Workbook Detail
Function Machine Subtraction Medium — Set 87
Input: 9 → [?] → 19, what is the rule?
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Answer: ×2 + 1
- SubType
- find-rule
- Rule
- ×2 + 1
- Input
- 9
- Output
- 19
- Difficulty
- medium
? → [×3 - 2] → 19
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Answer: 7
- SubType
- find-input
- Rule
- ×3 - 2
- Input
- 7
- Output
- 19
- Difficulty
- medium
Input: 9 → [?] → 21, what is the rule?
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Answer: ×2 + 3
- SubType
- find-rule
- Rule
- ×2 + 3
- Input
- 9
- Output
- 21
- Difficulty
- medium
Input: 5 → [×5] → ?
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Answer: 25
- SubType
- find-output
- Rule
- ×5
- Input
- 5
- Output
- 25
- Difficulty
- medium
? → [×2 + 1] → 11
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Answer: 5
- SubType
- find-input
- Rule
- ×2 + 1
- Input
- 5
- Output
- 11
- Difficulty
- medium
Input: 2 → [?] → 7, what is the rule?
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Answer: +5
- SubType
- find-rule
- Rule
- +5
- Input
- 2
- Output
- 7
- Difficulty
- medium
Input: 6 → [-1] → ?
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Answer: 5
- SubType
- find-output
- Rule
- -1
- Input
- 6
- Output
- 5
- Difficulty
- medium
Input: 10 → [?] → 30, what is the rule?
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Answer: ×3
- SubType
- find-rule
- Rule
- ×3
- Input
- 10
- Output
- 30
- Difficulty
- medium
Teaching Notes
Practice function machine subtraction with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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