Function Machine Mixed Ops Hard — Set 85

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                "subType": "find-input",
                "rule": "+10",
                "input": 7,
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                "correctAnswer": "7",
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                "id": 4,
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                "output": 3,
                "question": "Input: 1 → [+2] → ?",
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                "correctAnswer": "3",
                "difficulty": "hard"
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                "id": 5,
                "type": "function-machine",
                "subType": "find-input",
                "rule": "×5",
                "input": 9,
                "output": 45,
                "question": "? → [×5] → 45",
                "answer": 9,
                "correctAnswer": "9",
                "difficulty": "hard"
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                "id": 6,
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                "correctAnswer": "4",
                "difficulty": "hard"
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                "id": 7,
                "type": "function-machine",
                "subType": "find-output",
                "rule": "-3",
                "input": 9,
                "output": 6,
                "question": "Input: 9 → [-3] → ?",
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                "correctAnswer": "6",
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                "id": 8,
                "type": "function-machine",
                "subType": "find-rule",
                "rule": "×5",
                "input": 8,
                "output": 40,
                "question": "Input: 8 → [?] → 40, what is the rule?",
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