Free practice on Metric System for Class 5, following the Cameroon primary school curriculum (English subsystem). Every answer is explained, so a parent who is not sure of the answer can still help.
1 km = 1000 m. 1 m = 100 cm = 1000 mm. To go big → small, MULTIPLY. Small → big, DIVIDE.
| From → To | Multiply / Divide |
|---|---|
| km → m | × 1000 |
| m → cm | × 100 |
| cm → mm | × 10 |
| m → km | ÷ 1000 |
| cm → m | ÷ 100 |
Parallelogram: A = base × perpendicular height. Trapezium: A = ½ × (a + b) × h, where a and b are the parallel sides and h is the height.
| Shape | Area |
|---|---|
| Rectangle | l × w |
| Square | side × side |
| Triangle | ½ × b × h |
| Parallelogram | b × h |
| Trapezium | ½ × (a + b) × h |
1 litre = 1000 ml = 100 cl = 10 dl. So 1 dl = 100 ml. 1 cl = 10 ml.
| From → To | Rule |
|---|---|
| l → ml | × 1000 |
| l → cl | × 100 |
| cl → ml | × 10 |
| ml → l | ÷ 1000 |
Convert 2.5 km to metres.
Write your answer, then check below.
Answer: 2500
1 km = 1000 m, so 2.5 km = 2500 m.
Convert 3500 g to kilograms.
Answer: B. 3.5 kg
1000 g = 1 kg.
How many centilitres are in 2 litres?
Write your answer, then check below.
Answer: 200
1 litre = 100 cl.
A triangle has base 10 cm and height 6 cm. What is its area in square cm?
Write your answer, then check below.
Answer: 30
Area = ½ × base × height = ½ × 10 × 6 = 30.
A parallelogram has base 8 m and height 5 m. What is its area in square metres?
Write your answer, then check below.
Answer: 40
Area = base × height = 8 × 5 = 40.
A rectangle is 12 m long and 7 m wide. What is its perimeter in metres?
Write your answer, then check below.
Answer: 38
Perimeter = 2 × (12 + 7) = 38 m.
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