Workbook Detail
Function Machine Subtraction Expert — Set 45
Input: 4 → [?] → 8, what is the rule?
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Answer: ×2
- SubType
- find-rule
- Rule
- ×2
- Input
- 4
- Output
- 8
- Difficulty
- expert
Input: 6 → [?] → 13, what is the rule?
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Answer: ×2 + 1
- SubType
- find-rule
- Rule
- ×2 + 1
- Input
- 6
- Output
- 13
- Difficulty
- expert
Input: 1 → [-1] → ?
- SubType
- find-output
- Rule
- -1
- Input
- 1
- Output
- 0
- Difficulty
- expert
? → [×2 + 1] → 3
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Answer: 1
- SubType
- find-input
- Rule
- ×2 + 1
- Input
- 1
- Output
- 3
- Difficulty
- expert
Input: 8 → [?] → 19, what is the rule?
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Answer: ×2 + 3
- SubType
- find-rule
- Rule
- ×2 + 3
- Input
- 8
- Output
- 19
- Difficulty
- expert
? → [-1] → 4
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Answer: 5
- SubType
- find-input
- Rule
- -1
- Input
- 5
- Output
- 4
- Difficulty
- expert
Input: 10 → [×2 + 1] → ?
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Answer: 21
- SubType
- find-output
- Rule
- ×2 + 1
- Input
- 10
- Output
- 21
- Difficulty
- expert
Input: 9 → [×2 + 3] → ?
Show answer
Answer: 21
- SubType
- find-output
- Rule
- ×2 + 3
- Input
- 9
- Output
- 21
- Difficulty
- expert
Teaching Notes
Practice function machine subtraction with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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