adding and subtracting multiples of 10

Add 40

100

80

120

200

45

85

300

200

240

400

1500

1540

500

3456

3496

Add 60

100

10

70

200

17

77

300

34

94

400

537

597

500

2057

2117

Subtract 20

100

120

100

200

278

258

300

4250

4230

400

345

325

500

2022

2002

Subtract 30

100

30

0

200

94

64

300

320

290

400

1560

1530

500

3333

3303

Word Problems

100

Mark had 78 puzzle pieces. He lost 30 pieces. How many does Mark have left?

Mark had 48 pieces left.

200

Sarah baked 75 cookies for her class. In the middle of the night her mother ate 20 cookies. How many does Sarah have left?

Sarah has 55 cookies left.

300

Cheri had 189 stickers. Her father brought her 50 more stickers from Walmart. How many stickers does Cherri have now?

Cherri has 239 stickers now.

400

Teacher Simms has 359 Women's basketball jerseys. Her cousin asked to have 60 of them. How many jerseys does Teacher Simms have left?

Teacher Simms have 299 jerseys left.

500

Myah's baby brother has 1,356 pieces of clothing. Myah uses her allowance to buy him 80 more pieces of clothes. How many pieces of clothing does he have now?

He now has 1436 pieces of clothing.