B Set 90 Unknown

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                "id": 1,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "18 minutes before 10:43 = ?",
                "answer": "10:25",
                "correctAnswer": "10:25",
                "difficulty": "expert"
            },
            {
                "id": 2,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 6, minute hand at 47 minutes]",
                "answer": "6:47",
                "correctAnswer": "6:47",
                "difficulty": "expert"
            },
            {
                "id": 3,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 6, minute hand at 43 minutes]",
                "answer": "6:43",
                "correctAnswer": "6:43",
                "difficulty": "expert"
            },
            {
                "id": 4,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 11, minute hand at 50 minutes]",
                "answer": "11:50",
                "correctAnswer": "11:50",
                "difficulty": "expert"
            },
            {
                "id": 5,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "11 minutes before 3:33 = ?",
                "answer": "3:22",
                "correctAnswer": "3:22",
                "difficulty": "expert"
            },
            {
                "id": 6,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "12 minutes before 9:23 = ?",
                "answer": "9:11",
                "correctAnswer": "9:11",
                "difficulty": "expert"
            },
            {
                "id": 7,
                "type": "clock-math",
                "subType": "add-time",
                "question": "49 minutes after 11:02 = ?",
                "answer": "11:51",
                "correctAnswer": "11:51",
                "difficulty": "expert"
            },
            {
                "id": 8,
                "type": "clock-math",
                "subType": "add-time",
                "question": "67 minutes after 1:45 = ?",
                "answer": "2:52",
                "correctAnswer": "2:52",
                "difficulty": "expert"
            },
            {
                "id": 9,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 11, minute hand at 37 minutes]",
                "answer": "11:37",
                "correctAnswer": "11:37",
                "difficulty": "expert"
            },
            {
                "id": 10,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 2, minute hand at 17 minutes]",
                "answer": "2:17",
                "correctAnswer": "2:17",
                "difficulty": "expert"
            },
            {
                "id": 11,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "5 minutes before 4:10 = ?",
                "answer": "4:05",
                "correctAnswer": "4:05",
                "difficulty": "expert"
            },
            {
                "id": 12,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "13 minutes before 5:10 = ?",
                "answer": "4:57",
                "correctAnswer": "4:57",
                "difficulty": "expert"
            },
            {
                "id": 13,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 4:41 to 5:19?",
                "answer": 38,
                "correctAnswer": "38",
                "difficulty": "expert"
            },
            {
                "id": 14,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 11, minute hand at 30 minutes]",
                "answer": "11:30",
                "correctAnswer": "11:30",
                "difficulty": "expert"
            },
            {
                "id": 15,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 7, minute hand at 17 minutes]",
                "answer": "7:17",
                "correctAnswer": "7:17",
                "difficulty": "expert"
            },
            {
                "id": 16,
                "type": "clock-math",
                "subType": "add-time",
                "question": "29 minutes after 8:38 = ?",
                "answer": "9:07",
                "correctAnswer": "9:07",
                "difficulty": "expert"
            },
            {
                "id": 17,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 11:36 to 12:55?",
                "answer": 79,
                "correctAnswer": "79",
                "difficulty": "expert"
            },
            {
                "id": 18,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "10 minutes before 2:53 = ?",
                "answer": "2:43",
                "correctAnswer": "2:43",
                "difficulty": "expert"
            },
            {
                "id": 19,
                "type": "clock-math",
                "subType": "add-time",
                "question": "21 minutes after 9:07 = ?",
                "answer": "9:28",
                "correctAnswer": "9:28",
                "difficulty": "expert"
            },
            {
                "id": 20,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 9, minute hand at 37 minutes]",
                "answer": "9:37",
                "correctAnswer": "9:37",
                "difficulty": "expert"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
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        "answerKey": true
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    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
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