1. Look at the unmarked lines on a metric ruler. There are 2 separate units of measurements on a standard metric ruler—centimeters and millimeters. The ... 2. Line up the end of your ruler with the object you want to measure. More specifically, place the line marked "0" up against the far edge of your object. Make ... 3. Multiply the centimeter measurement just before the end of your object by 10. Note the number of the last full centimeter measurement. Multiplying this ...
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