B Set 87 Unknown

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                "operand2": 7,
                "question": "26.6 ÷ 7 = ?",
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                "id": 2,
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                "question": "16.8 - 5.9 = ?",
                "answer": 10.9,
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            {
                "id": 3,
                "type": "decimals",
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                "operand2": 2.8,
                "question": "7.9 - 2.8 = ?",
                "answer": 5.1,
                "correctAnswer": "5.1",
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            {
                "id": 4,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 3.5,
                "operand2": 6,
                "question": "3.5 × 6 = ?",
                "answer": 21,
                "correctAnswer": "21",
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                "id": 5,
                "type": "decimals",
                "subType": "add",
                "operand1": 16.8,
                "operand2": 11.1,
                "question": "16.8 + 11.1 = ?",
                "answer": 27.9,
                "correctAnswer": "27.9",
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                "id": 6,
                "type": "decimals",
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                "operand1": 11.1,
                "operand2": 9.2,
                "question": "11.1 × 9.2 = ?",
                "answer": 102.12,
                "correctAnswer": "102.12",
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                "id": 7,
                "type": "decimals",
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                "operand1": 7,
                "operand2": 5.7,
                "question": "7.0 - 5.7 = ?",
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                "id": 8,
                "type": "decimals",
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                "operand2": 5,
                "question": "10.8 + 5.0 = ?",
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                "id": 9,
                "type": "decimals",
                "subType": "add",
                "operand1": 0.7,
                "operand2": 15.5,
                "question": "0.7 + 15.5 = ?",
                "answer": 16.2,
                "correctAnswer": "16.2",
                "difficulty": "normal"
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                "id": 10,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 16.4,
                "operand2": 2.6,
                "question": "16.4 × 2.6 = ?",
                "answer": 42.64,
                "correctAnswer": "42.64",
                "difficulty": "normal"
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                "id": 11,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 2.1,
                "operand2": 7.8,
                "question": "2.1 × 7.8 = ?",
                "answer": 16.38,
                "correctAnswer": "16.38",
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                "id": 12,
                "type": "decimals",
                "subType": "add",
                "operand1": 3.4,
                "operand2": 5.9,
                "question": "3.4 + 5.9 = ?",
                "answer": 9.3,
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                "id": 13,
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                "operand1": 11.6,
                "operand2": 11.2,
                "question": "11.6 - 11.2 = ?",
                "answer": 0.4,
                "correctAnswer": "0.4",
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                "id": 14,
                "type": "decimals",
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                "operand1": 19.6,
                "operand2": 5.5,
                "question": "19.6 - 5.5 = ?",
                "answer": 14.1,
                "correctAnswer": "14.1",
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                "id": 15,
                "type": "decimals",
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                "operand1": 9.6,
                "operand2": 1.9,
                "question": "9.6 - 1.9 = ?",
                "answer": 7.7,
                "correctAnswer": "7.7",
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            {
                "id": 16,
                "type": "decimals",
                "subType": "divide",
                "operand1": 11.8,
                "operand2": 2,
                "question": "11.8 ÷ 2 = ?",
                "answer": 5.9,
                "correctAnswer": "5.9",
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                "id": 17,
                "type": "decimals",
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                "operand1": 18.4,
                "operand2": 0.7,
                "question": "18.4 × 0.7 = ?",
                "answer": 12.88,
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                "id": 18,
                "type": "decimals",
                "subType": "add",
                "operand1": 10.1,
                "operand2": 10.6,
                "question": "10.1 + 10.6 = ?",
                "answer": 20.7,
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                "id": 19,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 2.3,
                "operand2": 6.6,
                "question": "2.3 × 6.6 = ?",
                "answer": 15.18,
                "correctAnswer": "15.18",
                "difficulty": "normal"
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                "id": 20,
                "type": "decimals",
                "subType": "add",
                "operand1": 1.2,
                "operand2": 8.2,
                "question": "1.2 + 8.2 = ?",
                "answer": 9.4,
                "correctAnswer": "9.4",
                "difficulty": "normal"
            }
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