Units of measure are used to quantify different physical quantities such as length, mass, time, and volume. It is important to understand the different units of measure and how to convert from one unit to another.

Common Units of Measure

Here are some common units of measure for different quantities:

Length: meter (m), centimeter (cm), kilometer (km)
Mass: gram (g), kilogram (kg)
Time: second (s), minute (min), hour (hr)
Volume: liter (L), milliliter (mL), cubic meter (m³)

Converting Units

To convert from one unit to another, you can use conversion factors. Here are some examples:

Example 1: Converting Length

If you want to convert 2 meters to centimeters, you can use the conversion factor 1 meter = 100 centimeters:

2 meters * 100 centimeters/1 meter = 200 centimeters

Example 2: Converting Mass

To convert 500 grams to kilograms, you can use the conversion factor 1 kilogram = 1000 grams:

500 grams * 1 kilogram/1000 grams = 0.5 kilograms

Practice Problems

Now, let's try some practice problems to test your understanding of units of measure:

1. Convert 3 kilometers to meters.

2. Convert 750 milliliters to liters.

3. Convert 5 hours to minutes.

4. Convert 2.5 kilograms to grams.

Conclusion

Understanding units of measure and how to convert between different units is an important skill in math and science. Practice using conversion factors and applying them to different quantities to solidify your understanding.