medium Set 20 Form Exercise

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

{
    "outputTargets": {
        "screen": true,
        "print": true,
        "pdf": true,
        "answerKey": true
    },
    "_meta": {
        "nodeId": "node-1-leaf-time-half-hour-grade-3",
        "pageNumber": 20,
        "generatedAt": "2026-03-16T15:22:33.096Z",
        "generatorVersion": "v7.2.1-wp-g2",
        "seed": "deac2293be683ecf",
        "seedInput": "1|node-1-leaf-time-half-hour-grade-3|20|1.0.0|",
        "schemaVersion": "2.0.0",
        "mathTemplateId": null,
        "archetype": "form-exercise",
        "siteId": 1
    },
    "semantics": {
        "solvability": {
            "isDeterministic": true,
            "solutionCount": 1
        },
        "difficulty": {
            "declaredLevel": "medium",
            "computedScore": 70,
            "metrics": {
                "problemCount": 20,
                "operation": "clock-math",
                "digits": 4,
                "regrouping": false
            }
        },
        "diversity": {
            "structuralHash": "079b8b6eb5f463b0b665b01f69b624f0",
            "contentFingerprint": "1776d012765a5c04"
        },
        "interaction": {
            "checkable": true,
            "revealable": true,
            "randomizable": true,
            "hintable": false,
            "progressable": true,
            "inputType": [
                "text-input"
            ]
        }
    },
    "version": "2.0",
    "generatorId": "arithmetic-generator-v7.2.1",
    "operation": "clock-math",
    "subject": "clock-math",
    "difficulty": "medium",
    "config": {
        "maxNumber": 1000,
        "clockMode": "half-hour",
        "_gradeLevel": "3"
    },
    "problems": [
        {
            "id": 1,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "45 minutes before 10:20 = ?",
            "answer": "9:35",
            "correctAnswer": "9:35",
            "difficulty": "normal"
        },
        {
            "id": 2,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 7:15 to 8:45?",
            "answer": 90,
            "correctAnswer": "90",
            "difficulty": "normal"
        },
        {
            "id": 3,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 8, minute hand at 25 minutes]",
            "answer": "8:25",
            "correctAnswer": "8:25",
            "difficulty": "normal"
        },
        {
            "id": 4,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 12, minute hand at 30 minutes]",
            "answer": "12:30",
            "correctAnswer": "12:30",
            "difficulty": "normal"
        },
        {
            "id": 5,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "5 minutes before 8:50 = ?",
            "answer": "8:45",
            "correctAnswer": "8:45",
            "difficulty": "normal"
        },
        {
            "id": 6,
            "type": "clock-math",
            "subType": "add-time",
            "question": "75 minutes after 10:55 = ?",
            "answer": "12:10",
            "correctAnswer": "12:10",
            "difficulty": "normal"
        },
        {
            "id": 7,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "50 minutes before 6:25 = ?",
            "answer": "5:35",
            "correctAnswer": "5:35",
            "difficulty": "normal"
        },
        {
            "id": 8,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 2, minute hand at 25 minutes]",
            "answer": "2:25",
            "correctAnswer": "2:25",
            "difficulty": "normal"
        },
        {
            "id": 9,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 6, minute hand at 30 minutes]",
            "answer": "6:30",
            "correctAnswer": "6:30",
            "difficulty": "normal"
        },
        {
            "id": 10,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 8:05 to 10:00?",
            "answer": 115,
            "correctAnswer": "115",
            "difficulty": "normal"
        },
        {
            "id": 11,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 1:45 to 2:55?",
            "answer": 70,
            "correctAnswer": "70",
            "difficulty": "normal"
        },
        {
            "id": 12,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 11:20 to 12:30?",
            "answer": 70,
            "correctAnswer": "70",
            "difficulty": "normal"
        },
        {
            "id": 13,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 6, minute hand at 15 minutes]",
            "answer": "6:15",
            "correctAnswer": "6:15",
            "difficulty": "normal"
        },
        {
            "id": 14,
            "type": "clock-math",
            "subType": "add-time",
            "question": "10 minutes after 11:10 = ?",
            "answer": "11:20",
            "correctAnswer": "11:20",
            "difficulty": "normal"
        },
        {
            "id": 15,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "50 minutes before 10:45 = ?",
            "answer": "9:55",
            "correctAnswer": "9:55",
            "difficulty": "normal"
        },
        {
            "id": 16,
            "type": "clock-math",
            "subType": "add-time",
            "question": "55 minutes after 2:40 = ?",
            "answer": "3:35",
            "correctAnswer": "3:35",
            "difficulty": "normal"
        },
        {
            "id": 17,
            "type": "clock-math",
            "subType": "add-time",
            "question": "65 minutes after 6:25 = ?",
            "answer": "7:30",
            "correctAnswer": "7:30",
            "difficulty": "normal"
        },
        {
            "id": 18,
            "type": "clock-math",
            "subType": "add-time",
            "question": "65 minutes after 10:25 = ?",
            "answer": "11:30",
            "correctAnswer": "11:30",
            "difficulty": "normal"
        },
        {
            "id": 19,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "20 minutes before 2:05 = ?",
            "answer": "1:45",
            "correctAnswer": "1:45",
            "difficulty": "normal"
        },
        {
            "id": 20,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 5:20 to 5:25?",
            "answer": 5,
            "correctAnswer": "5",
            "difficulty": "normal"
        }
    ],
    "layout": {
        "columns": 2,
        "problemsPerPage": 20
    },
    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
}