How do I change meters to decimeters and centimeters?

To convert from meters (m) to decimeters (dm), you multiply by 10 because there are 10 decimeters in a meter.

So,  1 meter = 10 decimeters

To convert from meters to centimeters (cm), you multiply by 100 because there are 100 centimeters in a meter.

So, 1 meter = 100 centimeters