easy Set 76 Form Exercise

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                    "expr": "4x4",
                    "value": 16
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                {
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                {
                    "expr": "4-4",
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            "answer": "4x4=16; 10-7=3; 8-3=5; 4-4=0",
            "question": "Match each expression with its answer: 4x4=?, 10-7=?, 8-3=?, 4-4=?",
            "difficulty": "easy"
        },
        {
            "type": "math-match",
            "subType": "math-match",
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            "answer": "2x8=16; 8+2=10; 7+1=8; 5x7=35",
            "question": "Match each expression with its answer: 2x8=?, 8+2=?, 7+1=?, 5x7=?",
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            "pairs": [
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                    "expr": "3x9",
                    "value": 27
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                    "expr": "8x9",
                    "value": 72
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                    "expr": "5-3",
                    "value": 2
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                    "expr": "3+2",
                    "value": 5
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            "answer": "3x9=27; 8x9=72; 5-3=2; 3+2=5",
            "question": "Match each expression with its answer: 3x9=?, 8x9=?, 5-3=?, 3+2=?",
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                    "expr": "5-3",
                    "value": 2
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                    "value": 7
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                {
                    "expr": "7-6",
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            "question": "Match each expression with its answer: 5-3=?, 9-6=?, 6+1=?, 7-6=?",
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            "type": "math-match",
            "subType": "math-match",
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                    "expr": "3x8",
                    "value": 24
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                {
                    "expr": "5x2",
                    "value": 10
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                {
                    "expr": "3x2",
                    "value": 6
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                {
                    "expr": "10-2",
                    "value": 8
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            ],
            "answer": "3x8=24; 5x2=10; 3x2=6; 10-2=8",
            "question": "Match each expression with its answer: 3x8=?, 5x2=?, 3x2=?, 10-2=?",
            "difficulty": "easy"
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                    "expr": "6+5",
                    "value": 11
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                    "expr": "5-1",
                    "value": 4
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                    "expr": "8+2",
                    "value": 10
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                {
                    "expr": "6+6",
                    "value": 12
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            "question": "Match each expression with its answer: 6+5=?, 5-1=?, 8+2=?, 6+6=?",
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                    "expr": "6+1",
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                    "expr": "10+5",
                    "value": 15
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            "question": "Match each expression with its answer: 6+1=?, 6-2=?, 8x2=?, 10+5=?",
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                    "value": 0
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                    "expr": "6-1",
                    "value": 5
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            "answer": "5-4=1; 8x5=40; 5-5=0; 6-1=5",
            "question": "Match each expression with its answer: 5-4=?, 8x5=?, 5-5=?, 6-1=?",
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