Time and calender - Worksheets
CBSE Worksheet-01
Class - IV Mathematics – Time and calender
Time Allowed: 30 minutes
- Fill in the blanks with suitable words:
In a leap year, February month has ______ days.
1:15 p.m is_____ hour and _____ minutes ahead of 10:45 a.m.
1000 years = _______ centuries.
9 min =______ seconds.
The hour hand takes _____ hours to move from 5 to 6 on the clock.
- State whether each of the following statement is True or False:
Period of 10 years makes a century.
January month has 30 days.
In 24 hours clock system, 11 noon is denoted as 11:00 hours.
We can write "twenty to 8" for 7:40.
6.45 p.m. in a 24-hour clock system is 18:45 hours.
If Lalit takes 19 hours and 20 minutes and reaches home at 8:30 a.m., then at what time did he start?
It is 8:30 p.m.
It is 1:50 p.m.
It is 1:10 p.m.
It is 7:20 p.m.
A tap was opened into an empty tank at 9:20 a.m. The tank was full at 10:15 a.m. How long did it take to fill the empty tank?
1 hour
50 minutes
45 minutes
55 minutes
20:20 hrs is ________ in the 12 hour clock time.
08:20 pm
10:20 pm
10:20 am
8:20 am
How long will it take the minutes hand to move from:
20 minutes
25 minutes
10 minutes
15 minutes
Reena left her house for school at 9:05 a.m. and reached school at 9:45 a.m. How much time did she take to reach school from her house?
40 minutes
50 minutes
35 minutes
45 minutes
Match the following:
(a) 43200 seconds (I) 30 minutes (b) 60 seconds (ii) 1 hour (c) 3600 seconds (iii) 12 hours (d) 1800 seconds (iv) 1 minute How many days will be there in the year 2020? It that a leap year?
How many days are from
- 3rd May to 1st July
- 5th March to 12th April
How many minutes pass between:
- Half past 8 and quarter past 9
- Half past 4 and quarter to 5
The dance party started at 12:50 and ended at 4:35. How long did the dance party take?
A bus leaves Ahmedabad for Bhavnagar at 6:30 a.m. It takes 5 hours to reach Bhavnagar, at what time it will reach Bhavnagar. After reaching Bhavnagar, it takes another 2:30 hours to reach the exact bus stop along with the traffic. Find the final time at which bus reaches the final bus stop.
Convert the following time into a 12-hour clock system.
- 20:45
- 14:42
- 06:23
- 04:20
Convert the following time into a 24-hour clock system.
- 3:15 a.m.
- 9:35 a.m.
- 2:15 p.m.
- 6:30 p.m.
APRIL 2020
Monday Tuesday Wednesday Thursday Friday Saturday Sunday 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Answer the following questions using the above calendar of April 2020.
- which is the first day of the month
- How many times Tuesday come in April 2020?
- which is the last day of the month?
- find the date on the second Sunday?
CBSE Worksheet-01
Class - IV Mathematics – Time and calender
Solution
Fill in the blanks with suitable words:
29. In a leap year, February month has 29 days.
2 hours and 30 minutes.
10:45 a.m to 11:45 a.m = 1 hours.
11:45 a.m to 12:45 p.m = 1 hours.
12:45 p.m to 1:15 p.m = 30 minutes.10
100 years = 1 century.
1000 years = century = 10 centuries540.
As we know, 1 min = 60 seconds
Then, 9 min = 960 = 540 secondsone. The hour hand takes 1 hour to move from 5 to 6 on the clock.
State whether each of the following statement is True or False:
FALSE
Period of 100 years makes a century.False
January month has 31 days.True
In 24 hours clock system, 11 noon is denoted as 11:00 hours.True, We can write "twenty to 8" for 7:40.
True
6.45 p.m. in a 24-hour clock system is 18:45 hours.
6.45 p.m. = 12:00 + 06: 45 = 18:45 hours
- (c) It is 1:10 p.m.
Explanation: Lalit takes 19 hours and 20 minutes and reaches home at 8:30 a.m.
From 12 to 8.30 a.m. 8.30 hours
So 19.20 – 8.30 = 10 hours 50 minutes
10 hours 50 minutes before 12 means 1:10 p.m.
So Lalit started at 1:10 p.m. - (d) 55 minutes
Explanation: A tap was opened into an empty tank at 9:20 a.m.
Tank was full at 10:15 a.m.
Difference = 10: 15 – 9: 20 = 55 minutes
So 55 minutes required to fill the empty tank. - (a) 08:20 pm
Explanation: 20:20 hrs is represent after 12 pm so, it represent as 08:20 in the 12 hour clock time. - (a) 20 minutes
Explanation: First clock show: 3:40 and second clock show: 4:00
So difference = 20 minutes - (a) 40 minutes
Explanation: Reena left her house for school at 9:05 a.m. and reached school at 9:45 a.m.
Time she take to reach school from her house = 9:45 a.m. – 9:05 am = 40 minutes (a) – (iii), (b) – (iv), (c) – (ii), (d) – (i)
- 1 minutes = 60 seconds
- 30 minutes = 30 60 =1800 seconds
- 1 hours = 60 60 = 3600 minutes
- 12 hours = 3600 12 = 43200
There 366 days in year 2020. Yes, it is the leap year 2020.
- 3rd May to 1st July
Days from 3rd May to 31 May = 29 days
Days in June month = 30 days
So, there are 29 + 30 = 59 days - 5th March to 12th April
Days from 5th March to 31st March = 27 days
Day from 1st April to 12th April = 11 days
So, there are 27 + 11 = 38 days
- 3rd May to 1st July
- Half past 8 and quarter past 9
We can write Half past 8 as 8:30 and quarter pass 9 as 9:15
Minute pass between 8:30 to 9:00 = 30 minutes
Minute pass between 9:00 to 9:15 = 15 minutes
So, the minute pass between 8:30 to 9:15 is (30+15) = 45 minutes. - Half past 4 and quarter to 5
We can write Half past 4 as 4:30 and quarter to 5 as 4:45
Minute pass between 4:30 to 4:45 = 15 minutes
So, the minute pass between 4:30 to 4:45 is 15 minutes.
- Half past 8 and quarter past 9
The dance party started at 12:50 and ended at 4:35.
10 minutes + 3 hours + 35 minutes = 3 hours 45 minutesA bus leaves Ahmedabad for Bhavnagar at 6:30 a.m. It takes 5 hours to reach Bhavnagar,
Bus reaches at Bhavnagar at 11:30 a.m. and takes 2:30 hours to reach the stop.
So, 11:30 hours + 2:30 hours is 14:00 hours.
Here, 14:00 hours = 2:00 pm.
So, the bus will reach the bus stop at 2:00 pm.- for A.M. 24 hour clock time and 12 hour clock time both are the same.
- for P.M. to convert 24 hour clock time to 12 hour clock time we have to subtract 12 in 24 hour clock time.
- 20:45
20:45 - 12:00 = 8:45 p.m. - 14:42
14:42 - 12:00 = 2:45 p.m. - 06:23
06:23 a.m. - 04:20
04:20 a.m.
- for A.M. 24 hour clock time and 12 hour clock time both are the same.
- for P.M. to convert 12 hour clock time to 24 hour clock time we have to add 12 in 12hour clock time.
- 3:15 a.m.
3:15 a.m. 03:15 - 9.35 a.m.
9:35 a.m. 09:35 - 2:15 p.m.
2:15 p.m. 12:00 + 2:15 = 14:15 - 6:30 p.m.
6:30 p.m. 12:00 + 6:30 = 18:30
- Wednesday
- 4 times
- Thursday
- 12/04/2020