Module 5 Vocabulary Part 1

Front

Base

Back

In a power, the number used as a factor. In 10³, the base is 10. That is, 10³= 10x10x10.

Front

Exponent

Back

In a power, the number that tells how many times the base is used as a factor. In 5³, 3 is the exponent. That is 5³= 5x5x5

Front

Powers

Back

A number expressed using an exponent. The power 3² is read three to the second power, or 3 squared.

Front

Numerical Expression

Back

A combination of numbers and operations.

Front

Order of Operations

Back

The rules that tell which operation to perform first when more than one operation is used.

1. Simplify the expressions inside grouping symbols.

2. Find the value of all powers.

3. Multiply and divide in order from left to right.

4. Add and substract in order from left to right.

Front

Algebra

Back

A mathematical language of symbols, including variables.

Front

Variable

Back

A symbol, usually a letter, used to represent a number.

Front

Algebraic Expression

Back

A combination of variables, numbers, and at least one operation.

Front

Evaluate

Back

To find the value of an algebraic expression by replacing variables with numbers.