Function Machine Division Hard — Set 18

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        "operation": "function-machine",
        "subject": "arithmetic",
        "difficulty": "hard",
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            "difficulty": "hard",
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        "problems": [
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                "type": "function-machine",
                "subType": "find-input",
                "rule": "-3",
                "input": 5,
                "output": 2,
                "question": "? → [-3] → 2",
                "answer": 5,
                "correctAnswer": "5",
                "difficulty": "hard"
            },
            {
                "id": 2,
                "type": "function-machine",
                "subType": "find-input",
                "rule": "+5",
                "input": 1,
                "output": 6,
                "question": "? → [+5] → 6",
                "answer": 1,
                "correctAnswer": "1",
                "difficulty": "hard"
            },
            {
                "id": 3,
                "type": "function-machine",
                "subType": "find-input",
                "rule": "+5",
                "input": 4,
                "output": 9,
                "question": "? → [+5] → 9",
                "answer": 4,
                "correctAnswer": "4",
                "difficulty": "hard"
            },
            {
                "id": 4,
                "type": "function-machine",
                "subType": "find-input",
                "rule": "×2 + 3",
                "input": 6,
                "output": 15,
                "question": "? → [×2 + 3] → 15",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "hard"
            },
            {
                "id": 5,
                "type": "function-machine",
                "subType": "find-output",
                "rule": "+2",
                "input": 5,
                "output": 7,
                "question": "Input: 5 → [+2] → ?",
                "answer": 7,
                "correctAnswer": "7",
                "difficulty": "hard"
            },
            {
                "id": 6,
                "type": "function-machine",
                "subType": "find-output",
                "rule": "×2 + 1",
                "input": 9,
                "output": 19,
                "question": "Input: 9 → [×2 + 1] → ?",
                "answer": 19,
                "correctAnswer": "19",
                "difficulty": "hard"
            },
            {
                "id": 7,
                "type": "function-machine",
                "subType": "find-rule",
                "rule": "×3 - 2",
                "input": 10,
                "output": 28,
                "question": "Input: 10 → [?] → 28, what is the rule?",
                "answer": "×3 - 2",
                "correctAnswer": "×3 - 2",
                "difficulty": "hard"
            },
            {
                "id": 8,
                "type": "function-machine",
                "subType": "find-output",
                "rule": "×2 + 3",
                "input": 9,
                "output": 21,
                "question": "Input: 9 → [×2 + 3] → ?",
                "answer": 21,
                "correctAnswer": "21",
                "difficulty": "hard"
            }
        ],
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            "columns": 2,
            "problemsPerPage": 20
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    },
    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
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