Workbook Detail
Number Sense Complements Complement Of 9 — Set 54
What number + 15 = 20?
Show answer
Answer: 5
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 15
- Difficulty
- normal
Find the complement to 20: 5 + __ = 20
Show answer
Answer: 15
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 5
- Difficulty
- normal
What number + 9 = 10?
Show answer
Answer: 1
- SubType
- complement-of-9
- Total
- 10
- KnownAddend
- 9
- Difficulty
- normal
Find the complement to 100: 43 + __ = 100
Show answer
Answer: 57
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 43
- Difficulty
- normal
__ + 94 = 100
Show answer
Answer: 6
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 94
- Difficulty
- normal
__ + 1 = 10
Show answer
Answer: 9
- SubType
- complement-of-9
- Total
- 10
- KnownAddend
- 1
- Difficulty
- normal
What number + 68 = 100?
Show answer
Answer: 32
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 68
- Difficulty
- normal
__ + 8 = 20
Show answer
Answer: 12
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 8
- Difficulty
- normal
Find the complement to 20: 11 + __ = 20
Show answer
Answer: 9
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 11
- Difficulty
- normal
__ + 9 = 10
Show answer
Answer: 1
- SubType
- complement-of-9
- Total
- 10
- KnownAddend
- 9
- Difficulty
- normal
Find the complement to 20: 17 + __ = 20
Show answer
Answer: 3
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 17
- Difficulty
- normal
__ + 48 = 100
Show answer
Answer: 52
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 48
- Difficulty
- normal
__ + 35 = 100
Show answer
Answer: 65
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 35
- Difficulty
- normal
__ + 9 = 20
Show answer
Answer: 11
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 9
- Difficulty
- normal
__ + 3 = 10
Show answer
Answer: 7
- SubType
- complement-of-9
- Total
- 10
- KnownAddend
- 3
- Difficulty
- normal
__ + 15 = 20
Show answer
Answer: 5
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 15
- Difficulty
- normal
What number + 8 = 10?
Show answer
Answer: 2
- SubType
- complement-of-9
- Total
- 10
- KnownAddend
- 8
- Difficulty
- normal
Find the complement to 20: 14 + __ = 20
Show answer
Answer: 6
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 14
- Difficulty
- normal
__ + 1 = 20
Show answer
Answer: 19
- SubType
- complement-of-9
- Total
- 20
- KnownAddend
- 1
- Difficulty
- normal
Find the complement to 100: 22 + __ = 100
Show answer
Answer: 78
- SubType
- complement-of-9
- Total
- 100
- KnownAddend
- 22
- Difficulty
- normal