B Set 19 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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        "operation": "math-bingo",
        "subject": "arithmetic",
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        "problems": [
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                "type": "math-bingo",
                "subType": "math-bingo",
                "difficulty": "medium",
                "question": "Math Bingo! Solve: 11 + 20 = ? Mark the answer on the bingo card. Card rows: RED: [13, 32, 34, 11]; BLUE: [35, 10, 8, 28]; GREEN: [23, 6, 2, 16]; YELLOW: [26, 31, 9, 7]",
                "answer": "31",
                "expression": "11 + 20",
                "target": 31,
                "card": [
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                        32,
                        34,
                        11
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                    [
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                        10,
                        8,
                        28
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                    [
                        23,
                        6,
                        2,
                        16
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                        26,
                        31,
                        9,
                        7
                    ]
                ]
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            "problemsPerPage": 20
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    "_archetype": "form-exercise",
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