To read a metric ruler, each individual line represents .10 (1/10) of a centimeter, or 1 millimeter. Notice when converting from centimeters to millimeters, the decimal point is moved one place to the right. To convert millimeters to centimeters, move the decimal point one place to the left. Look at the ruler below.
How to read a ruler.. A ruler used to be called a rule, and rulers would be rules.. a centimeter, if you measure 7 marks after a centimeter, it is 1.7 centimeters .
How to Read a Tape Measure. Find/read the markings. On a standard tape measure, the biggest marking is the inch mark (which generally has the biggest number, if it has them). As the increments decrease, so does the length of the mark. Read 1 inch. Read one-half inch. The remaining markings follow a similar pattern.
Below I have created an infographic and a video on how to read a tape measure efficiently. We will refer to this as the â€œbig inchâ€. This is the main way I learned .