medium Set 42 Form Exercise

Write the fact family for 3, 15, 18:

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Answer: 3 + 15 = 18; 15 + 3 = 18; 18 - 3 = 15; 18 - 15 = 3

SubType
fact-family
Facts
  • 3 + 15 = 18
  • 15 + 3 = 18
  • 18 - 3 = 15
  • 18 - 15 = 3
Difficulty
normal

Write the fact family for 16, 2, 18:

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Answer: 16 + 2 = 18; 2 + 16 = 18; 18 - 16 = 2; 18 - 2 = 16

SubType
fact-family
Facts
  • 16 + 2 = 18
  • 2 + 16 = 18
  • 18 - 16 = 2
  • 18 - 2 = 16
Difficulty
normal

Write the fact family for 7, 4, 11:

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Answer: 7 + 4 = 11; 4 + 7 = 11; 11 - 7 = 4; 11 - 4 = 7

SubType
fact-family
Facts
  • 7 + 4 = 11
  • 4 + 7 = 11
  • 11 - 7 = 4
  • 11 - 4 = 7
Difficulty
normal

Write the fact family for 19, 1, 20:

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Answer: 19 + 1 = 20; 1 + 19 = 20; 20 - 19 = 1; 20 - 1 = 19

SubType
fact-family
Facts
  • 19 + 1 = 20
  • 1 + 19 = 20
  • 20 - 19 = 1
  • 20 - 1 = 19
Difficulty
normal

Write the fact family for 17, 3, 20:

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Answer: 17 + 3 = 20; 3 + 17 = 20; 20 - 17 = 3; 20 - 3 = 17

SubType
fact-family
Facts
  • 17 + 3 = 20
  • 3 + 17 = 20
  • 20 - 17 = 3
  • 20 - 3 = 17
Difficulty
normal

Write the fact family for 1, 15, 16:

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Answer: 1 + 15 = 16; 15 + 1 = 16; 16 - 1 = 15; 16 - 15 = 1

SubType
fact-family
Facts
  • 1 + 15 = 16
  • 15 + 1 = 16
  • 16 - 1 = 15
  • 16 - 15 = 1
Difficulty
normal