expert Set 13 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
expert

Write the fact family for 8, 9, 72:

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Answer: 8 × 9 = 72; 9 × 8 = 72; 72 ÷ 8 = 9; 72 ÷ 9 = 8

SubType
fact-family
Facts
  • 8 × 9 = 72
  • 9 × 8 = 72
  • 72 ÷ 8 = 9
  • 72 ÷ 9 = 8
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 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
expert

Write the fact family for 5, 9, 45:

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

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

Write the fact family for 2, 10, 20:

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Answer: 2 × 10 = 20; 10 × 2 = 20; 20 ÷ 2 = 10; 20 ÷ 10 = 2

SubType
fact-family
Facts
  • 2 × 10 = 20
  • 10 × 2 = 20
  • 20 ÷ 2 = 10
  • 20 ÷ 10 = 2
Difficulty
expert