Using Subtraction to Measure the Difference in Height

This video tutorial teaches how to find the difference in measurement between two objects by using subtraction. It covers the use of standard and metric units, explains how to measure using a ruler even if it doesn't start at zero, and demonstrates comparing the heights of two dogs. The tutorial emphasizes counting spaces on a ruler and using subtraction to calculate differences, illustrating the process with a practical example involving dog heights.

What is the total number of spaces counted from 30 centimeters to 62 centimeters?

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Explain how the ruler works like a number line in measuring height.

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How can you find the difference in height between two dogs using a ruler?

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