expert Set 21 Form Exercise

Write the fact family for 7, 10, 70:

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Answer: 7 × 10 = 70; 10 × 7 = 70; 70 ÷ 7 = 10; 70 ÷ 10 = 7

SubType
fact-family
Facts
  • 7 × 10 = 70
  • 10 × 7 = 70
  • 70 ÷ 7 = 10
  • 70 ÷ 10 = 7
Difficulty
expert

Write the fact family for 8, 1, 9:

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Answer: 8 + 1 = 9; 1 + 8 = 9; 9 - 8 = 1; 9 - 1 = 8

SubType
fact-family
Facts
  • 8 + 1 = 9
  • 1 + 8 = 9
  • 9 - 8 = 1
  • 9 - 1 = 8
Difficulty
expert

Write the fact family for 3, 5, 8:

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Answer: 3 + 5 = 8; 5 + 3 = 8; 8 - 3 = 5; 8 - 5 = 3

SubType
fact-family
Facts
  • 3 + 5 = 8
  • 5 + 3 = 8
  • 8 - 3 = 5
  • 8 - 5 = 3
Difficulty
expert

Write the fact family for 5, 2, 7:

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Answer: 5 + 2 = 7; 2 + 5 = 7; 7 - 5 = 2; 7 - 2 = 5

SubType
fact-family
Facts
  • 5 + 2 = 7
  • 2 + 5 = 7
  • 7 - 5 = 2
  • 7 - 2 = 5
Difficulty
expert

Write the fact family for 6, 3, 9:

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Answer: 6 + 3 = 9; 3 + 6 = 9; 9 - 6 = 3; 9 - 3 = 6

SubType
fact-family
Facts
  • 6 + 3 = 9
  • 3 + 6 = 9
  • 9 - 6 = 3
  • 9 - 3 = 6
Difficulty
expert