Workbook Detail
Clock Math Quarter Hour Hard — Set 31
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"contentData": {
"operation": "clock-math",
"subject": "clock-math",
"difficulty": "hard",
"config": {
"difficulty": "hard",
"clockMode": "quarter-hour",
"maxNumber": 10
},
"problems": [
{
"id": 1,
"type": "clock-math",
"subType": "add-time",
"question": "66 minutes after 1:08 = ?",
"answer": "2:14",
"correctAnswer": "2:14",
"difficulty": "hard"
},
{
"id": 2,
"type": "clock-math",
"subType": "subtract-time",
"question": "38 minutes before 3:04 = ?",
"answer": "2:26",
"correctAnswer": "2:26",
"difficulty": "hard"
},
{
"id": 3,
"type": "clock-math",
"subType": "subtract-time",
"question": "31 minutes before 12:41 = ?",
"answer": "12:10",
"correctAnswer": "12:10",
"difficulty": "hard"
},
{
"id": 4,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 11:30 to 12:29?",
"answer": 59,
"correctAnswer": "59",
"difficulty": "hard"
},
{
"id": 5,
"type": "clock-math",
"subType": "read-time",
"question": "What time is shown on the clock? [hour hand near 7, minute hand at 49 minutes]",
"answer": "7:49",
"correctAnswer": "7:49",
"difficulty": "hard"
},
{
"id": 6,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 10:28 to 11:07?",
"answer": 39,
"correctAnswer": "39",
"difficulty": "hard"
},
{
"id": 7,
"type": "clock-math",
"subType": "add-time",
"question": "89 minutes after 5:13 = ?",
"answer": "6:42",
"correctAnswer": "6:42",
"difficulty": "hard"
},
{
"id": 8,
"type": "clock-math",
"subType": "add-time",
"question": "44 minutes after 11:24 = ?",
"answer": "12:08",
"correctAnswer": "12:08",
"difficulty": "hard"
},
{
"id": 9,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 1:22 to 2:44?",
"answer": 82,
"correctAnswer": "82",
"difficulty": "hard"
},
{
"id": 10,
"type": "clock-math",
"subType": "subtract-time",
"question": "34 minutes before 9:24 = ?",
"answer": "8:50",
"correctAnswer": "8:50",
"difficulty": "hard"
},
{
"id": 11,
"type": "clock-math",
"subType": "read-time",
"question": "What time is shown on the clock? [hour hand near 5, minute hand at 28 minutes]",
"answer": "5:28",
"correctAnswer": "5:28",
"difficulty": "hard"
},
{
"id": 12,
"type": "clock-math",
"subType": "read-time",
"question": "What time is shown on the clock? [hour hand near 10, minute hand at 11 minutes]",
"answer": "10:11",
"correctAnswer": "10:11",
"difficulty": "hard"
},
{
"id": 13,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 4:28 to 6:04?",
"answer": 96,
"correctAnswer": "96",
"difficulty": "hard"
},
{
"id": 14,
"type": "clock-math",
"subType": "add-time",
"question": "69 minutes after 9:59 = ?",
"answer": "11:08",
"correctAnswer": "11:08",
"difficulty": "hard"
},
{
"id": 15,
"type": "clock-math",
"subType": "subtract-time",
"question": "6 minutes before 9:43 = ?",
"answer": "9:37",
"correctAnswer": "9:37",
"difficulty": "hard"
},
{
"id": 16,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 3:26 to 5:11?",
"answer": 105,
"correctAnswer": "105",
"difficulty": "hard"
},
{
"id": 17,
"type": "clock-math",
"subType": "add-time",
"question": "20 minutes after 4:39 = ?",
"answer": "4:59",
"correctAnswer": "4:59",
"difficulty": "hard"
},
{
"id": 18,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 8:01 to 9:45?",
"answer": 104,
"correctAnswer": "104",
"difficulty": "hard"
},
{
"id": 19,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 7:54 to 8:36?",
"answer": 42,
"correctAnswer": "42",
"difficulty": "hard"
},
{
"id": 20,
"type": "clock-math",
"subType": "elapsed-time",
"question": "How many minutes from 11:28 to 12:16?",
"answer": 48,
"correctAnswer": "48",
"difficulty": "hard"
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
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"outputTargets": {
"screen": true,
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"answerKey": true
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"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
- 66 minutes after 1:08 = ?
- 38 minutes before 3:04 = ?
- 31 minutes before 12:41 = ?
- How many minutes from 11:30 to 12:29?
- What time is shown on the clock? [hour hand near 7, minute hand at 49 minutes]
- How many minutes from 10:28 to 11:07?
- 89 minutes after 5:13 = ?
- 44 minutes after 11:24 = ?
- How many minutes from 1:22 to 2:44?
- 34 minutes before 9:24 = ?
- What time is shown on the clock? [hour hand near 5, minute hand at 28 minutes]
- What time is shown on the clock? [hour hand near 10, minute hand at 11 minutes]
- How many minutes from 4:28 to 6:04?
- 69 minutes after 9:59 = ?
- 6 minutes before 9:43 = ?
- How many minutes from 3:26 to 5:11?
- 20 minutes after 4:39 = ?
- How many minutes from 8:01 to 9:45?
- How many minutes from 7:54 to 8:36?
- How many minutes from 11:28 to 12:16?
Practice clock math quarter hour with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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