Workbook Detail
Function Machine Subtraction Hard — Set 60
? → [+4 ×2] → 12
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Answer: 2
- SubType
- find-input
- Rule
- +4 ×2
- Input
- 2
- Output
- 12
- Difficulty
- hard
? → [×2] → 2
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Answer: 1
- SubType
- find-input
- Rule
- ×2
- Input
- 1
- Output
- 2
- Difficulty
- hard
Input: 5 → [×2] → ?
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Answer: 10
- SubType
- find-output
- Rule
- ×2
- Input
- 5
- Output
- 10
- Difficulty
- hard
Input: 2 → [?] → 4, what is the rule?
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Answer: ×2
- SubType
- find-rule
- Rule
- ×2
- Input
- 2
- Output
- 4
- Difficulty
- hard
Input: 3 → [?] → 2, what is the rule?
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Answer: -1
- SubType
- find-rule
- Rule
- -1
- Input
- 3
- Output
- 2
- Difficulty
- hard
? → [×2 + 1] → 21
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Answer: 10
- SubType
- find-input
- Rule
- ×2 + 1
- Input
- 10
- Output
- 21
- Difficulty
- hard
Input: 2 → [+5] → ?
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Answer: 7
- SubType
- find-output
- Rule
- +5
- Input
- 2
- Output
- 7
- Difficulty
- hard
Input: 9 → [×2 + 3] → ?
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Answer: 21
- SubType
- find-output
- Rule
- ×2 + 3
- Input
- 9
- Output
- 21
- 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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