Counting 1 To 100 — Set 57

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        "operation": "counting",
        "subject": "arithmetic",
        "difficulty": "medium",
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        "problems": [
            {
                "id": 1,
                "type": "counting",
                "subType": "what-comes-next",
                "question": "What comes after 39?",
                "answer": 40,
                "correctAnswer": "40",
                "difficulty": "normal"
            },
            {
                "id": 2,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 3s: 9, 12, 15, 18, __",
                "answer": 21,
                "correctAnswer": "21",
                "difficulty": "normal"
            },
            {
                "id": 3,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 10s: 30, 40, 50, 60, __",
                "answer": 70,
                "correctAnswer": "70",
                "difficulty": "normal"
            },
            {
                "id": 4,
                "type": "counting",
                "subType": "count-objects",
                "question": "Count the stars: How many are there? (47 stars)",
                "answer": 47,
                "correctAnswer": "47",
                "difficulty": "normal"
            },
            {
                "id": 5,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 5s: 10, 15, 20, 25, __",
                "answer": 30,
                "correctAnswer": "30",
                "difficulty": "normal"
            },
            {
                "id": 6,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 10s: 20, 30, 40, 50, __",
                "answer": 60,
                "correctAnswer": "60",
                "difficulty": "normal"
            },
            {
                "id": 7,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 3s: 42, 45, 48, 51, __",
                "answer": 54,
                "correctAnswer": "54",
                "difficulty": "normal"
            },
            {
                "id": 8,
                "type": "counting",
                "subType": "skip-counting",
                "question": "What is the next number in the sequence? 12, 14, 16, __, 20",
                "answer": 18,
                "correctAnswer": "18",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "counting",
                "subType": "count-objects",
                "question": "Count the dots: How many are there? (24 dots)",
                "answer": 24,
                "correctAnswer": "24",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "counting",
                "subType": "what-comes-next",
                "question": "What comes after 12?",
                "answer": 13,
                "correctAnswer": "13",
                "difficulty": "normal"
            },
            {
                "id": 12,
                "type": "counting",
                "subType": "count-objects",
                "question": "Count the hearts: How many are there? (1 hearts)",
                "answer": 1,
                "correctAnswer": "1",
                "difficulty": "normal"
            },
            {
                "id": 13,
                "type": "counting",
                "subType": "skip-counting",
                "question": "What is the next number in the sequence? 10, 20, 30, __, 50",
                "answer": 40,
                "correctAnswer": "40",
                "difficulty": "normal"
            },
            {
                "id": 14,
                "type": "counting",
                "subType": "what-comes-next",
                "question": "What comes after 51?",
                "answer": 52,
                "correctAnswer": "52",
                "difficulty": "normal"
            },
            {
                "id": 15,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 2s: 32, 34, 36, 38, __",
                "answer": 40,
                "correctAnswer": "40",
                "difficulty": "normal"
            },
            {
                "id": 16,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 2s: 8, 10, 12, 14, __",
                "answer": 16,
                "correctAnswer": "16",
                "difficulty": "normal"
            },
            {
                "id": 17,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 10s: 50, 60, 70, 80, __",
                "answer": 90,
                "correctAnswer": "90",
                "difficulty": "normal"
            },
            {
                "id": 18,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 3s: 27, 30, 33, 36, __",
                "answer": 39,
                "correctAnswer": "39",
                "difficulty": "normal"
            },
            {
                "id": 19,
                "type": "counting",
                "subType": "count-objects",
                "question": "Count the apples: How many are there? (89 apples)",
                "answer": 89,
                "correctAnswer": "89",
                "difficulty": "normal"
            },
            {
                "id": 20,
                "type": "counting",
                "subType": "count-by",
                "question": "Count by 3s: 36, 39, 42, 45, __",
                "answer": 48,
                "correctAnswer": "48",
                "difficulty": "normal"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
        }
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    "_archetype": "form-exercise",
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