Page 84 - SK Year 5 Mathematics DLP

MULTIPLICATION OF DECIMALS

1 The volume of What is the total volume of orange concentrate
orange concentrate in 10 similar bottles?
in litres is 0.33 . 10 × 0.33 =

0 . 3 3 2 decimal places
× 1 0 3.30 can
3 . 3 0 2 decimal places be written

10 × 0.33 = 3.3 as 3.3 .
0.33
The total volume of orange concentrate
in 10 similar bottles is 3.3 .

2 I cycle back and
forth from home to
Aidil’s school for 24 times,
house in a month.

Back and forth
distance is 1.046 km.

school
Based on the situation above, calculate the total distance travelled
by Aidil in a month.
24 × 1.046 km =

1
1 2
1 . 0 4 6 3 decimal places Use the lattice
× 2 4 method to check the
1 1 answer.
4 1 8 4
+ 2 0 9 2 0
2 5 . 1 0 4 3 decimal places

24 × 1.046 km = 25.104 km

The total distance travelled by
Aidil in a month is 25.104 km.

• State that multiplying decimals is similar to multiplying
76 1.1.2 • Beri penekanan bahawa nilai yang melibatkan 0 pada nilai tempat
whole numbers.
(i), (ii)
2.2.3
• Emphasise that the number of decimal places in the answer
mesti ditulis apabila mencerakinkan nombor kepada nilai tempat.
must be the same as in the question.