B Set 61 Unknown

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                "id": 10,
                "type": "decimals",
                "subType": "divide",
                "operand1": 70,
                "operand2": 4,
                "question": "70.0 ÷ 4 = ?",
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                "operand2": 8.4,
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                "operand1": 13.1,
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                "answer": 17,
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                "id": 16,
                "type": "decimals",
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                "operand1": 84.8,
                "operand2": 8,
                "question": "84.8 ÷ 8 = ?",
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                "question": "3.7 - 1.7 = ?",
                "answer": 2,
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                "id": 20,
                "type": "decimals",
                "subType": "add",
                "operand1": 9.5,
                "operand2": 8,
                "question": "9.5 + 8.0 = ?",
                "answer": 17.5,
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