## Pre-Algebra Tutorial

*Order of Operations Practice Problem*

#### Intro

The order of operations can be tricky. A key to ensuring computation is accurate, is to review the order of operations. This problem has a twist that also involves calculating negative numbers.

#### Sample Problem

Solve: 7-[8-4(3-5)]

#### Solution

Order of Operations*from left to right*

P-parenthesis

E-exponents

M-multiplication

D-division

A-addition

S-subtraction

7-[8-4(3-5)] Evaluate the innermost grouping symbol first.

= 7-[8-4(-2)] Perform multiplication before subtraction.

= 7-[8-(-8)] When subtracting negative numbers with unlike symbols, follow the rules.

=7-16 Apply the rule for subtraction.

=7+(-16)= -9

Answer: -9

# About The Author

Elementary Education Instruction |

I have completed a Bachelor’s Degree in Elementary Education, as well as a Master’s Degree in School Leadership. In addition, my 10 years of teaching experience will enable me to foster growth in student learning. My experience includes working with all elementary grade levels (K-5th) as well as... |