B Set 85 Unknown

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                "operand2": 6.8,
                "question": "10.8 - 6.8 = ?",
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                "correctAnswer": "4",
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            {
                "id": 2,
                "type": "decimals",
                "subType": "divide",
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                "operand2": 5,
                "question": "89.5 ÷ 5 = ?",
                "answer": 17.9,
                "correctAnswer": "17.9",
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            {
                "id": 3,
                "type": "decimals",
                "subType": "divide",
                "operand1": 32.8,
                "operand2": 2,
                "question": "32.8 ÷ 2 = ?",
                "answer": 16.4,
                "correctAnswer": "16.4",
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            {
                "id": 4,
                "type": "decimals",
                "subType": "add",
                "operand1": 12.4,
                "operand2": 17.5,
                "question": "12.4 + 17.5 = ?",
                "answer": 29.9,
                "correctAnswer": "29.9",
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            {
                "id": 5,
                "type": "decimals",
                "subType": "add",
                "operand1": 18,
                "operand2": 8.4,
                "question": "18.0 + 8.4 = ?",
                "answer": 26.4,
                "correctAnswer": "26.4",
                "difficulty": "normal"
            },
            {
                "id": 6,
                "type": "decimals",
                "subType": "add",
                "operand1": 0.9,
                "operand2": 14.3,
                "question": "0.9 + 14.3 = ?",
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                "correctAnswer": "15.2",
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                "id": 7,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 14.2,
                "operand2": 8.4,
                "question": "14.2 × 8.4 = ?",
                "answer": 119.28,
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                "id": 8,
                "type": "decimals",
                "subType": "add",
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                "operand2": 10.4,
                "question": "13.4 + 10.4 = ?",
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                "id": 9,
                "type": "decimals",
                "subType": "divide",
                "operand1": 16.2,
                "operand2": 2,
                "question": "16.2 ÷ 2 = ?",
                "answer": 8.1,
                "correctAnswer": "8.1",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "decimals",
                "subType": "divide",
                "operand1": 102.6,
                "operand2": 9,
                "question": "102.6 ÷ 9 = ?",
                "answer": 11.4,
                "correctAnswer": "11.4",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 7,
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                "question": "7.0 - 1.1 = ?",
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                "correctAnswer": "5.9",
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                "id": 12,
                "type": "decimals",
                "subType": "divide",
                "operand1": 18,
                "operand2": 3,
                "question": "18.0 ÷ 3 = ?",
                "answer": 6,
                "correctAnswer": "6",
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            {
                "id": 13,
                "type": "decimals",
                "subType": "divide",
                "operand1": 95.2,
                "operand2": 7,
                "question": "95.2 ÷ 7 = ?",
                "answer": 13.6,
                "correctAnswer": "13.6",
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            {
                "id": 14,
                "type": "decimals",
                "subType": "divide",
                "operand1": 118.4,
                "operand2": 8,
                "question": "118.4 ÷ 8 = ?",
                "answer": 14.8,
                "correctAnswer": "14.8",
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            {
                "id": 15,
                "type": "decimals",
                "subType": "add",
                "operand1": 17.1,
                "operand2": 10.8,
                "question": "17.1 + 10.8 = ?",
                "answer": 27.9,
                "correctAnswer": "27.9",
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                "id": 16,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 7,
                "operand2": 4.7,
                "question": "7.0 - 4.7 = ?",
                "answer": 2.3,
                "correctAnswer": "2.3",
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            {
                "id": 17,
                "type": "decimals",
                "subType": "divide",
                "operand1": 53.6,
                "operand2": 4,
                "question": "53.6 ÷ 4 = ?",
                "answer": 13.4,
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            {
                "id": 18,
                "type": "decimals",
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                "operand1": 14.9,
                "operand2": 4.4,
                "question": "14.9 × 4.4 = ?",
                "answer": 65.56,
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                "id": 19,
                "type": "decimals",
                "subType": "multiply",
                "operand1": 17.7,
                "operand2": 1.4,
                "question": "17.7 × 1.4 = ?",
                "answer": 24.78,
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                "difficulty": "normal"
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                "id": 20,
                "type": "decimals",
                "subType": "subtract",
                "operand1": 12.2,
                "operand2": 10.9,
                "question": "12.2 - 10.9 = ?",
                "answer": 1.3,
                "correctAnswer": "1.3",
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