B Set 75 Unknown

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{
    "contentData": {
        "operation": "multiplication",
        "subject": "arithmetic",
        "difficulty": "medium",
        "config": {
            "maxNumber": 12,
            "regrouping": false,
            "operation": "multiplication",
            "factorMin": 2,
            "factorMax": 9,
            "properties": true
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        "problems": [
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                "id": 1,
                "type": "commutative",
                "question": "11 × 12 = 12 × ___",
                "answer": "11",
                "correctAnswer": "11",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 2,
                "type": "associative",
                "question": "(3 × 4) × 5 = 3 × (4 × ___)",
                "answer": "5",
                "correctAnswer": "5",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 3,
                "type": "commutative",
                "question": "13 × 2 = 2 × ___",
                "answer": "13",
                "correctAnswer": "13",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 4,
                "type": "associative",
                "question": "(2 × 3) × 4 = 2 × (3 × ___)",
                "answer": "4",
                "correctAnswer": "4",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 5,
                "type": "commutative",
                "question": "3 × 4 = 4 × ___",
                "answer": "3",
                "correctAnswer": "3",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 6,
                "type": "associative",
                "question": "(10 × 2) × 3 = 10 × (2 × ___)",
                "answer": "3",
                "correctAnswer": "3",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 7,
                "type": "commutative",
                "question": "5 × 6 = 6 × ___",
                "answer": "5",
                "correctAnswer": "5",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 8,
                "type": "associative",
                "question": "(9 × 10) × 2 = 9 × (10 × ___)",
                "answer": "2",
                "correctAnswer": "2",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 9,
                "type": "commutative",
                "question": "7 × 8 = 8 × ___",
                "answer": "7",
                "correctAnswer": "7",
                "hint": "Commutative property: order does not change the product"
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            {
                "id": 10,
                "type": "associative",
                "question": "(8 × 9) × 10 = 8 × (9 × ___)",
                "answer": "10",
                "correctAnswer": "10",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 11,
                "type": "associative",
                "question": "(6 × 7) × 8 = 6 × (7 × ___)",
                "answer": "8",
                "correctAnswer": "8",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 12,
                "type": "commutative",
                "question": "7 × 8 = 8 × ___",
                "answer": "7",
                "correctAnswer": "7",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 13,
                "type": "associative",
                "question": "(5 × 6) × 7 = 5 × (6 × ___)",
                "answer": "7",
                "correctAnswer": "7",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 14,
                "type": "commutative",
                "question": "9 × 10 = 10 × ___",
                "answer": "9",
                "correctAnswer": "9",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 15,
                "type": "associative",
                "question": "(4 × 5) × 6 = 4 × (5 × ___)",
                "answer": "6",
                "correctAnswer": "6",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 16,
                "type": "commutative",
                "question": "11 × 12 = 12 × ___",
                "answer": "11",
                "correctAnswer": "11",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 17,
                "type": "associative",
                "question": "(3 × 4) × 5 = 3 × (4 × ___)",
                "answer": "5",
                "correctAnswer": "5",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 18,
                "type": "commutative",
                "question": "13 × 2 = 2 × ___",
                "answer": "13",
                "correctAnswer": "13",
                "hint": "Commutative property: order does not change the product"
            },
            {
                "id": 19,
                "type": "associative",
                "question": "(2 × 3) × 4 = 2 × (3 × ___)",
                "answer": "4",
                "correctAnswer": "4",
                "hint": "Associative property: grouping does not change the product"
            },
            {
                "id": 20,
                "type": "commutative",
                "question": "3 × 4 = 4 × ___",
                "answer": "3",
                "correctAnswer": "3",
                "hint": "Commutative property: order does not change the product"
            }
        ],
        "layout": {
            "columns": 2,
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    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
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