hard Set 80 Form Exercise

Write the fact family for 10, 2, 20:

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

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

Write the fact family for 3, 14, 17:

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Answer: 3 + 14 = 17; 14 + 3 = 17; 17 - 3 = 14; 17 - 14 = 3

SubType
fact-family
Facts
  • 3 + 14 = 17
  • 14 + 3 = 17
  • 17 - 3 = 14
  • 17 - 14 = 3
Difficulty
hard

Write the fact family for 4, 2, 8:

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

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

Write the fact family for 8, 12, 20:

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Answer: 8 + 12 = 20; 12 + 8 = 20; 20 - 8 = 12; 20 - 12 = 8

SubType
fact-family
Facts
  • 8 + 12 = 20
  • 12 + 8 = 20
  • 20 - 8 = 12
  • 20 - 12 = 8
Difficulty
hard

Write the fact family for 3, 11, 33:

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Answer: 3 × 11 = 33; 11 × 3 = 33; 33 ÷ 3 = 11; 33 ÷ 11 = 3

SubType
fact-family
Facts
  • 3 × 11 = 33
  • 11 × 3 = 33
  • 33 ÷ 3 = 11
  • 33 ÷ 11 = 3
Difficulty
hard

Write the fact family for 2, 14, 16:

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Answer: 2 + 14 = 16; 14 + 2 = 16; 16 - 2 = 14; 16 - 14 = 2

SubType
fact-family
Facts
  • 2 + 14 = 16
  • 14 + 2 = 16
  • 16 - 2 = 14
  • 16 - 14 = 2
Difficulty
hard