Addition and Subtraction Review

Addition

100

439 + 235

674

200

2354 + 7128 

9482

300

3,529 + 4,568

8,097

400

4,893 + 4,837

9,730

500

4,999 + 3,999

8,998

Subtraction

100

519 - 254

265

200

745 - 568

177

300

1,690 - 472

1218

400

6,845 - 2,481

4,364

500

7,450 - 3,572

3,878

Properties

100

What property does this show?

5 + 6 = 11      6  + 5 = 11

Commutative Property of Addition

200

What property does this show?

0 + 34 = 34

Identity Property of Addition

300

What property does this show?

(9 + 5) + 5 = 9 + (5 + 5)

Associative Property of Addition

400

Which one shows the Commutitive Property of Addition:

a)  4 + 7 = 11   11 - 7 = 4

b.) 4 + 7 = 11   7 + 4 = 11

4 + 7 = 11   7 + 4 = 11

500

What two properties does this show?

5 + 0 = 5        0 + 5 = 5

Identity Property of Addition

Commutative Property of Addition

Inverse Operation

100

What is the inverse operation?

15 - 7 = 8

8 + 7 = 15        or         7 + 8 = 15

200

What is the inverse operation?

45 - 24 = 21

21 + 24 = 45      or     24 + 21 = 45

300

Add, then check your work by showing the inverse operation?

62 + 78

140 - 78 = 62

400

Check your work using the inverse operation:

762 - 389

373 + 389 = 762

500

Check your work using the inverse operation:

8,240 - 3,585

4,655 + 3,585 = 8,240