medium Set 31 Form Exercise

Write the fact family for 2, 13, 15:

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Answer: 2 + 13 = 15; 13 + 2 = 15; 15 - 2 = 13; 15 - 13 = 2

SubType
fact-family
Facts
  • 2 + 13 = 15
  • 13 + 2 = 15
  • 15 - 2 = 13
  • 15 - 13 = 2
Difficulty
normal

Write the fact family for 13, 5, 18:

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Answer: 13 + 5 = 18; 5 + 13 = 18; 18 - 13 = 5; 18 - 5 = 13

SubType
fact-family
Facts
  • 13 + 5 = 18
  • 5 + 13 = 18
  • 18 - 13 = 5
  • 18 - 5 = 13
Difficulty
normal

Write the fact family for 15, 1, 16:

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

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

Write the fact family for 8, 4, 12:

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Answer: 8 + 4 = 12; 4 + 8 = 12; 12 - 8 = 4; 12 - 4 = 8

SubType
fact-family
Facts
  • 8 + 4 = 12
  • 4 + 8 = 12
  • 12 - 8 = 4
  • 12 - 4 = 8
Difficulty
normal

Write the fact family for 10, 1, 11:

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

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

Write the fact family for 3, 10, 13:

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Answer: 3 + 10 = 13; 10 + 3 = 13; 13 - 3 = 10; 13 - 10 = 3

SubType
fact-family
Facts
  • 3 + 10 = 13
  • 10 + 3 = 13
  • 13 - 3 = 10
  • 13 - 10 = 3
Difficulty
normal