B Set 67 Unknown

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                "id": 12,
                "type": "balance-scale",
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                "question": "If left side = 7 × 2, what does the right side equal to balance the scale?",
                "answer": 14,
                "correctAnswer": "14",
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                "id": 13,
                "type": "balance-scale",
                "subType": "multiplication-balance",
                "question": "If left side = 2 × 9, what does the right side equal to balance the scale?",
                "answer": 18,
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                "id": 15,
                "type": "balance-scale",
                "subType": "multiplication-balance",
                "question": "If left side = 10 × 3, what does the right side equal to balance the scale?",
                "answer": 30,
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                "id": 19,
                "type": "balance-scale",
                "subType": "multiplication-balance",
                "question": "If left side = 4 × 3, what does the right side equal to balance the scale?",
                "answer": 12,
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                "difficulty": "medium"
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                "id": 20,
                "type": "balance-scale",
                "subType": "equal-expressions",
                "question": "Balance the scale: 2 + 10 = 11 + ?",
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