hard Set 80 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
hard

Write the fact family for 4, 9, 36:

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Answer: 4 × 9 = 36; 9 × 4 = 36; 36 ÷ 4 = 9; 36 ÷ 9 = 4

SubType
fact-family
Facts
  • 4 × 9 = 36
  • 9 × 4 = 36
  • 36 ÷ 4 = 9
  • 36 ÷ 9 = 4
Difficulty
hard

Write the fact family for 5, 4, 9:

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Answer: 5 + 4 = 9; 4 + 5 = 9; 9 - 5 = 4; 9 - 4 = 5

SubType
fact-family
Facts
  • 5 + 4 = 9
  • 4 + 5 = 9
  • 9 - 5 = 4
  • 9 - 4 = 5
Difficulty
hard

Write the fact family for 6, 2, 8:

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Answer: 6 + 2 = 8; 2 + 6 = 8; 8 - 6 = 2; 8 - 2 = 6

SubType
fact-family
Facts
  • 6 + 2 = 8
  • 2 + 6 = 8
  • 8 - 6 = 2
  • 8 - 2 = 6
Difficulty
hard

Write the fact family for 2, 4, 6:

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Answer: 2 + 4 = 6; 4 + 2 = 6; 6 - 2 = 4; 6 - 4 = 2

SubType
fact-family
Facts
  • 2 + 4 = 6
  • 4 + 2 = 6
  • 6 - 2 = 4
  • 6 - 4 = 2
Difficulty
hard

Write the fact family for 1, 9, 10:

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

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