medium Set 11 Form Exercise

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        "difficulty": {
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            "computedScore": 26,
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                "problemCount": 8,
                "operation": "math-match",
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    "operation": "math-match",
    "subject": "arithmetic",
    "difficulty": "medium",
    "config": {
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    "problems": [
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            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "4-2",
                    "value": 2
                },
                {
                    "expr": "6-6",
                    "value": 0
                },
                {
                    "expr": "2x8",
                    "value": 16
                },
                {
                    "expr": "1+5",
                    "value": 6
                },
                {
                    "expr": "5x5",
                    "value": 25
                }
            ],
            "answer": "4-2=2; 6-6=0; 2x8=16; 1+5=6; 5x5=25",
            "question": "Match each expression with its answer: 4-2=?, 6-6=?, 2x8=?, 1+5=?, 5x5=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "9-7",
                    "value": 2
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                {
                    "expr": "5+4",
                    "value": 9
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                {
                    "expr": "8+10",
                    "value": 18
                },
                {
                    "expr": "2-1",
                    "value": 1
                },
                {
                    "expr": "3+1",
                    "value": 4
                }
            ],
            "answer": "9-7=2; 5+4=9; 8+10=18; 2-1=1; 3+1=4",
            "question": "Match each expression with its answer: 9-7=?, 5+4=?, 8+10=?, 2-1=?, 3+1=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "6+9",
                    "value": 15
                },
                {
                    "expr": "6x6",
                    "value": 36
                },
                {
                    "expr": "4+1",
                    "value": 5
                },
                {
                    "expr": "8x3",
                    "value": 24
                },
                {
                    "expr": "8-6",
                    "value": 2
                }
            ],
            "answer": "6+9=15; 6x6=36; 4+1=5; 8x3=24; 8-6=2",
            "question": "Match each expression with its answer: 6+9=?, 6x6=?, 4+1=?, 8x3=?, 8-6=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "1+1",
                    "value": 2
                },
                {
                    "expr": "10-2",
                    "value": 8
                },
                {
                    "expr": "3x8",
                    "value": 24
                },
                {
                    "expr": "3x7",
                    "value": 21
                },
                {
                    "expr": "8+6",
                    "value": 14
                }
            ],
            "answer": "1+1=2; 10-2=8; 3x8=24; 3x7=21; 8+6=14",
            "question": "Match each expression with its answer: 1+1=?, 10-2=?, 3x8=?, 3x7=?, 8+6=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "9-7",
                    "value": 2
                },
                {
                    "expr": "4x6",
                    "value": 24
                },
                {
                    "expr": "3+2",
                    "value": 5
                },
                {
                    "expr": "7-1",
                    "value": 6
                },
                {
                    "expr": "3+4",
                    "value": 7
                }
            ],
            "answer": "9-7=2; 4x6=24; 3+2=5; 7-1=6; 3+4=7",
            "question": "Match each expression with its answer: 9-7=?, 4x6=?, 3+2=?, 7-1=?, 3+4=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "2+7",
                    "value": 9
                },
                {
                    "expr": "9-5",
                    "value": 4
                },
                {
                    "expr": "4-1",
                    "value": 3
                },
                {
                    "expr": "8-3",
                    "value": 5
                },
                {
                    "expr": "5+3",
                    "value": 8
                }
            ],
            "answer": "2+7=9; 9-5=4; 4-1=3; 8-3=5; 5+3=8",
            "question": "Match each expression with its answer: 2+7=?, 9-5=?, 4-1=?, 8-3=?, 5+3=?",
            "difficulty": "medium"
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        {
            "type": "math-match",
            "subType": "math-match",
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                {
                    "expr": "9x3",
                    "value": 27
                },
                {
                    "expr": "2x6",
                    "value": 12
                },
                {
                    "expr": "3+4",
                    "value": 7
                },
                {
                    "expr": "8-3",
                    "value": 5
                },
                {
                    "expr": "3-1",
                    "value": 2
                }
            ],
            "answer": "9x3=27; 2x6=12; 3+4=7; 8-3=5; 3-1=2",
            "question": "Match each expression with its answer: 9x3=?, 2x6=?, 3+4=?, 8-3=?, 3-1=?",
            "difficulty": "medium"
        },
        {
            "type": "math-match",
            "subType": "math-match",
            "pairs": [
                {
                    "expr": "8-6",
                    "value": 2
                },
                {
                    "expr": "8+3",
                    "value": 11
                },
                {
                    "expr": "8x7",
                    "value": 56
                },
                {
                    "expr": "4x7",
                    "value": 28
                },
                {
                    "expr": "4x9",
                    "value": 36
                }
            ],
            "answer": "8-6=2; 8+3=11; 8x7=56; 4x7=28; 4x9=36",
            "question": "Match each expression with its answer: 8-6=?, 8+3=?, 8x7=?, 4x7=?, 4x9=?",
            "difficulty": "medium"
        }
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