Relate Addition and Subtraction , True and False

A

100

Write the related addition and subtraction fact 

4, 3, 7 

3+ 4=

3+4=7

7-4=3

7-3=4

200

Find the related subtraction facts.

5+6=11

11-5=6

11-6=5

300

Find the related subtraction facts.

10+3=13

13-10=3

13-3=10

400

Find the related subtraction facts.

2+1=3

3-1=2

3-2=1

500

True or False 

9-1=10

False 

9-1=8

B

100

Find the related subtraction facts. 

4+2=6

6-2=4 

6-4=2

200

Find the related subtraction facts.

4+1=5

5-1=4

5-4=1

300

Find the related subtraction facts.

1+3=4

4-3=1

4-1=3

400

Find the related subtraction facts.

5+1=6

6-5=1

6-1=5

500

True or False 

8-2=6

True

C

100

Find the related subtraction facts. 

1+8=9

9-8=1

9-1=8

200

Find the related subtraction facts.

7+2=9

9-7=2

9-2=7

300

Find the related subtraction facts.

2+6=8

8-6=2

8-2=6

400

Find the related subtraction facts.

5+3=8

8-3=5

8-5=3

500

Find the related subtraction facts.

4+1=5

5-4=1

5-1=4

D

100

Find the related subtraction facts.

6+2=8

8-2=6

8-6=2

200

Find the related subtraction facts.

4+5=9

9-4=5

9-5=4

300

Find the related subtraction facts.

1+4=5

5-1=4

5-4=1

400

Write a subtraction number sentence , then write a related addition fact.

There are 8 lizards. 6 of them run away. How many lizards are left?

8-6=2

2+6=8

500

Find the related subtraction facts.

2+3=5

5-3=2

5-2=3

E

100

Find the related subtraction facts.

3+1=4

4-1=3

4-3=1

200

Find the related subtraction facts.

3+1=4

4-1=3

4-3=1

300

Find the related subtraction facts.

6+3=9

9-3=6

9-6=3

400

what do we call these 2 number sentences ? 

related facts or subtract? 

3+1= 4

4-1=3

related facts

500

True or false 

7=8-1

True