expert Set 33 Form Exercise

Write the fact family for 1, 7, 8:

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Answer: 1 + 7 = 8; 7 + 1 = 8; 8 - 1 = 7; 8 - 7 = 1

SubType
fact-family
Facts
  • 1 + 7 = 8
  • 7 + 1 = 8
  • 8 - 1 = 7
  • 8 - 7 = 1
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, 6, 9:

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

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

Write the fact family for 2, 4, 8:

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Answer: 2 × 4 = 8; 4 × 2 = 8; 8 ÷ 2 = 4; 8 ÷ 4 = 2

SubType
fact-family
Facts
  • 2 × 4 = 8
  • 4 × 2 = 8
  • 8 ÷ 2 = 4
  • 8 ÷ 4 = 2
Difficulty
expert

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
expert