7.C.6: Use proportional relationships to solve ratio and percent problems with multiple operations, such as the following: simple interest, tax, markups, markdowns, gratuities, commissions, fees, conversions within and across measurement systems, percent increase and decrease, and percent error.

Each step between the prefixes is 10. In other words, there are 10 millimeters in 1 centimeter. To jump from millimeters to decimeters, you would have 10 x 10 or 100, so there are 100 millimeters in 1 decimeter. The units get larger as you move to the left. The smallest units are on the right. A Kilometer is about .6 of a mile. A millimeter is about the size of a hair.

Copy this chart into your math notebook. Put a 10 in between each prefix. Use your chart to answer the following questions.

1) How many centimeters are in 1 meter?

2) How many decimeters are in 1 decameter?

3) How many meters are in 1 kilometer?

Our standard states that we need to use a proportion to convert within the metric system. Follow the same steps from the Customary System Lesson to write a proportion.

1) Write an empty proportion using labels for the numerators and denominators.

2) Write the number and x from the question to create the first ratio.

3) Use the reference sheet or you metric chart to create the second ratio.

4) Solve the proportion.

Here are examples from your homework. Metric Conversion Example.pdf

Let's do some homework problems together.