hard Set 81 Form Exercise

Write the fact family for 10, 8, 80:

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Answer: 10 × 8 = 80; 8 × 10 = 80; 80 ÷ 10 = 8; 80 ÷ 8 = 10

SubType
fact-family
Facts
  • 10 × 8 = 80
  • 8 × 10 = 80
  • 80 ÷ 10 = 8
  • 80 ÷ 8 = 10
Difficulty
hard

Write the fact family for 6, 6, 36:

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Answer: 6 × 6 = 36; 6 × 6 = 36; 36 ÷ 6 = 6; 36 ÷ 6 = 6

SubType
fact-family
Facts
  • 6 × 6 = 36
  • 6 × 6 = 36
  • 36 ÷ 6 = 6
  • 36 ÷ 6 = 6
Difficulty
hard

Write the fact family for 3, 7, 10:

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Answer: 3 + 7 = 10; 7 + 3 = 10; 10 - 3 = 7; 10 - 7 = 3

SubType
fact-family
Facts
  • 3 + 7 = 10
  • 7 + 3 = 10
  • 10 - 3 = 7
  • 10 - 7 = 3
Difficulty
hard

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
hard

Write the fact family for 9, 5, 45:

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Answer: 9 × 5 = 45; 5 × 9 = 45; 45 ÷ 9 = 5; 45 ÷ 5 = 9

SubType
fact-family
Facts
  • 9 × 5 = 45
  • 5 × 9 = 45
  • 45 ÷ 9 = 5
  • 45 ÷ 5 = 9
Difficulty
hard