101
Mass
Multiplication involving mass
Work out the following.
(i). 32 kg x 3 (ii). 280 g x 5
1400 g = 1000 g + 400 g
1400 g = 1 kg 400 g
8. Work out the following.
Let’s work out
(b). 2 kg 325 g
x 4
(a). 6 kg 140 g
x 2
(c). 5 kg 60 g
x 8
4
9. Work out the following.
(a). 3 9 kg 60 g (b). 8 24 kg 152 g (c). 5 42 kg 150 g
Let’s work out
Division involving mass
Work out the following.
(i). 85 g ÷ 5 (ii). 5 kg 624 g ÷ 4
5 85 g
17 g
4 5 kg 624 g
1 kg 406 g
4 5624 g
1406 g
5 kg 624 g = 5624 g
OR
1
32 kg
x 3
96 kg
2 kg 450 g
x 3
7 kg 350 g
2450 g
x 3
7350 g
2 kg 450 g = 2450 g
(iii). 2 kg 450 g x 3
7 350 g = 7 000 g + 350 g
= 7 kg + 350 g
= 7 kg 350 g
OR
1 1
280 g
x 5
1400 g
11
32 2
1