Grade 4 Math

Length units

Practise mm, cm, dm, m, and km with conversions, comparisons, and short calculations.

How to solve this

  • Use the metric ladder: 1 cm = 10 mm, 1 dm = 10 cm, 1 m = 100 cm, and 1 km = 1000 m.
  • For comparisons, convert both lengths to the same unit before choosing <, >, or =.
  • Mixed answers show the same amount in two units: 350 cm is 3 m 50 cm.

Examples

1 m = __ cm

100

4 km = __ m

4000

350 cm

3 m 50 cm