B Set 30 Unknown

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                "type": "decimals",
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                "type": "decimals",
                "subType": "multiply",
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                "question": "1.6 × 9.8 = ?",
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                "id": 6,
                "type": "decimals",
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                "operand1": 59.4,
                "operand2": 6,
                "question": "59.4 ÷ 6 = ?",
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                "id": 7,
                "type": "decimals",
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                "operand2": 2,
                "question": "30.8 ÷ 2 = ?",
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                "id": 10,
                "type": "decimals",
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                "id": 11,
                "type": "decimals",
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                "operand1": 54,
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                "id": 15,
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                "operand1": 18.2,
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                "id": 16,
                "type": "decimals",
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                "operand1": 12.7,
                "operand2": 5.1,
                "question": "12.7 × 5.1 = ?",
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                "id": 17,
                "type": "decimals",
                "subType": "divide",
                "operand1": 103.2,
                "operand2": 8,
                "question": "103.2 ÷ 8 = ?",
                "answer": 12.9,
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                "type": "decimals",
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                "id": 19,
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                "operand1": 11,
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                "answer": 3,
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                "id": 20,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 8.2,
                "operand2": 1.8,
                "question": "8.2 × 1.8 = ?",
                "answer": 14.76,
                "correctAnswer": "14.76",
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