Subtraction Number Range Within 75 — Set 58

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        "subject": "arithmetic",
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        "config": {
            "maxNumber": 75,
            "regrouping": false,
            "operation": "subtraction",
            "maxSum": 75
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        "problems": [
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                "id": 1,
                "operand1": 66,
                "operand2": 42,
                "operator": "-",
                "question": "66 - 42 = ___",
                "answer": 24
            },
            {
                "id": 2,
                "operand1": 43,
                "operand2": 33,
                "operator": "-",
                "question": "43 - 33 = ___",
                "answer": 10
            },
            {
                "id": 3,
                "operand1": 61,
                "operand2": 51,
                "operator": "-",
                "question": "61 - 51 = ___",
                "answer": 10
            },
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                "operand1": 3,
                "operand2": 1,
                "operator": "-",
                "question": "3 - 1 = ___",
                "answer": 2,
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                            "role": "groupA"
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                    "crossedCount": 1
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            },
            {
                "id": 5,
                "operand1": 17,
                "operand2": 12,
                "operator": "-",
                "question": "17 - 12 = ___",
                "answer": 5
            },
            {
                "id": 6,
                "operand1": 59,
                "operand2": 32,
                "operator": "-",
                "question": "59 - 32 = ___",
                "answer": 27
            },
            {
                "id": 7,
                "operand1": 37,
                "operand2": 32,
                "operator": "-",
                "question": "37 - 32 = ___",
                "answer": 5
            },
            {
                "id": 8,
                "operand1": 7,
                "operand2": 2,
                "operator": "-",
                "question": "7 - 2 = ___",
                "answer": 5,
                "visualIntent": {
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                    "crossedCount": 2
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            {
                "id": 9,
                "operand1": 56,
                "operand2": 33,
                "operator": "-",
                "question": "56 - 33 = ___",
                "answer": 23
            },
            {
                "id": 10,
                "operand1": 36,
                "operand2": 24,
                "operator": "-",
                "question": "36 - 24 = ___",
                "answer": 12
            },
            {
                "id": 11,
                "operand1": 17,
                "operand2": 15,
                "operator": "-",
                "question": "17 - 15 = ___",
                "answer": 2
            },
            {
                "id": 12,
                "operand1": 9,
                "operand2": 3,
                "operator": "-",
                "question": "9 - 3 = ___",
                "answer": 6,
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                    "crossedCount": 3
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            },
            {
                "id": 13,
                "operand1": 42,
                "operand2": 30,
                "operator": "-",
                "question": "42 - 30 = ___",
                "answer": 12
            },
            {
                "id": 14,
                "operand1": 41,
                "operand2": 30,
                "operator": "-",
                "question": "41 - 30 = ___",
                "answer": 11
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            {
                "id": 15,
                "operand1": 45,
                "operand2": 43,
                "operator": "-",
                "question": "45 - 43 = ___",
                "answer": 2
            },
            {
                "id": 16,
                "operand1": 58,
                "operand2": 20,
                "operator": "-",
                "question": "58 - 20 = ___",
                "answer": 38
            },
            {
                "id": 17,
                "operand1": 59,
                "operand2": 39,
                "operator": "-",
                "question": "59 - 39 = ___",
                "answer": 20
            },
            {
                "id": 18,
                "operand1": 32,
                "operand2": 11,
                "operator": "-",
                "question": "32 - 11 = ___",
                "answer": 21
            },
            {
                "id": 19,
                "operand1": 71,
                "operand2": 20,
                "operator": "-",
                "question": "71 - 20 = ___",
                "answer": 51
            },
            {
                "id": 20,
                "operand1": 68,
                "operand2": 16,
                "operator": "-",
                "question": "68 - 16 = ___",
                "answer": 52
            }
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    "_archetype": "form-exercise",
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