Convert lengths, mass and capacity like a pro!
| Unit | Symbol | Key conversion |
|---|---|---|
| millimetre | mm | 10 mm = 1 cm |
| centimetre | cm | 100 cm = 1 m |
| metre | m | 1000 m = 1 km |
| kilometre | km |
| Unit | Symbol | Key conversion |
|---|---|---|
| gram | g | 1000 g = 1 kg |
| kilogram | kg |
Example: 2.5 kg = 2.5 × 1000 = 2500 g
| Unit | Symbol | Key conversion |
|---|---|---|
| millilitre | ml | 1000 ml = 1 L |
| litre | L |
Example: 3.5 L = 3.5 × 1000 = 3500 ml
To read a scale:
1. Find what each small division is worth.
2. Count the divisions from the last marked number.
3. Add to the last marked value.
Example: Scale 0–100, 10 divisions → each division = 10. Pointer at 6th division = 60
Always convert to the same unit before adding or subtracting.
Example: 1 kg 500 g + 750 g = 1500 g + 750 g = 2250 g
Key tip: identify the unit asked for in the answer, then convert everything to that unit first.
Convert 3.5 km to metres.
Convert 750 g to kilograms.
Convert 3500 ml to litres.
A rope is 45 cm + 60 cm + 75 cm. Total in cm?
Convert each measurement.
Convert each measurement.
Convert each measurement.
Read the value shown on each scale.
Solve each problem.