Page 140 - SK Year 5 Mathematics DLP

Centuries to years Wow, the lifespan of a turtle
9
can reach century!
1 10

9
Convert century to years. 1 century = 100 years
10
9 century(ies) × 100 year(s)
century = years
10

Method 1
Method 2
100 years
9 9
10 10 10 10 10 10 10 10 10 10 century = ( 10 × 100) years
= 90 years
90 years
9 9
10 century = 90 years 10 century is 90 years.

2 Calculate the estimated lifespan of a Malayan tiger, in years.
The lifespan of
a Malayan Tiger 1 century = ( × 100) years
is about 5
1
5 century. = years

1 5 3
5 5 1 centuries
5
0 20 40 60 80 100 200 years
The estimated lifespan of a Malayan Tiger is about
years.

3
Using the number line, state 1 centuries in years.
5

132 • Discuss endangered animals and instil values such as how
4.2.1 (vi)
to save endangered animals.