Mental Math on Time
In mental math on time, we will solve different types of problems on reading time to the nearest minutes, reading time to the exact minutes, use of a.m. and p.m., 24-hours clock, days in a year and calculating days.
1. 1 day = __________ minutes
2. 2:30 after mid-night = 2:30 __________
3. There are __________ days from 12th March to 5th April.
4. 2240 hours = __________ p.m.
5. You usually take your breakfast at __________ a.m.
6. In how many minutes does the second hand complete one round of the dial __________ ?
7. The minute hand is at 8 and the hour hand is between 3 and 4. The time is __________
8. If it is 12 o'clock in the day, we say the time is 12 __________
9. 1 non-leap year + 1 day = 1 __________ year.
10. Answer the following questions:
(i) Which month comes after July?
(ii) Which month comes before November?
(iii) Which month comes two months before April?
(iv) Which month comes two months after June?
(v) Which is the fifth month of a year?
(vi) Which is the last month of a year?
Answer:
1. 86400
2. a.m.
3. 23 days
4. 10:40 p.m.
5. 8 a.m.
6. 1
7. 3:40
8. 12 p.m.
9. leap year
10. (i) August
(ii) October
(iii) February
(iv) August
(v) May
(vi) December
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