Derive Unit Rates with Metric Units 5-119
Derive unit rates for length, mass (weight), and liquid volume. Use prefixes (kilo=thousand, milli=thousandth, centi=hundredth) to make unit rates easier to remember. If 63,000 m = 63 km, how many meters is 1 kilometer? Use a bar model to see 1,000 m = 1 km. 63,000 m = 63 km, so 7,000 m = 7 km and 1,000 m = 1 km.
