B Set 21 Unknown

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