hard Set 65 Form Exercise

Write the fact family for 10, 8, 80:

Show answer

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 2, 10, 20:

Show answer

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
hard

Write the fact family for 5, 8, 40:

Show answer

Answer: 5 × 8 = 40; 8 × 5 = 40; 40 ÷ 5 = 8; 40 ÷ 8 = 5

SubType
fact-family
Facts
  • 5 × 8 = 40
  • 8 × 5 = 40
  • 40 ÷ 5 = 8
  • 40 ÷ 8 = 5
Difficulty
hard

Write the fact family for 1, 9, 10:

Show answer

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

Write the fact family for 5, 3, 15:

Show answer

Answer: 5 × 3 = 15; 3 × 5 = 15; 15 ÷ 5 = 3; 15 ÷ 3 = 5

SubType
fact-family
Facts
  • 5 × 3 = 15
  • 3 × 5 = 15
  • 15 ÷ 5 = 3
  • 15 ÷ 3 = 5
Difficulty
hard

Write the fact family for 10, 9, 90:

Show answer

Answer: 10 × 9 = 90; 9 × 10 = 90; 90 ÷ 10 = 9; 90 ÷ 9 = 10

SubType
fact-family
Facts
  • 10 × 9 = 90
  • 9 × 10 = 90
  • 90 ÷ 10 = 9
  • 90 ÷ 9 = 10
Difficulty
hard