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Time
measurement
Time
measurement
Analogue Clock
• –
• –
’
DIGITAL Clock
•
•
AM / PM
A.M.
(Ante Meridiem)
P.M.
(Post Meridiem)
Time Measure using
Hours, Minutes and
Seconds
Time Measure using
Hours, Minutes and
Seconds
•
•
Time Conversion
Example:
5 minutes = _____ seconds
1 minute = 60 seconds
5 minutes = 300 seconds
Example:
720 seconds = _____ minutes
60 seconds = 1 minute
÷
720 seconds = 12 minutes
Example:
3 hours = _____ minutes
1 hour = 60 minutes
3 hours = 180 minutes
Example:
540 minutes = _____ hours
1 hour = 60 minutes
÷
540 minutes = 9 hours
Example:
3 hours and 35 minutes = _____ minutes
1 hour = 60 minutes
∴3 hours and 35
minutes = 215 minutes
Example:
2 days = _____ hours
1 day = 24 hours
2 days = 48 hours
6 hours = _____ minutes
1 hour = 60 minutes
6 hours = 360 minutes
1 day 2 hours = ____ hours
1 day = 24 hours
1 day 2 hours = 26 hours
Time Measure using
Days, Weeks, Months
and Years
Time Measure using
Days, Weeks, Months
and Years
•
•
Time Conversion
Example:
3 weeks = _____ days
1 week = 7 days
3 weeks = 21 days
Example:
7 months = _____ weeks
1 month = 4 weeks
7 months = 28 weeks
Example:
72 months = _____ years
1 year = 12 months
÷
72 months = 6 years
Example:
4 years and 3 months = ____ months
1 year = 12 months
4 years and 3 months = 51 months
108 months = _____ years
1 year = 12 months
÷
108 months = 9 years
2 weeks 3 days = _____ days
1 week = 7 days
2 weeks 3 days = 17 days
Problem:
1 day = 24 hours
Therefore, he was on the
balloon for 72 hours.
Problem:
1 week = 7 days
Therefore, she spend 555 hours
in reading the book.

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Time Measurement Math Grade 3