Page 173 - SK Year 5 Mathematics DLP

1 Find the answers.
3 1
a hour – hour = hour b 0.5 hour – 0.45 hour = hour
4 2
5 1
c day – day = day d 0.25 day – 0.125 day = day
8 3
e 7.75 years – 4.5 years = years
2 1
f 1 decades – decade = decades
5 10
g 8.11 centuries – 6.7 centuries = centuries

2 Find the difference of duration.
5
a hour – 13 minutes = minutes
6
b 1 hour 40 minutes – 0.95 hour = minutes
3
c 2 days – 1 day 2 hours = day hours
8
d 1.375 days – 4 hours = day hours
7
e 9 decades – 2 decades 3 years = years
10
f 8.1 decades – 27 years = decades years
1
g 2 centuries 4 decades – 1 centuries = decades
5
3 Solve these.
7
a Deduct 1 century 34 years from 5 centuries.
10
Give the answer in centuries and years.
b Find the difference between 2.1 centuries and 6 centuries 9 years.
State the answer in years.

4 Find the answers.
4 1
a hour – 0.15 hour = minutes b 1 days – 0.875 day = hours
5 5 8 3
c 4.5 years – 1 years d 9.1 decades – 6 decades
12 10

= years month = decades years
5 Complete the bridge map.

decades century decades years
as as
1 1 1
0.9 century – century 3 centuries – 1.7 centuries 1 centuries – 0.9 century
5 2 4

4.3.1 165
4.3.2