Workbook Detail
Function Machine Subtraction Hard — Set 50
? → [×2 + 3] → 21
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Answer: 9
- SubType
- find-input
- Rule
- ×2 + 3
- Input
- 9
- Output
- 21
- Difficulty
- hard
Input: 5 → [?] → 13, what is the rule?
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Answer: ×3 - 2
- SubType
- find-rule
- Rule
- ×3 - 2
- Input
- 5
- Output
- 13
- Difficulty
- hard
Input: 10 → [?] → 30, what is the rule?
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Answer: ×3
- SubType
- find-rule
- Rule
- ×3
- Input
- 10
- Output
- 30
- Difficulty
- hard
Input: 1 → [+2] → ?
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Answer: 3
- SubType
- find-output
- Rule
- +2
- Input
- 1
- Output
- 3
- Difficulty
- hard
? → [-1] → 7
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Answer: 8
- SubType
- find-input
- Rule
- -1
- Input
- 8
- Output
- 7
- Difficulty
- hard
Input: 7 → [?] → 22, what is the rule?
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Answer: +4 ×2
- SubType
- find-rule
- Rule
- +4 ×2
- Input
- 7
- Output
- 22
- Difficulty
- hard
? → [×3] → 24
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Answer: 8
- SubType
- find-input
- Rule
- ×3
- Input
- 8
- Output
- 24
- Difficulty
- hard
Input: 4 → [?] → 9, what is the rule?
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Answer: ×2 + 1
- SubType
- find-rule
- Rule
- ×2 + 1
- Input
- 4
- Output
- 9
- Difficulty
- hard
Teaching Notes
Practice function machine subtraction with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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