Page 205 - SK Year 5 Mathematics DLP

DIVISION OF UNITS OF MASS

1 Calculate the mass of one chocolate bar.
0.35 kg ÷ 7 = kg The mass of 7

0.0 5 kg chocolate bars
7 0.3 5 kg is 0.35 kg.
−0
0 3
− 0
3 5
− 3 5
0

0.35 kg ÷ 7 = 0.05 kg
The mass of one chocolate bar is 0.05 kg.

1
2 12.33 kg ÷ 18 = g 3 16 kg ÷ 10 = g
2
0 0.6 8 5 kg 1
1
18 1 2.3 3 0 kg 16 kg = 16 kg + kg
2
2
−0 = 16 kg + 0.5 kg
1 2
− 0 = 16.5 kg
1 2 3
− 1 0 8 16.5 kg ÷ 10 = 1.65 kg
1 5 3
− 1 4 4 = (1.65 × 1 000) g
9 0 = 1 650 g
− 9 0
0 1
16 kg ÷ 10 = 1 650 g
2
0.685 kg = (0.685 × 1 000) g
= 685 g
Try another method by converting
12.33 kg ÷ 18 = 685 g 1
16 kg to g first, then divide.
2

• Guide pupils to do a group activity. Pupils will weigh suitable items 197
5.2.5 and divide the number of packets of item according to the same
mass by giving the answers in the required units.