Define the role of decimals. Write and read decimals in word form. Complete calculations involving decimals in the four basic mathematical functions. Explain how electricity is measured and how the homeowner is charged for it.
Decimals are really a form of fractions.
A decimal is part of a whole. Decimals can also be written as fractions or percentages. This will be covered in a later lesson. Most people are accustomed to working with decimals for we work with money every day. You may not realize it, but when you add two dollar amounts together, you are adding decimal numbers.