B Set 66 Unknown

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                "question": "0.6 - 0.1 = ?",
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                "id": 10,
                "type": "decimals",
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                "operand1": 12.2,
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                "question": "12.2 × 1.1 = ?",
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                "id": 11,
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                "operand2": 11,
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                "operand1": 13.6,
                "operand2": 7.5,
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                "id": 16,
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                "operand1": 14.4,
                "operand2": 9,
                "question": "14.4 - 9.0 = ?",
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                "id": 17,
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                "operand1": 101.4,
                "operand2": 6,
                "question": "101.4 ÷ 6 = ?",
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                "operand1": 6.8,
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                "id": 19,
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                "operand1": 30,
                "operand2": 5,
                "question": "30.0 ÷ 5 = ?",
                "answer": 6,
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                "id": 20,
                "type": "decimals",
                "subType": "divide",
                "operand1": 109.8,
                "operand2": 6,
                "question": "109.8 ÷ 6 = ?",
                "answer": 18.3,
                "correctAnswer": "18.3",
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