Metric units are based on 10, 100 and 1000. 1 meter = 100 centimeters and 1 kilogram = 1000 grams. To change a bigger unit into a smaller one, multiply: 4 m = 400 cm.
Time does not use tens. 1 hour = 60 minutes and 1 minute = 60 seconds. So 3 hours is 3 × 60 = 180 minutes. To go from a smaller unit to a bigger one, divide: 240 minutes ÷ 60 = 4 hours.
Worked example
How many grams are in 6 kilograms?
- 1 kg = 1000 g.
- 6 × 1000 = 6000.
Answer:6000 g
Key words
- convert
- change to a different unit
- kilogram (kg)
- 1000 grams
- meter (m)
- 100 centimeters
Practise this
New questions every time.
Common Core-referenced: 4.MD.A.1