medium Set 63 Form Exercise

Write the fact family for 15, 2, 17:

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Answer: 15 + 2 = 17; 2 + 15 = 17; 17 - 15 = 2; 17 - 2 = 15

SubType
fact-family
Facts
  • 15 + 2 = 17
  • 2 + 15 = 17
  • 17 - 15 = 2
  • 17 - 2 = 15
Difficulty
normal

Write the fact family for 15, 4, 19:

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Answer: 15 + 4 = 19; 4 + 15 = 19; 19 - 15 = 4; 19 - 4 = 15

SubType
fact-family
Facts
  • 15 + 4 = 19
  • 4 + 15 = 19
  • 19 - 15 = 4
  • 19 - 4 = 15
Difficulty
normal

Write the fact family for 18, 1, 19:

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Answer: 18 + 1 = 19; 1 + 18 = 19; 19 - 18 = 1; 19 - 1 = 18

SubType
fact-family
Facts
  • 18 + 1 = 19
  • 1 + 18 = 19
  • 19 - 18 = 1
  • 19 - 1 = 18
Difficulty
normal

Write the fact family for 8, 12, 20:

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Answer: 8 + 12 = 20; 12 + 8 = 20; 20 - 8 = 12; 20 - 12 = 8

SubType
fact-family
Facts
  • 8 + 12 = 20
  • 12 + 8 = 20
  • 20 - 8 = 12
  • 20 - 12 = 8
Difficulty
normal

Write the fact family for 9, 3, 12:

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Answer: 9 + 3 = 12; 3 + 9 = 12; 12 - 9 = 3; 12 - 3 = 9

SubType
fact-family
Facts
  • 9 + 3 = 12
  • 3 + 9 = 12
  • 12 - 9 = 3
  • 12 - 3 = 9
Difficulty
normal

Write the fact family for 17, 1, 18:

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Answer: 17 + 1 = 18; 1 + 17 = 18; 18 - 17 = 1; 18 - 1 = 17

SubType
fact-family
Facts
  • 17 + 1 = 18
  • 1 + 17 = 18
  • 18 - 17 = 1
  • 18 - 1 = 17
Difficulty
normal