1 km is 1000 m, 1 t is 1000 kg, 1 h is 60 min and 1 min is 60 s.
1 m is 10 dm, 1 dm is 10 cm, 1 cm is 10 mm, 1 l is 1000 ml.
This is how you do it:
1. Look closely at the two units.
2. Think about how often the small unit fits into the big one.
3. Multiply or divide: 3 km is 3 times 1000 m, so 3000 m.
The number written in shows the answer.
Examples
Example: Converting Units
Example: Converting a mixed measure
For parents
What does this exercise practice?
This exercise consolidates the conversion numbers between the big units and links understanding of quantities with calculating up to 1,000,000.
Common pitfalls
Children often mix up the direction and divide where they should multiply. It helps to ask whether the answer must be bigger or smaller than the starting number.
How to practice at home
Look for details in kg, t, km or minutes on packaging and signposts and convert them together.
Related: Comparing Measurements, Measuring lengths, Time Spans