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Measurement-Time

Measurement-Time
science Square
Science Square

Measurement-Time

 

Units of Time: Here are the units that we use in our daily life to check the time.

 

Maths class 4 MeasurementTime

 

 

Time Interval: Time interval is defined as period between two points of time.

For example: The time interval between 12 o’ clock and 1 o’clock is 1 hour.

Maths class 4 MeasurementTime

 

     Conversion of Minutes into Hours: Follow the given steps

  • Divide the number of minutes by 60
  • Quotient defines the number of hours.
  • The remainder is number of minutes.

 

For example:

Maths class 4 MeasurementTime

 

     Conversion of Seconds into Minutes:

  • Divide the number of seconds by 60.
  • The quotient defines the number of minutes.
  • The remainder defines the number of seconds greater than full minutes.

 

For example:

 

Maths class 4 MeasurementTime

 

 

Addition and Subtraction of Time: Always add or subtract the hours, minutes and seconds separately. 

 

For example:

 

Maths class 4 MeasurementTime

 

 

Exercise

 

  • Convert following into hours:
  1. 230 minutes
  2. 346 minutes
  • 198 minutes

 

  • Convert following into minutes:
  1. 240 seconds
  2. 360 seconds
  • 196 seconds

 

  • Add the following:
  1. 4 hrs 16 min and 6 hrs 20 min
  2. 6 hrs 09 min and 7 hrs 19 min
  • 2 hrs 18 min and 3 hrs 22 min

 

  • Subtract the following:
  1. 4 hrs 34 min from 6 hrs 44 min
  2. 1 hrs 25 min from 4 hrs 13 min
  • 3 hrs 44 min from 8 hrs 60 min

 

  • Tell the time in the following watch:

              Maths class 4 Fractions

 

 

                                                  Recap

  • 1 minute = 60 seconds, 1 hour = 60 minutes and 1 day = 24 hours
  • 1 day = 24 hours, 1 week = 7 days and 1 year = 12 months/ 365 days
  • Calendar is a chart to represent the months, weeks and days.
  • Leap Year has 366 days.

 

Quiz for Measurement-Time

Q.1

What is the time in the analog watch?

a) 11:05
b) 11:15
c) 11:30
d) 11:45

Q.2

What is the time in the analog watch?

a) 2:10
b) 2:00
c) 2:25
d) 2:15

Q.3

What is the time in the analog watch?

a) 11:10
b) 11:05
c) 11:15
d) 10:10

Q.4

Which clock shows time 10:25?

a)
b)
c)
d)

Q.5

Which clock shows time 6:35?

a)
b)
c)
d)

Q.6

Which clock shows time 12:25?

a)
b)
c)
d)

Q.7

Fill in the blanks(determine the total elapsed time):- 4:30 + ____?_____ = 5:45

a) 2 hours 15 minutes
b) 1 hour 45 minutes
c) 1 hour 15 minutes
d) 1 hour 30 minutes

Q.8

Fill in the blanks(determine the total elapsed time):- 3:10+ ____?_____= 4:55

a) 1 hour 55 minutes
b) 1 hour 45 minutes
c) 1 hour 10 minutes
d) 2 hours 45 minutes

Q.9

Fill in the blanks(determine the total elapsed time):- 12:10+ ____?____= 12:55

a) 1 hour 15 minutes
b) 1 hour 45 minutes
c) 45 minutes
d) 35 minutes

Q.10

Fill in the blanks(determine the total elapsed time):- 1:12+_____?____= 4:29

a) 2 hours 17 minutes
b) 3 hours 17 minutes
c) 2 hours 27 minutes
d) 3 hours 27 minutes

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