PM2_10.2_Connecting addition and subtraction

Find the related ADDITION fact for:

12 - 9 = 3

• 3 + 9 = 12

• 9 + 12 = 3

• 9 + 12 = 21

Find the related ADDITION fact for:

15 - 9 = 6

• 6 + 9 = 15

• 15 - 9 = 6

• 15 + 6 = 21

Find the related ADDITION fact for:

14 - 7 = 7

• 14 + 1 = 15

• 7 + 7 = 14

• 7 + 14 = 21

Find the related ADDITION fact for:

17 - 9 = 6

• 6 + 9 = 17

• 17 - 9 = 6

• 17 + 6 = 23

Find the related ADDITION fact for:

6 - 2 = 4

• 2 + 6 = 4

• 2 + 4 = 6

• 6 - 4 = 2

Find the related SUBTRACTION fact for:

11 + 6 = 17

• 17 + 6 = 23

• 11 - 6 = 5

• 17 - 6 = 11

Find the related SUBTRACTION fact for:

7 + 7 = 14

• 7 - 7 = 14

• 14 - 7 = 7

• 14 - 7 = 21

Find the related SUBTRACTION fact for:

13 + 3 = 16

• 16 - 3 = 13

• 13 + 3 = 16

• 16 - 3 = 3

Find the related SUBTRACTION fact for:

11 + 9 = 20

• 20 - 11 = 11

• 20 - 11 = 9

• 11 - 9 = 20

Find the related SUBTRACTION fact for:

16 + 2 = 18

• 16 - 2 = 18

• 18 - 6 = 12

• 18 - 2 = 16