24.25 Math 1G Chap 4 Ls 6+7

Find a related fact.

4 - 1 = 3

• 4 + 1 = 5
• 3 - 1 = 2
• 4 - 3 = 1
• 4 + 3 = 1

Choose a related subtraction fact.

13 - 8 = 5

• 3 + 5 = 8

• 8 - 5 = 3

• 13 - 5 = 8

Choose a related addition fact.

12 - 4 = 8

• 12 - 8 = 4

• 4 + 2 = 6

• 8 + 4 = 12

Choose a related addition and subtraction fact.

11 - 3 = 8

• 11 - 8 = 3

  8 + 3 = 11

• 8 + 11 = 19

  8 - 3 = 5

• 19 - 8 = 11

  11 + 8 = 19

Choose a related addition and subtraction fact.

14 - 3 = 11

• 11 - 3 = 8

  14 - 11 = 3

• 1 + 3 = 4

  4 - 3 = 1

• 3 + 11 = 14

  14 - 11 = 3

Complete the fact family.

• 9 + 6 = 15

  6 + 9 = 15

  15 - 6 = 9

  15 - 9 = 6

• 9 - 6 = 3

  9 - 3 = 6

  3 + 3 = 6

  6 + 6 = 12

• 6 + 6 = 12

  9 + 9 = 18

  18 - 15 = 3

  18 - 3 = 15

Choose the fact family.

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Kawan found 14 feathers. He gave 5 feathers to his brother. How many feathers does he have left?

• 14 - 5 = 9

• 1 4 + 5 = 20

• 5 + 9 = 14