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E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_10
\ 06-Jan-2024 Sonia Suyal Proof-1 Reader’s Sign _______________________ Date __________
Encapsulate
math
tiMe
Clock reading time reading time to 5 Minutes Correctness
Second Quarter Past the Hour 5 × 12 = 60 minutes
11 12 1 hand 1:15 or quarter past 1. 5 × 11 = 55 minutes 5 × 1 = 5 minutes
10 2 12
9 3 11 12 1 2 5 × 10 = 50 minutes 10 11 1 2 5 × 2 = 10 minutes
Hour 8 7 6 5 4 Minute 9 10 3 5 × 9 = 45 minutes 9 Left Right 3 5 × 3 = 15 minutes
hand hand 8 4 8 half half 4
7 6 5 5 × 8 = 40 minutes 7 6 5 5 × 4 = 20 minutes
24-Hour Clock Quarter to the Hour 5 × 7 = 35 minutes 5 × 5 = 25 minutes
4:45 or quarter to 5 5 × 6 = 30 minutes
2400 hours
or
2300 hours 0000 hours 0100 hours 12
2200 hours 11 12 1 0200 hours 11 1 When the minute hand When the minute hand
2100 hours 10 midnight 2 0300 hours
9 3 2
2000 hours 8 4 0400 hours 10 is in the left half, the is in the right half, the
1900 hours 7 5 0500 hours 9 3
1800 hours 6 p.m. a.m. 6 0600 hours time is read as to. time is read as past.
1700 hours 5 7 0700 hours 8 4
4 8
1600 hours 3 9 0800 hours 7 6 5
1500 hours 2 1 noon 10 0900 hours
1400 hours 12 11 1000 hours
1300 hours 1100 hours
1200 hours
a.M. and P.M. estimating the time Between times
(before and after)
Noon Midnight Midnight Noon 10 11 12 1 2
11 a.m. 1 a.m. 11 p.m. 1 p.m. 9 8 4 3
10 a.m. 11 12 1 2 a.m. 10 p.m. 11 12 1 2 p.m. In seconds In minutes 7 6 5
10 2 10 2 1 hour before
9 a.m. 9 3 3 a.m. 9 p.m. 9 3 3 p.m. In hours
8 4 8 4
8 a.m. 7 6 5 4 a.m. 8 p.m. 7 6 5 4 p.m. 11 12 1
7 a.m. 5 a.m. 7 p.m. 5 p.m. 10 2
6 a.m. 6 p.m. 9 3
8 4
7 6 5
Writing dates Calendar
1 hour after
A calendar is a chart which
Example: 15th August, 1947 shall be written in the short form as: shows days, dates, weeks 11 12 1
15 . 08 . 1947 15 / 08 / 1947 and months in a year. 10 2
or 9 3
Day Month Year Day Month Year January 2025 8 7 6 5 4
Su M t W th F Sa
Conversion 1 2 3 4
5 6 7 8 9 10 11 timeline
1 hour = 60 minutes 1 week = 7 days 12 13 14 15 16 17 18 A timeline shows
23
24
25
22
19
20
21
1 minute = 60 seconds 1 month = 30 day 26 27 28 29 30 31 the order or
1 day = 24 hours 1 year = 12 month sequence in which
1 year = 365 days some events
happened.
Mathematics-3 187

