Order Operations 4 step

Order Of Operations (4-Step Problems)

Lesson 1

A set of rules for arithmetic operations are devised to perform calculations involving more than one arithmetic operation.

Rule 1: First perform any calculations inside parentheses.

Rule 2: Next perform all multiplications and divisions, working from left to right.

Rule 3: Lastly, perform all additions and subtractions, working from left to right.

Problem: Evaluate 4 x 4 x (5 + 2) + 4 using the order of operations.

Solution Firstly solving the parenthesis as

Step 1:

4 x 4 x (5 + 2) + 4 = 4 x 4 x 7 + 4

Solution Then multiply 4 and 4 i.e. 4 x 4 x 7 + 4 = 16 x 7 + 4

Step 2:

Solution Then multiply 16 and 7 i.e. 16 x 7 + 4 = 112 + 4

Step 3:

Solution Then add 112 and 4 i.e. 112 + 4 = 116

Step 3:

Solution The answer is: 116

Step 4:

Complete

Try two practice problems:

Evaluate each problem.

A. ((15 – 4) + 3) x 5 + 4

B. 7 x ((6 - 5) x 4) X 2