Page 183 - Math Genius C3

E:\Working\Orange_Education\Math_Genius_3_(08-10-2025)\Open_Files\CHAP_10
\ 08-Oct-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________

A.M. And P.M. esTiMATing The TiMe

As explained earlier, the hour hand goes round the dial twice in one day. So it shows the A second is a short amount A minute is equal to An hour is equal to
same time twice every day. of time. It takes about 1 60 seconds. It takes about 60 minutes. It takes a little

• The time from 12 o’clock midnight to 11:59 in the morning is shown by the small second to turn on a light or 2 minutes to brush your more than an hour to play
letters ‘a.m.’ (ante meridiem). open the refrigerator door. teeth. a hockey match.

• The time from 12 o’clock noon to 11:59 at night is shown by the small letters ‘p.m.’

(post meridiem).

Noon Midnight Midnight Noon Get it right!

11 a.m. 1 a.m. 11 p.m. 1 p.m. 12:00 day-time 
10 a.m. 11 12 1 2 a.m. 10 p.m. 11 12 1 2 p.m.
10 2 10 2 12 noon  Practice Time 10c
9 a.m. 9 3 3 a.m. 9 p.m. 9 3 3 p.m.
8 4 8 4 12:00 night-time 
8 a.m. 7 6 5 4 a.m. 8 p.m. 7 6 5 4 p.m. 1. Tick () the correct one.
7 a.m. 5 a.m. 7 p.m. 5 p.m. 12 midnight 
6 a.m. 6 p.m. (a) Having afternoon (b) Postman delivering a (c) Having dessert after

snacks parcel in the morning dinner
12
11 1
11 12 1 10 2
10 2 9 3 p.m.
9 3 a.m. 8 4
8 4 7 6 5
7 6 5
Sonia eats breakfast at 8:00 a.m. Mona watches TV at 8:00 p.m.

a.m. p.m. a.m. p.m. a.m. p.m.
TiMe in seconds

2. Write a.m. or p.m.
Clocks have a third hand too. Second

It is a very thin and long hand. It is called the second hand. 10 11 12 1 2 hand ( a) 6:30 in the morning (b) 5:00 evening

9 3 ( c) 7:15 in the evening (d) 8:05 in the night
It moves faster than the minute hand. 8 4
Hour 7 6 5 Minute
It completes one round in 1 minute or 60 seconds. So, hand hand ( e) 9:40 before noon (f) 10:25 morning

1 minute = 60 seconds 3. Fill in the blanks with minute/s, hour/s and second/s.

( a) It takes about a .............. to blink your eyes.

Think Tank Logical Thinking ( b) It takes about 15 .............. to eat breakfast.
How many seconds are there in 1 hour? _____________ seconds.
( c) It takes about 1 .............. to do homework.

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