B Set 22 Unknown

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

{
    "contentData": {
        "operation": "subtraction",
        "subject": "arithmetic",
        "difficulty": "medium",
        "config": {
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            "minNumber": 0,
            "digits": 2,
            "regrouping": false,
            "operation": "subtraction",
            "missingOperand": true
        },
        "problems": [
            {
                "id": 1,
                "operand1": 38,
                "operand2": 11,
                "operator": "-",
                "question": "38 - 11 = ___",
                "answer": 27
            },
            {
                "id": 2,
                "operand1": 39,
                "operand2": 34,
                "operator": "-",
                "question": "39 - 34 = ___",
                "answer": 5
            },
            {
                "id": 3,
                "operand1": 11,
                "operand2": 10,
                "operator": "-",
                "question": "11 - 10 = ___",
                "answer": 1
            },
            {
                "id": 4,
                "operand1": 72,
                "operand2": 11,
                "operator": "-",
                "question": "72 - 11 = ___",
                "answer": 61
            },
            {
                "id": 5,
                "operand1": 54,
                "operand2": 51,
                "operator": "-",
                "question": "54 - 51 = ___",
                "answer": 3
            },
            {
                "id": 6,
                "operand1": 74,
                "operand2": 30,
                "operator": "-",
                "question": "74 - 30 = ___",
                "answer": 44
            },
            {
                "id": 7,
                "operand1": 58,
                "operand2": 42,
                "operator": "-",
                "question": "58 - 42 = ___",
                "answer": 16
            },
            {
                "id": 8,
                "operand1": 66,
                "operand2": 50,
                "operator": "-",
                "question": "66 - 50 = ___",
                "answer": 16
            },
            {
                "id": 9,
                "operand1": 29,
                "operand2": 12,
                "operator": "-",
                "question": "29 - 12 = ___",
                "answer": 17
            },
            {
                "id": 10,
                "operand1": 59,
                "operand2": 10,
                "operator": "-",
                "question": "59 - 10 = ___",
                "answer": 49
            },
            {
                "id": 11,
                "operand1": 99,
                "operand2": 84,
                "operator": "-",
                "question": "99 - 84 = ___",
                "answer": 15
            },
            {
                "id": 12,
                "operand1": 71,
                "operand2": 30,
                "operator": "-",
                "question": "71 - 30 = ___",
                "answer": 41
            },
            {
                "id": 13,
                "operand1": 34,
                "operand2": 33,
                "operator": "-",
                "question": "34 - 33 = ___",
                "answer": 1
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            {
                "id": 14,
                "operand1": 58,
                "operand2": 46,
                "operator": "-",
                "question": "58 - 46 = ___",
                "answer": 12
            },
            {
                "id": 15,
                "operand1": 79,
                "operand2": 38,
                "operator": "-",
                "question": "79 - 38 = ___",
                "answer": 41
            },
            {
                "id": 16,
                "operand1": 19,
                "operand2": 10,
                "operator": "-",
                "question": "19 - 10 = ___",
                "answer": 9
            },
            {
                "id": 17,
                "operand1": 98,
                "operand2": 11,
                "operator": "-",
                "question": "98 - 11 = ___",
                "answer": 87
            },
            {
                "id": 18,
                "operand1": 96,
                "operand2": 63,
                "operator": "-",
                "question": "96 - 63 = ___",
                "answer": 33
            },
            {
                "id": 19,
                "operand1": 97,
                "operand2": 40,
                "operator": "-",
                "question": "97 - 40 = ___",
                "answer": 57
            },
            {
                "id": 20,
                "operand1": 15,
                "operand2": 12,
                "operator": "-",
                "question": "15 - 12 = ___",
                "answer": 3
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
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    },
    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
}