Subtraction Number Range Within 50 — Set 28

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                "operand1": 12,
                "operand2": 11,
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                "question": "12 - 11 = ___",
                "answer": 1
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            {
                "id": 4,
                "operand1": 42,
                "operand2": 2,
                "operator": "-",
                "question": "42 - 2 = ___",
                "answer": 40
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                "id": 5,
                "operand1": 39,
                "operand2": 4,
                "operator": "-",
                "question": "39 - 4 = ___",
                "answer": 35
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                "id": 6,
                "operand1": 46,
                "operand2": 30,
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                "question": "46 - 30 = ___",
                "answer": 16
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            {
                "id": 7,
                "operand1": 23,
                "operand2": 12,
                "operator": "-",
                "question": "23 - 12 = ___",
                "answer": 11
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                "id": 8,
                "operand1": 29,
                "operand2": 21,
                "operator": "-",
                "question": "29 - 21 = ___",
                "answer": 8
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                "id": 9,
                "operand1": 23,
                "operand2": 10,
                "operator": "-",
                "question": "23 - 10 = ___",
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                "id": 10,
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                "id": 12,
                "operand1": 22,
                "operand2": 12,
                "operator": "-",
                "question": "22 - 12 = ___",
                "answer": 10
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                "id": 13,
                "operand1": 38,
                "operand2": 14,
                "operator": "-",
                "question": "38 - 14 = ___",
                "answer": 24
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                "id": 14,
                "operand1": 39,
                "operand2": 3,
                "operator": "-",
                "question": "39 - 3 = ___",
                "answer": 36
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                "operand1": 19,
                "operand2": 1,
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                "question": "19 - 1 = ___",
                "answer": 18
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                "operand1": 25,
                "operand2": 5,
                "operator": "-",
                "question": "25 - 5 = ___",
                "answer": 20
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                "id": 17,
                "operand1": 38,
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                "question": "38 - 2 = ___",
                "answer": 36
            },
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                "id": 18,
                "operand1": 44,
                "operand2": 12,
                "operator": "-",
                "question": "44 - 12 = ___",
                "answer": 32
            },
            {
                "id": 19,
                "operand1": 19,
                "operand2": 7,
                "operator": "-",
                "question": "19 - 7 = ___",
                "answer": 12
            },
            {
                "id": 20,
                "operand1": 15,
                "operand2": 10,
                "operator": "-",
                "question": "15 - 10 = ___",
                "answer": 5
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