hard Set 90 Form Exercise

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 7, 1, 8:

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

SubType
fact-family
Facts
  • 7 + 1 = 8
  • 1 + 7 = 8
  • 8 - 7 = 1
  • 8 - 1 = 7
Difficulty
hard

Write the fact family for 6, 4, 24:

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

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

Write the fact family for 6, 9, 54:

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Answer: 6 × 9 = 54; 9 × 6 = 54; 54 ÷ 6 = 9; 54 ÷ 9 = 6

SubType
fact-family
Facts
  • 6 × 9 = 54
  • 9 × 6 = 54
  • 54 ÷ 6 = 9
  • 54 ÷ 9 = 6
Difficulty
hard

Write the fact family for 10, 4, 40:

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Answer: 10 × 4 = 40; 4 × 10 = 40; 40 ÷ 10 = 4; 40 ÷ 4 = 10

SubType
fact-family
Facts
  • 10 × 4 = 40
  • 4 × 10 = 40
  • 40 ÷ 10 = 4
  • 40 ÷ 4 = 10
Difficulty
hard

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
hard