B Set 70 Unknown

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                "subType": "divide",
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                "operand2": 6,
                "question": "108.6 ÷ 6 = ?",
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                "id": 6,
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                "operand1": 20,
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                "question": "54.6 ÷ 7 = ?",
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                "type": "decimals",
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                "question": "2.2 × 3.6 = ?",
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                "question": "12.6 - 7.6 = ?",
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                "operand1": 139,
                "operand2": 10,
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                "operand2": 1.7,
                "question": "17.1 - 1.7 = ?",
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                "operand1": 12.3,
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                "answer": 72.57,
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                "operand1": 16.3,
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                "question": "16.3 + 13.8 = ?",
                "answer": 30.1,
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                "subType": "multiply",
                "operand1": 15.5,
                "operand2": 9.8,
                "question": "15.5 × 9.8 = ?",
                "answer": 151.9,
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