Page 156 - SK Year 5 Mathematics DLP

2 Based on the table, calculate Service duration
Encik Mirza’s duration of service, School Duration
in decades, before he retired. SK Sri Intan 2.4 decades
2.4 decades + 0.8 decade = decades SK Melati 0.8 decade
1
2.4 decades
+ 0.8 decade
3.2 decades

2.4 decades + 0.8 decade = 3.2 decades

Encik Mirza’s duration of service before he
retired is 3.2 decades.

3 I was a temporary school How many years has Miss Alice served

1 as a teacher?
teacher for decade. For the
5 1
next 1.3 decades, decade + 1.3 decades = years
I am a permanent teacher. 5
Method 1
Cara 1

1
5 decade = 0.2 decade

0.2 decade 1.5 decades
+ 1.3 decades = (1.5 × 10) years
1.5 decades = 15 years
Method 2
Cara 2

1 1 2
5 decade = ( × 10) years 1.3 decades = (1.3 × 10) years
5
1 = 13 years
= 2 years

2 years + 13 years = 15 years
1
5 decade + 1.3 decades = 15 years
Miss Alice has served as a teacher for 15 years.

Give the answer of 3.9 decades add 51 years, in decades.

148 4.3.1 (iv)
4.3.2 (iv) • Discuss a few calculation strategies to obtain the answer.