

276 321 = -

892

Good bananas

Left 295

Rotten

276

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Page 10: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 10

9. Jed had 871 doughnuts. He sold 295 doughnuts to

Pam and gave away 199 doughnuts. How many

doughnuts were left?

There were 377 doughnuts left.

295

199 377 - = 871

-

871

Left

295

Sold to Pam

199

Original number

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Page 11: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 11

10. Tom took 3 days to paint 731 doors. He painted

239 doors on Sunday and 277 doors on Monday. How

many doors did he paint on Tuesday?

Tom painted 215 doors on Tuesday.

277

239 215 - = 731

-

731

Sunday Tuesday

277

Monday

239

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Page 12: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 12

11. Kim sold 355 ties in May and 298 ties in June. If

she had 800 ties before selling any, how many ties

are left?

There are 147 ties left.

355

298 147 - = 800

-

800

Original number of ties

Sold: May

355

Sold: June

298

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Page 13: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 13

12. Fred had 502 pencils. He gave 215 pencils to

Dave and 119 pencils to Rita. How many pencils does

he have now?

Fred has 168 pencils now.

215

119 168 - = 502

-

Original number of pencils

Dave

215

Rita

119

502

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Page 14: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 14

Let’s learn to draw models! Example:

The red book has 346 pages. The blue book has 237

pages less than the red book. How many pages are

there in the blue book?

There are 109 pages in the

blue book.

First, draw a

box for the

red book.

Red book

?

Show the number

of pages that are

less.

Draw the box for

the blue book and

get its pages by

subtracting the

difference from

the total for the

red book.

237

109 - = 346

109

346

237

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Page 15: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 15

13. A shop had 678 kites. 251 were sold on Monday

and Tuesday.

a) How many kites were left? Draw the model.

b) If 147 were sold on Monday, was the number sold

on Tuesday more or less than Monday? Fill in the

blanks.

There were 427 kites left.

Number of kites sold on Tuesday:

b) There were 43 more sold on Monday than on

Tuesday.

251

147 104 = -

147

- 104 = 43

?

251

678

251 427 = -

678

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Page 16: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 16

Answer the following questions by drawing models:

14. Sam’s story has 876 words. Ann’s story is shorter

by 269 words. How many words are there in Ann’s

story?

There are 607 words in Ann’s story.

15. Pam sold 500 sweets. If Jack sold 279 less

sweets than Pam, how many sweets did Jack sell?

Jack sold 221 sweets.

269

607 - = 876

279

221 - = 500

Sam’s story

Ann’s story 269

876

Sweets Pam sold

Sweets Jack sold 279

500

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Page 17: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 17

16. 421 glasses of orange juice were sold on Sunday.

196 fewer glasses of juice were sold on Monday.

Altogether, 946 glasses of juice were sold from

Sunday to Tuesday.

a) How many glasses were sold on Monday?

b) How many glasses were sold on Tuesday?

a)

225 glasses of orange juice were sold on Monday.

b)

300 glasses of orange juice were sold on Tuesday.

196

225 - = 421

225

421 300 - = 946

-

Sunday

421

Monday 196

Tuesday

946

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Page 18: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 18

17. 416 children have blue bags. 219 less children

have red bags. If there are 902 children and the

rest of the children have green bags,

a) How many children have red bags?

b) How many children have green bags?

a)

There were 197 children who had red bags.

b)

There were 289 children who had green bags.

219

197 - = 416

416

197 289 - = 902

-

Blue bags

Red bags

Green bags

416

219

902

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Page 19: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 19

18. 793 skateboards were sold in May. In June, the

number sold was less by 197. In July, the number sold

was less than June by 189.

a) How many skateboards were sold in June?

b) How many skateboards were sold in July?

a)

There were 596 skateboards sold in June.

b)

There were 407skateboards sold in July.

197

596 - = 793

189

407 - = 596

May

793

June 197

July 189

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Page 20: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 20

19. Ian had 612 sweets. Ann had 128 fewer sweets

than Ian. She gave away 295 sweets. How many

sweets does Ann have now?

Ann has 189 sweets now.

128

295 189 - = 612

-

612

Ian

Ann 128 Gave away

295

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Page 21: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 21

20. Ben had 711 cookies. He gave away 218 cookies.

After giving away the cookies, he had 198 more

cookies than Kay. How many cookies does Kay have?

Kay has 295 cookies.

cookie

218

198 295 - = 711

-

711

Ben

Kay 218

198

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Page 22: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 22

21. 991 tables were sold over three days. 571 tables

were sold on the first day. 189 fewer tables were

sold on the second day.

a) How many tables were sold on the second day?

b) How many tables were sold on the third day?

a)

382 tables were sold on the second day.

b)

38 tables were sold on the third day.

189

382 - = 571

382

38 - = 991

189

- 571

Third day

First day

571

Second day

991

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Page 23: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 23

22. Tom has 671 stickers. This is 299 stickers more

than what Jack has. Jack has 177 stickers more than

Kay.

a) How many stickers does Jack have?

b) How many stickers does Kay have?

a)

Jack has 372 stickers.

b)

Kay has 195 stickers.

299

372 - = 671

177

195 - = 372

Tom

671

Jack 299

Kay 177

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Page 24: Let’s subtract! Maths - Seriously Addictive Mathematicsseriouslyaddictivemaths.com.sg/Octal/db/Files/02.032 ASM 3-6WS.pdf · Title: Let’s Add Author: Tay Wan Wan Created Date:

02.032 ASM 3/6 WS Name: ____________

Addition and Subtraction: Models Student Nmber: ____________

Seriously Addictive Maths Date/Time: ____________

Copyright © Seriously Addictive Maths. All Rights Reserved. Page 24

Challenging!

23. Dan and Ted have 398 marbles. Dan and Joe

have 457 marbles.

a) Who has more marbles: Ted or Joe?

Ans: Joe

b) How many more marbles does he have?

Draw models below to explain your answer.

Difference = 457 - 398

= 59

Joe has 59 more marbles than Ted.

Dan

Dan

398

Joe

Ted

457

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