medium Set 38 Form Exercise

Write the fact family for 13, 7, 20:

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Answer: 13 + 7 = 20; 7 + 13 = 20; 20 - 13 = 7; 20 - 7 = 13

SubType
fact-family
Facts
  • 13 + 7 = 20
  • 7 + 13 = 20
  • 20 - 13 = 7
  • 20 - 7 = 13
Difficulty
normal

Write the fact family for 15, 3, 18:

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

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

Write the fact family for 5, 15, 20:

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Answer: 5 + 15 = 20; 15 + 5 = 20; 20 - 5 = 15; 20 - 15 = 5

SubType
fact-family
Facts
  • 5 + 15 = 20
  • 15 + 5 = 20
  • 20 - 5 = 15
  • 20 - 15 = 5
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 5, 12, 17:

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Answer: 5 + 12 = 17; 12 + 5 = 17; 17 - 5 = 12; 17 - 12 = 5

SubType
fact-family
Facts
  • 5 + 12 = 17
  • 12 + 5 = 17
  • 17 - 5 = 12
  • 17 - 12 = 5
Difficulty
normal

Write the fact family for 1, 10, 11:

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Answer: 1 + 10 = 11; 10 + 1 = 11; 11 - 1 = 10; 11 - 10 = 1

SubType
fact-family
Facts
  • 1 + 10 = 11
  • 10 + 1 = 11
  • 11 - 1 = 10
  • 11 - 10 = 1
Difficulty
normal