medium Set 33 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 5, 13, 18:

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

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

Write the fact family for 7, 3, 10:

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Answer: 7 + 3 = 10; 3 + 7 = 10; 10 - 7 = 3; 10 - 3 = 7

SubType
fact-family
Facts
  • 7 + 3 = 10
  • 3 + 7 = 10
  • 10 - 7 = 3
  • 10 - 3 = 7
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 13, 2, 15:

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

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