Time Goes On
CBSE · Class 3 · Mathematics
Quick revision notes for Time Goes On — CBSE Class 3 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
Calendar and Months
- July and January calendars look the same in this chapter activity.
- The chapter asks for the calendar of July 2024 with days from Monday to Sunday.
- A year has 12 months.
Weeks, Days, and Year Count
- The chapter asks whether there are 53 weeks in a year.
- A non-leap year has 365 days, which is 52 weeks and 1 extra day.
- The number of weeks in a year is not exactly 53.
Dates and Calendar Counting
- Three days after July 22 is July 25.
- The day on that date is found by moving three days ahead on the calendar.
- A school closes on July 7 for 15 days, and the reopening date must be found by counting 15 days.
Age Problems
- Hetal is twice as old as her brother.
- Hetal is also 10 years older than her brother.
- Both conditions must be used together to find the ages.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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