B Set 58 Unknown

This page uses a content type that does not have a custom renderer yet. Raw structured data is shown below.

{
    "contentData": {
        "operation": "missing-operator",
        "subject": "arithmetic",
        "difficulty": "easy",
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        "problems": [
            {
                "id": 1,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 9,
                "operand2": 4,
                "result": 13,
                "question": "9 __ 4 = 13",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
            },
            {
                "id": 2,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 3,
                "operand2": 9,
                "result": 27,
                "question": "3 ○ 9 = 27, what is ○?",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 3,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 4,
                "operand2": 2,
                "result": 6,
                "question": "4 __ 2 = 6",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
            },
            {
                "id": 4,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 4,
                "operand2": 7,
                "result": 28,
                "question": "4 ○ 7 = 28, what is ○?",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 5,
                "type": "missing-operator",
                "subType": "-",
                "operand1": 9,
                "operand2": 4,
                "result": 5,
                "question": "9 __ 4 = 5",
                "answer": "-",
                "correctAnswer": "-",
                "difficulty": "normal"
            },
            {
                "id": 6,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 10,
                "operand2": 2,
                "result": 20,
                "question": "10 __ 2 = 20",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 7,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 4,
                "operand2": 7,
                "result": 11,
                "question": "4 ○ 7 = 11, what is ○?",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
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            {
                "id": 8,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 10,
                "operand2": 4,
                "result": 14,
                "question": "10 ○ 4 = 14, what is ○?",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
            },
            {
                "id": 9,
                "type": "missing-operator",
                "subType": "÷",
                "operand1": 90,
                "operand2": 9,
                "result": 10,
                "question": "90 ○ 9 = 10, what is ○?",
                "answer": "÷",
                "correctAnswer": "÷",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 9,
                "operand2": 2,
                "result": 18,
                "question": "9 ○ 2 = 18, what is ○?",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "missing-operator",
                "subType": "-",
                "operand1": 16,
                "operand2": 9,
                "result": 7,
                "question": "16 __ 9 = 7",
                "answer": "-",
                "correctAnswer": "-",
                "difficulty": "normal"
            },
            {
                "id": 12,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 5,
                "operand2": 7,
                "result": 12,
                "question": "5 __ 7 = 12",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
            },
            {
                "id": 13,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 4,
                "operand2": 8,
                "result": 32,
                "question": "4 ○ 8 = 32, what is ○?",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 14,
                "type": "missing-operator",
                "subType": "÷",
                "operand1": 54,
                "operand2": 6,
                "result": 9,
                "question": "54 __ 6 = 9",
                "answer": "÷",
                "correctAnswer": "÷",
                "difficulty": "normal"
            },
            {
                "id": 15,
                "type": "missing-operator",
                "subType": "+",
                "operand1": 5,
                "operand2": 3,
                "result": 8,
                "question": "5 ○ 3 = 8, what is ○?",
                "answer": "+",
                "correctAnswer": "+",
                "difficulty": "normal"
            },
            {
                "id": 16,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 9,
                "operand2": 9,
                "result": 81,
                "question": "9 ○ 9 = 81, what is ○?",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 18,
                "type": "missing-operator",
                "subType": "×",
                "operand1": 4,
                "operand2": 4,
                "result": 16,
                "question": "4 __ 4 = 16",
                "answer": "×",
                "correctAnswer": "×",
                "difficulty": "normal"
            },
            {
                "id": 19,
                "type": "missing-operator",
                "subType": "÷",
                "operand1": 36,
                "operand2": 9,
                "result": 4,
                "question": "36 __ 9 = 4",
                "answer": "÷",
                "correctAnswer": "÷",
                "difficulty": "normal"
            },
            {
                "id": 20,
                "type": "missing-operator",
                "subType": "÷",
                "operand1": 35,
                "operand2": 7,
                "result": 5,
                "question": "35 __ 7 = 5",
                "answer": "÷",
                "correctAnswer": "÷",
                "difficulty": "normal"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
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    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
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