1. Measuring Length
Metric System

2. The Metric System is based on units of ten.
The base unit of length in the metric system is meters.

3. The prefix “centi” (c) means .01 (one one hundredth).
100 cm = 1 m
The prefix “milli” (m) means .001 (one one thousandth).
1000mm = 1 m
10 mm = 1 cm

4. Items to Measure and Their Measurements
Measurement in cm
Measurement in mm
1. Length of Fruit Snacks Box
2. Length of Silver Tab on Tray
3. Width of sink
4. Length of envelope
5. Length of floor tile
6. Length of lab table 7.