expert Set 81 Form Exercise

Write the fact family for 9, 1, 10:

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Answer: 9 + 1 = 10; 1 + 9 = 10; 10 - 9 = 1; 10 - 1 = 9

SubType
fact-family
Facts
  • 9 + 1 = 10
  • 1 + 9 = 10
  • 10 - 9 = 1
  • 10 - 1 = 9
Difficulty
expert

Write the fact family for 2, 2, 4:

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Answer: 2 + 2 = 4; 2 + 2 = 4; 4 - 2 = 2; 4 - 2 = 2

SubType
fact-family
Facts
  • 2 + 2 = 4
  • 2 + 2 = 4
  • 4 - 2 = 2
  • 4 - 2 = 2
Difficulty
expert

Write the fact family for 4, 4, 8:

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

SubType
fact-family
Facts
  • 4 + 4 = 8
  • 4 + 4 = 8
  • 8 - 4 = 4
  • 8 - 4 = 4
Difficulty
expert

Write the fact family for 7, 2, 9:

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Answer: 7 + 2 = 9; 2 + 7 = 9; 9 - 7 = 2; 9 - 2 = 7

SubType
fact-family
Facts
  • 7 + 2 = 9
  • 2 + 7 = 9
  • 9 - 7 = 2
  • 9 - 2 = 7
Difficulty
expert

Write the fact family for 4, 6, 24:

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Answer: 4 × 6 = 24; 6 × 4 = 24; 24 ÷ 4 = 6; 24 ÷ 6 = 4

SubType
fact-family
Facts
  • 4 × 6 = 24
  • 6 × 4 = 24
  • 24 ÷ 4 = 6
  • 24 ÷ 6 = 4
Difficulty
expert

Write the fact family for 7, 7, 49:

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Answer: 7 × 7 = 49; 7 × 7 = 49; 49 ÷ 7 = 7; 49 ÷ 7 = 7

SubType
fact-family
Facts
  • 7 × 7 = 49
  • 7 × 7 = 49
  • 49 ÷ 7 = 7
  • 49 ÷ 7 = 7
Difficulty
expert