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Time and Calendar — Flashcards

ICSE · Class 4 · Mathematics

30 flashcards for Time and Calendar (ICSE Class 4 Mathematics) to test yourself on key terms and facts. Sample: "How many hours are there in 5 days?"

44 questions30 flashcards14 formulas & key relations4 concepts

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30 Flashcards·
Time ConversionAddition of TimeSubtraction of Time
Card 1Time Conversion

How many hours are there in 5 days?

Answer

1 day = 24 hours<br>5 days = 5 × 24 = 120 hours<br><b>Answer: 120 hours</b>…

Card 2Time Conversion

Convert 3 hours 45 minutes into minutes.

Answer

1 hour = 60 minutes<br>3 hours = 3 × 60 = 180 minutes<br>3 hours 45 minutes = 180 + 45 = 225 minutes<br><b>Answer: 225 minutes</b>…

Card 3Time Conversion

Convert 287 seconds into minutes and seconds.

Answer

60 seconds = 1 minute<br>287 ÷ 60 = 4 quotient, remainder 47<br>So, 287 seconds = 4 minutes 47 seconds<br><b>Answer: 4 minutes 47 seconds</b>…

Card 4Time Conversion

Convert 145 minutes into hours and minutes.

Answer

60 minutes = 1 hour<br>145 ÷ 60 = 2 quotient, remainder 25<br>So, 145 minutes = 2 hours 25 minutes<br><b>Answer: 2 hours 25 minutes</b>…

Card 5Time Conversion

Convert 96 hours into days and hours.

Answer

24 hours = 1 day<br>96 ÷ 24 = 4 quotient, remainder 0<br>So, 96 hours = 4 days<br><b>Answer: 4 days</b>…

Card 6Addition of Time

Add: 2 hours 35 minutes and 1 hour 40 minutes.

Answer

<b>Step 1:</b> Add minutes: 35 + 40 = 75 minutes<br>75 minutes = 60 + 15 = 1 hour 15 minutes<br>Write 15 minutes, carry over 1 hour.<br><b>Step 2:</b> Add hours: 2 + 1 + 1 = 4 hours<br><b>Answer: 4 ho…

Card 7Addition of Time

Add: 3 hours 50 minutes 20 seconds and 2 hours 45 minutes 50 seconds.

Answer

<b>Step 1:</b> Add seconds: 20 + 50 = 70 seconds = 1 minute 10 seconds → carry 1 minute<br><b>Step 2:</b> Add minutes: 50 + 45 + 1 = 96 minutes = 1 hour 36 minutes → carry 1 hour<br><b>Step 3:</b> Add…

Card 8Subtraction of Time

Subtract: 5 hours 20 minutes from 8 hours 10 minutes.

Answer

<b>Step 1:</b> Minutes: 10 < 20, so borrow 1 hour (60 minutes)<br>Now: 7 hours 70 minutes<br>70 - 20 = 50 minutes<br><b>Step 2:</b> Hours: 7 - 5 = 2 hours<br><b>Answer: 2 hours 50 minutes</b>…

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Frequently Asked Questions

What are the important topics in Time and Calendar for ICSE Class 4 Mathematics?
Key topics in Time and Calendar include Telling Time Correct to the Nearest Minute, Conversions of Time, Operations on Time Measures, Calendar. Study these first, then practise questions on each for Class 4 exams.
How many flashcards are available for Time and Calendar?
There are 30 flashcards for Time and Calendar covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Time and Calendar for Class 4 exams?
Learn the core ideas first, then work through the 44 practice questions on Time and Calendar. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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