medium Set 70 Form Exercise

Write the fact family for 18, 2, 20:

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Answer: 18 + 2 = 20; 2 + 18 = 20; 20 - 18 = 2; 20 - 2 = 18

SubType
fact-family
Facts
  • 18 + 2 = 20
  • 2 + 18 = 20
  • 20 - 18 = 2
  • 20 - 2 = 18
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 9, 11, 20:

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Answer: 9 + 11 = 20; 11 + 9 = 20; 20 - 9 = 11; 20 - 11 = 9

SubType
fact-family
Facts
  • 9 + 11 = 20
  • 11 + 9 = 20
  • 20 - 9 = 11
  • 20 - 11 = 9
Difficulty
normal

Write the fact family for 11, 8, 19:

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Answer: 11 + 8 = 19; 8 + 11 = 19; 19 - 11 = 8; 19 - 8 = 11

SubType
fact-family
Facts
  • 11 + 8 = 19
  • 8 + 11 = 19
  • 19 - 11 = 8
  • 19 - 8 = 11
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