medium Set 31 Form Exercise

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 13, 1, 14:

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Answer: 13 + 1 = 14; 1 + 13 = 14; 14 - 13 = 1; 14 - 1 = 13

SubType
fact-family
Facts
  • 13 + 1 = 14
  • 1 + 13 = 14
  • 14 - 13 = 1
  • 14 - 1 = 13
Difficulty
normal

Write the fact family for 14, 4, 18:

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Answer: 14 + 4 = 18; 4 + 14 = 18; 18 - 14 = 4; 18 - 4 = 14

SubType
fact-family
Facts
  • 14 + 4 = 18
  • 4 + 14 = 18
  • 18 - 14 = 4
  • 18 - 4 = 14
Difficulty
normal

Write the fact family for 4, 5, 9:

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Answer: 4 + 5 = 9; 5 + 4 = 9; 9 - 4 = 5; 9 - 5 = 4

SubType
fact-family
Facts
  • 4 + 5 = 9
  • 5 + 4 = 9
  • 9 - 4 = 5
  • 9 - 5 = 4
Difficulty
normal

Write the fact family for 13, 3, 16:

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Answer: 13 + 3 = 16; 3 + 13 = 16; 16 - 13 = 3; 16 - 3 = 13

SubType
fact-family
Facts
  • 13 + 3 = 16
  • 3 + 13 = 16
  • 16 - 13 = 3
  • 16 - 3 = 13
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