B Set 80 Unknown

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

{
    "contentData": {
        "operation": "clock-math",
        "subject": "clock-math",
        "difficulty": "expert",
        "config": {
            "difficulty": "expert",
            "clockMode": "half-hour",
            "maxNumber": 10
        },
        "problems": [
            {
                "id": 1,
                "type": "clock-math",
                "subType": "add-time",
                "question": "56 minutes after 8:34 = ?",
                "answer": "9:30",
                "correctAnswer": "9:30",
                "difficulty": "expert"
            },
            {
                "id": 2,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 10:44 to 12:14?",
                "answer": 90,
                "correctAnswer": "90",
                "difficulty": "expert"
            },
            {
                "id": 3,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "16 minutes before 11:16 = ?",
                "answer": "11:00",
                "correctAnswer": "11:00",
                "difficulty": "expert"
            },
            {
                "id": 4,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 7:06 to 8:22?",
                "answer": 76,
                "correctAnswer": "76",
                "difficulty": "expert"
            },
            {
                "id": 5,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 3:09 to 3:50?",
                "answer": 41,
                "correctAnswer": "41",
                "difficulty": "expert"
            },
            {
                "id": 6,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 10:04 to 10:20?",
                "answer": 16,
                "correctAnswer": "16",
                "difficulty": "expert"
            },
            {
                "id": 7,
                "type": "clock-math",
                "subType": "add-time",
                "question": "14 minutes after 5:58 = ?",
                "answer": "6:12",
                "correctAnswer": "6:12",
                "difficulty": "expert"
            },
            {
                "id": 8,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 10, minute hand at 49 minutes]",
                "answer": "10:49",
                "correctAnswer": "10:49",
                "difficulty": "expert"
            },
            {
                "id": 9,
                "type": "clock-math",
                "subType": "add-time",
                "question": "49 minutes after 3:32 = ?",
                "answer": "4:21",
                "correctAnswer": "4:21",
                "difficulty": "expert"
            },
            {
                "id": 10,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 1:01 to 1:34?",
                "answer": 33,
                "correctAnswer": "33",
                "difficulty": "expert"
            },
            {
                "id": 11,
                "type": "clock-math",
                "subType": "add-time",
                "question": "10 minutes after 6:38 = ?",
                "answer": "6:48",
                "correctAnswer": "6:48",
                "difficulty": "expert"
            },
            {
                "id": 12,
                "type": "clock-math",
                "subType": "add-time",
                "question": "71 minutes after 5:35 = ?",
                "answer": "6:46",
                "correctAnswer": "6:46",
                "difficulty": "expert"
            },
            {
                "id": 13,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 3, minute hand at 43 minutes]",
                "answer": "3:43",
                "correctAnswer": "3:43",
                "difficulty": "expert"
            },
            {
                "id": 14,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 11:43 to 12:08?",
                "answer": 25,
                "correctAnswer": "25",
                "difficulty": "expert"
            },
            {
                "id": 15,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 11:50 to 1:27?",
                "answer": 97,
                "correctAnswer": "97",
                "difficulty": "expert"
            },
            {
                "id": 16,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 9:40 to 10:19?",
                "answer": 39,
                "correctAnswer": "39",
                "difficulty": "expert"
            },
            {
                "id": 17,
                "type": "clock-math",
                "subType": "add-time",
                "question": "59 minutes after 2:34 = ?",
                "answer": "3:33",
                "correctAnswer": "3:33",
                "difficulty": "expert"
            },
            {
                "id": 18,
                "type": "clock-math",
                "subType": "add-time",
                "question": "10 minutes after 9:19 = ?",
                "answer": "9:29",
                "correctAnswer": "9:29",
                "difficulty": "expert"
            },
            {
                "id": 19,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 5, minute hand at 1 minutes]",
                "answer": "5:01",
                "correctAnswer": "5:01",
                "difficulty": "expert"
            },
            {
                "id": 20,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 3, minute hand at 47 minutes]",
                "answer": "3:47",
                "correctAnswer": "3:47",
                "difficulty": "expert"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
        }
    },
    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
}