B Set 15 Unknown

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                "question": "Mia had 8 toys and gave away 7. How many toys does Mia have left?",
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                "question": "Sam had 9 marbles. A friend gave Sam 8 more marbles. How many marbles does Sam have in all?",
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                "id": 4,
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                "question": "Sam had 2 apples and sold 1 of them. How many apples does Sam have remaining?",
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                "id": 5,
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                "subType": "multiplication",
                "question": "Lisa has 2 bags with 10 cards in each bag. How many cards does Lisa have in all?",
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                "correctAnswer": "20",
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                "id": 6,
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                "question": "Liam had 10 pencils. A friend gave Liam 9 more pencils. How many pencils does Liam have in all?",
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                "id": 8,
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                "question": "Sofia has 2 marbles and gets 9 more. How many marbles does Sofia have now?",
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                "correctAnswer": "11",
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                "id": 9,
                "type": "word-problems",
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                "question": "Sofia had 9 books. A friend gave Sofia 9 more books. How many books does Sofia have in all?",
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                "difficulty": "normal"
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                "id": 10,
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                "question": "Jake had 4 grapes. A friend gave Jake 7 more grapes. How many grapes does Jake have in all?",
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                "id": 12,
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                "question": "Mia had 7 apples. A friend gave Mia 9 more apples. How many apples does Mia have in all?",
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                "id": 13,
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                "subType": "subtraction",
                "question": "Jake had 8 pencils and gave away 2. How many pencils does Jake have left?",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "normal"
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                "id": 14,
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                "subType": "addition",
                "question": "Emma put 1 oranges in a basket and added 8 more. How many oranges are in the basket in total?",
                "answer": 9,
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                "id": 15,
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                "subType": "subtraction",
                "question": "Liam had 3 pencils and gave away 2. How many pencils does Liam have left?",
                "answer": 1,
                "correctAnswer": "1",
                "difficulty": "normal"
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                "id": 16,
                "type": "word-problems",
                "subType": "subtraction",
                "question": "Emma bought 4 pencils but lost 3 of them. How many pencils does Emma have now?",
                "answer": 1,
                "correctAnswer": "1",
                "difficulty": "normal"
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                "id": 17,
                "type": "word-problems",
                "subType": "subtraction",
                "question": "Sam had 8 toys and sold 5 of them. How many toys does Sam have remaining?",
                "answer": 3,
                "correctAnswer": "3",
                "difficulty": "normal"
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                "id": 18,
                "type": "word-problems",
                "subType": "multiplication",
                "question": "Emma bought 7 boxes. Each box has 9 oranges. How many oranges does Emma have in total?",
                "answer": 63,
                "correctAnswer": "63",
                "difficulty": "normal"
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                "id": 19,
                "type": "word-problems",
                "subType": "addition",
                "question": "Lisa has 6 stickers and gets 5 more. How many stickers does Lisa have now?",
                "answer": 11,
                "correctAnswer": "11",
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                "id": 20,
                "type": "word-problems",
                "subType": "subtraction",
                "question": "Ava had 10 cookies and gave away 7. How many cookies does Ava have left?",
                "answer": 3,
                "correctAnswer": "3",
                "difficulty": "normal"
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