1.
| a. centimetres |
 |
b. kilometres |
| c. millimetres or centimetres | d. metres | |
| e. kilometres | f. millimetres |
2. (a) centimetres
(b) litres
(c) kilograms
(d) metres
3.
| a. litres | b.tonnes |  |
| c. kilometres | d. metres | |
| e. seconds | f. kilograms |
4. (a) true.
(b) true
(c) false
(d) false
5.
|
a
|
2 kg = 2000 grams |
b
|
16 km = 16 000 metres |
|
c
|
200 g = 0.2 kilograms |
d
|
4200 mL = 4.2 litres |
|
e
|
3.5 hours = 12600 seconds |
f
|
45 mm = 4.5 centimetres |
|
g
|
8001 mg = 8.001 grams |
h
|
5.1 L = 5100 millilitres |
|
i
|
82 metres 82 000 millimetres |
j
|
34 cm = 0.34 metres |
6.
|
kilograms |
grams |
milligrams |
|
0.3 |
300 |
300 000 |
|
4 |
4000 |
4 000 000 |
|
0.0025 |
2.5 |
2500 |
