function-machine/multiplication/expert · セット 51
8 problems
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日付：
1
? → [×2 + 1] → 3
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2
Input: 9 → [×3] → ?
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3
Input: 7 → [?] → 9, what is the rule?
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4
Input: 7 → [?] → 6, what is the rule?
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5
Input: 5 → [×3] → ?
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6
Input: 7 → [?] → 12, what is the rule?
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7
Input: 3 → [?] → 2, what is the rule?
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8
Input: 9 → [×3 - 2] → ?
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