B Set 90 Unknown

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                "operand2": 10,
                "question": "104.0 ÷ 10 = ?",
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                "operand2": 17.1,
                "question": "10.3 + 17.1 = ?",
                "answer": 27.4,
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                "id": 3,
                "type": "decimals",
                "subType": "divide",
                "operand1": 36.9,
                "operand2": 3,
                "question": "36.9 ÷ 3 = ?",
                "answer": 12.3,
                "correctAnswer": "12.3",
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                "id": 4,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 2.7,
                "operand2": 1.3,
                "question": "2.7 × 1.3 = ?",
                "answer": 3.51,
                "correctAnswer": "3.51",
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            {
                "id": 5,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 1,
                "operand2": 0.4,
                "question": "1.0 - 0.4 = ?",
                "answer": 0.6,
                "correctAnswer": "0.6",
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                "id": 6,
                "type": "decimals",
                "subType": "add",
                "operand1": 16.4,
                "operand2": 13.7,
                "question": "16.4 + 13.7 = ?",
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                "id": 7,
                "type": "decimals",
                "subType": "divide",
                "operand1": 80.1,
                "operand2": 9,
                "question": "80.1 ÷ 9 = ?",
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                "id": 8,
                "type": "decimals",
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                "operand2": 0.6,
                "question": "3.8 - 0.6 = ?",
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                "id": 9,
                "type": "decimals",
                "subType": "add",
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                "operand2": 14.3,
                "question": "7.7 + 14.3 = ?",
                "answer": 22,
                "correctAnswer": "22",
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                "id": 10,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 10.9,
                "operand2": 4.9,
                "question": "10.9 × 4.9 = ?",
                "answer": 53.41,
                "correctAnswer": "53.41",
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                "id": 11,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 3,
                "operand2": 3.1,
                "question": "3 × 3.1 = ?",
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                "id": 12,
                "type": "decimals",
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                "operand1": 8.1,
                "operand2": 0.1,
                "question": "8.1 + 0.1 = ?",
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                "id": 13,
                "type": "decimals",
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                "operand1": 13.9,
                "operand2": 13.9,
                "question": "13.9 + 13.9 = ?",
                "answer": 27.8,
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                "id": 14,
                "type": "decimals",
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                "operand1": 19.7,
                "operand2": 13.9,
                "question": "19.7 - 13.9 = ?",
                "answer": 5.8,
                "correctAnswer": "5.8",
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            {
                "id": 15,
                "type": "decimals",
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                "operand1": 37.6,
                "operand2": 2,
                "question": "37.6 ÷ 2 = ?",
                "answer": 18.8,
                "correctAnswer": "18.8",
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                "id": 16,
                "type": "decimals",
                "subType": "divide",
                "operand1": 2.4,
                "operand2": 2,
                "question": "2.4 ÷ 2 = ?",
                "answer": 1.2,
                "correctAnswer": "1.2",
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                "id": 17,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 17.1,
                "operand2": 7.4,
                "question": "17.1 × 7.4 = ?",
                "answer": 126.54,
                "correctAnswer": "126.54",
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                "id": 18,
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                "operand1": 5.1,
                "operand2": 2.2,
                "question": "5.1 - 2.2 = ?",
                "answer": 2.9,
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                "id": 19,
                "type": "decimals",
                "subType": "add",
                "operand1": 19.7,
                "operand2": 15.3,
                "question": "19.7 + 15.3 = ?",
                "answer": 35,
                "correctAnswer": "35",
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                "id": 20,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 5.6,
                "operand2": 0.6,
                "question": "5.6 × 0.6 = ?",
                "answer": 3.36,
                "correctAnswer": "3.36",
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