B Set 22 Unknown

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

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        "subject": "arithmetic",
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                "operator": "-",
                "question": "89 - 62 = ___",
                "answer": 27
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                "operator": "-",
                "question": "68 - 23 = ___",
                "answer": 45
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                "operator": "-",
                "question": "7 - 3 = ___",
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            {
                "id": 4,
                "operand1": 25,
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                "operator": "-",
                "question": "25 - 12 = ___",
                "answer": 13
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                "question": "38 - 22 = ___",
                "answer": 16
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                "operator": "-",
                "question": "59 - 39 = ___",
                "answer": 20
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                "question": "9 - 1 = ___",
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                "id": 8,
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                "question": "45 - 10 = ___",
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                "answer": 95
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                "question": "88 - 41 = ___",
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                "question": "24 - 20 = ___",
                "answer": 4
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    "_archetype": "form-exercise",
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