B Set 19 Unknown

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                "id": 1,
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                "subType": "divide",
                "operand1": 44.1,
                "operand2": 3,
                "question": "44.1 ÷ 3 = ?",
                "answer": 14.7,
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                "id": 2,
                "type": "decimals",
                "subType": "divide",
                "operand1": 33,
                "operand2": 6,
                "question": "33.0 ÷ 6 = ?",
                "answer": 5.5,
                "correctAnswer": "5.5",
                "difficulty": "normal"
            },
            {
                "id": 3,
                "type": "decimals",
                "subType": "divide",
                "operand1": 15.4,
                "operand2": 2,
                "question": "15.4 ÷ 2 = ?",
                "answer": 7.7,
                "correctAnswer": "7.7",
                "difficulty": "normal"
            },
            {
                "id": 4,
                "type": "decimals",
                "subType": "divide",
                "operand1": 41.2,
                "operand2": 4,
                "question": "41.2 ÷ 4 = ?",
                "answer": 10.3,
                "correctAnswer": "10.3",
                "difficulty": "normal"
            },
            {
                "id": 5,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 18.6,
                "operand2": 2.6,
                "question": "18.6 × 2.6 = ?",
                "answer": 48.36,
                "correctAnswer": "48.36",
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                "id": 6,
                "type": "decimals",
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                "operand2": 3.8,
                "question": "18.1 - 3.8 = ?",
                "answer": 14.3,
                "correctAnswer": "14.3",
                "difficulty": "normal"
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                "id": 7,
                "type": "decimals",
                "subType": "add",
                "operand1": 13.3,
                "operand2": 4,
                "question": "13.3 + 4.0 = ?",
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                "id": 8,
                "type": "decimals",
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                "operand2": 3,
                "question": "13.8 ÷ 3 = ?",
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                "id": 9,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 7.9,
                "operand2": 1.2,
                "question": "7.9 × 1.2 = ?",
                "answer": 9.48,
                "correctAnswer": "9.48",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "decimals",
                "subType": "divide",
                "operand1": 201,
                "operand2": 10,
                "question": "201.0 ÷ 10 = ?",
                "answer": 20.1,
                "correctAnswer": "20.1",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "decimals",
                "subType": "add",
                "operand1": 2.9,
                "operand2": 8.4,
                "question": "2.9 + 8.4 = ?",
                "answer": 11.3,
                "correctAnswer": "11.3",
                "difficulty": "normal"
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            {
                "id": 12,
                "type": "decimals",
                "subType": "divide",
                "operand1": 128.8,
                "operand2": 8,
                "question": "128.8 ÷ 8 = ?",
                "answer": 16.1,
                "correctAnswer": "16.1",
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                "id": 13,
                "type": "decimals",
                "subType": "add",
                "operand1": 17.5,
                "operand2": 11.9,
                "question": "17.5 + 11.9 = ?",
                "answer": 29.4,
                "correctAnswer": "29.4",
                "difficulty": "normal"
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                "id": 14,
                "type": "decimals",
                "subType": "add",
                "operand1": 5.4,
                "operand2": 9.1,
                "question": "5.4 + 9.1 = ?",
                "answer": 14.5,
                "correctAnswer": "14.5",
                "difficulty": "normal"
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            {
                "id": 15,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 9,
                "operand2": 0.6,
                "question": "9.0 - 0.6 = ?",
                "answer": 8.4,
                "correctAnswer": "8.4",
                "difficulty": "normal"
            },
            {
                "id": 16,
                "type": "decimals",
                "subType": "add",
                "operand1": 1.8,
                "operand2": 2.9,
                "question": "1.8 + 2.9 = ?",
                "answer": 4.7,
                "correctAnswer": "4.7",
                "difficulty": "normal"
            },
            {
                "id": 17,
                "type": "decimals",
                "subType": "divide",
                "operand1": 66.8,
                "operand2": 4,
                "question": "66.8 ÷ 4 = ?",
                "answer": 16.7,
                "correctAnswer": "16.7",
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                "id": 18,
                "type": "decimals",
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                "operand1": 4.4,
                "operand2": 2.6,
                "question": "4.4 - 2.6 = ?",
                "answer": 1.8,
                "correctAnswer": "1.8",
                "difficulty": "normal"
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            {
                "id": 19,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 14.2,
                "operand2": 9.1,
                "question": "14.2 - 9.1 = ?",
                "answer": 5.1,
                "correctAnswer": "5.1",
                "difficulty": "normal"
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                "id": 20,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 14.3,
                "operand2": 7.1,
                "question": "14.3 - 7.1 = ?",
                "answer": 7.2,
                "correctAnswer": "7.2",
                "difficulty": "normal"
            }
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