Metric systems

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Intros
Lessons
  1. What is the Metric system?
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Examples
Lessons
  1. Completing the conversions
    1. 0.4 km =____ m
    2. 45 mm =____ km
    3. 54 m =____ mm
  2. Add or subtract different metric units
    1. 18 m + 7 km - 225 cm = ______ cm
    2. 1500 cm + 20 m - 0.03 km = ______ m
    3. 0.35km + 5000 cm - 200 m = _____ mm