B Set 18 Unknown

This page uses a content type that does not have a custom renderer yet. Raw structured data is shown below.

{
    "contentData": {
        "operation": "number-sense",
        "subject": "arithmetic",
        "difficulty": "easy",
        "config": {
            "maxNumber": 10
        },
        "problems": [
            {
                "id": 1,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 128 ÷ 9?",
                "answer": 14,
                "correctAnswer": "14",
                "difficulty": "normal"
            },
            {
                "id": 2,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 50 ÷ 6?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "normal"
            },
            {
                "id": 3,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 104 ÷ 7?",
                "answer": 14,
                "correctAnswer": "14",
                "difficulty": "normal"
            },
            {
                "id": 4,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 43 ÷ 7?",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "normal"
            },
            {
                "id": 5,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 79 ÷ 4?",
                "answer": 19,
                "correctAnswer": "19",
                "difficulty": "normal"
            },
            {
                "id": 6,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 183 ÷ 7?",
                "answer": 26,
                "correctAnswer": "26",
                "difficulty": "normal"
            },
            {
                "id": 7,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 23 ÷ 2?",
                "answer": 11,
                "correctAnswer": "11",
                "difficulty": "normal"
            },
            {
                "id": 8,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 55 ÷ 8?",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "normal"
            },
            {
                "id": 9,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 26 ÷ 3?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 107 ÷ 7?",
                "answer": 15,
                "correctAnswer": "15",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 17 ÷ 2?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "normal"
            },
            {
                "id": 12,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 113 ÷ 6?",
                "answer": 18,
                "correctAnswer": "18",
                "difficulty": "normal"
            },
            {
                "id": 13,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 77 ÷ 9?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "normal"
            },
            {
                "id": 14,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 29 ÷ 4?",
                "answer": 7,
                "correctAnswer": "7",
                "difficulty": "normal"
            },
            {
                "id": 15,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 173 ÷ 6?",
                "answer": 28,
                "correctAnswer": "28",
                "difficulty": "normal"
            },
            {
                "id": 16,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 89 ÷ 3?",
                "answer": 29,
                "correctAnswer": "29",
                "difficulty": "normal"
            },
            {
                "id": 17,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 110 ÷ 4?",
                "answer": 27,
                "correctAnswer": "27",
                "difficulty": "normal"
            },
            {
                "id": 18,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 41 ÷ 6?",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "normal"
            },
            {
                "id": 19,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 23 ÷ 4?",
                "answer": 5,
                "correctAnswer": "5",
                "difficulty": "normal"
            },
            {
                "id": 20,
                "type": "estimation",
                "subType": "estimate-differences",
                "question": "About how many: 62 ÷ 6?",
                "answer": 10,
                "correctAnswer": "10",
                "difficulty": "normal"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
        }
    },
    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
}