B Set 1 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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        "problems": [
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                "operand2": 121,
                "operator": "+",
                "question": "446 + 121 = ___",
                "answer": 567
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                "question": "314 + 403 = ___",
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                "question": "222 + 350 = ___",
                "answer": 572
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                "question": "492 + 105 = ___",
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                "question": "233 + 636 = ___",
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                "question": "40 + 819 = ___",
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