Page 108 - SK Year 5 Mathematics DLP

3
Apartment Monthly Living Cost
Based on the table, how
Cost Rent Maintenance much is the total cost of
living for 15 months?
Value RM750 RM56.80

(RM750 + RM56.80) × 15 =

First, solve the 1
operation in RM 7 5 0.0 0
the brackets.
Then, multiply. + RM 5 6.8 0 3 4
RM 8 0 6.8 0 RM 8 0 6.8 0

× 1 5
1 1
4 0 3 4 0 0
+ 8 0 6 8 0 0
RM 1 2 1 0 2.0 0
(RM750 + RM56.80) × 15 = RM12 102

The total cost of living for 15 months is RM12 102.

4
Based on the information, calculate
Monthly money record the expenses for 2 years if the
balance of the money is all spent.
Nett salary RM2 350
Family savings RM180 (RM2 350 – RM180) × 24 =

2 1 7 0 × 2 years = 24 months
1
0 1 0 1 0 2
2 15 0 4 2 4 0
RM 2 3 5 0 0 0 2 0 4
– RM 1 8 0 5 8 4 8 0
RM 2 1 7 0 2 0 8 0
RM2 170 × 24 = RM52 080

(RM2 350 – RM180) × 24 = RM52 080
The expenses for 2 years if the balance of the money is all
spent is RM52 080.

100 3.2.1 (i) • Emphasise that the operation in the brackets should be solved first.
3.2.1 (ii)
• Vary calculation methods according to pupils’ level.