Workbook Detail
Function Machine Subtraction Hard — Set 69
Input: 7 → [?] → 17, what is the rule?
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Answer: +10
- SubType
- find-rule
- Rule
- +10
- Input
- 7
- Output
- 17
- Difficulty
- hard
? → [×2 + 1] → 13
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Answer: 6
- SubType
- find-input
- Rule
- ×2 + 1
- Input
- 6
- Output
- 13
- Difficulty
- hard
? → [×2 + 3] → 7
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Answer: 2
- SubType
- find-input
- Rule
- ×2 + 3
- Input
- 2
- Output
- 7
- Difficulty
- hard
? → [×2] → 18
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Answer: 9
- SubType
- find-input
- Rule
- ×2
- Input
- 9
- Output
- 18
- Difficulty
- hard
Input: 3 → [?] → 5, what is the rule?
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Answer: +2
- SubType
- find-rule
- Rule
- +2
- Input
- 3
- Output
- 5
- Difficulty
- hard
? → [×3 - 2] → 16
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Answer: 6
- SubType
- find-input
- Rule
- ×3 - 2
- Input
- 6
- Output
- 16
- Difficulty
- hard
Input: 7 → [?] → 21, what is the rule?
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Answer: ×3
- SubType
- find-rule
- Rule
- ×3
- Input
- 7
- Output
- 21
- Difficulty
- hard
Input: 2 → [×5] → ?
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Answer: 10
- SubType
- find-output
- Rule
- ×5
- Input
- 2
- Output
- 10
- Difficulty
- hard
Teaching Notes
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