Order of Operations and Expressions

Front

What is the difference between an expression and an equation?

Back

Expressions do not have an equal sign.

Front

Which step would come first in the expression: 20 - 12 + 8 x 5?

Back

8 x 5.

Front

Solve for the following when b = 2: 4 + (b - 1)

Back

5.

Front

Solve for the following when b = 6: 3b

Back

18.

Front

Solve for the following when b = 10: b + 3 x 5

Back

25.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators without an equal sign.

Front

What is an equation in mathematics?

Back

A statement that two expressions are equal, containing an equal sign.

Front

What does the order of operations tell us?

Back

The order in which to perform calculations in an expression.

Front

What is the acronym for the order of operations?

Back

PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

Front

What is the first step in the order of operations?

Back

Perform calculations inside parentheses.