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
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