PEMDAS Rule | Order of Operations

PEMDAS is a rule that defines the order in which mathematical operations are performed in an expression.

It stands for:

Note: Multiplication and division have equal priority, so you do them from left to right. The same is true for addition and subtraction.

Example: 5 + 2[10 - 3(4 - 2)] ÷ 2

We will begin by working from the inside of the brackets. We will begin by solving the innermost bracket and then proceed to the outermost bracket.

Step 1: Solve for 4 - 2, which equals 2. The equation becomes 5 + 2[10 - 3(2)] ÷ 2.

Step 2: Compute 3(2), which equals 6. The equation becomes 5 + 2[10 - 6] ÷ 2.

Step 3: Now, between the parentheses, answer 10 - 6 = 4. Our equation is now 5 + 2[4] ÷2.

Step 4: Then, address what's between the brackets 2[4] = 8. Our expression now looks like 5 + 8 ÷ 2.

Step 5: Following PEMDAS, we divide first 8 ÷ 2 = 4. The equation becomes 5 + 4.

Step 6: Finally, add 5 and 4, and we have our final answer: 9.

By using PEMDAS, you may effortlessly solve hard arithmetic problems and thrive in your math career.

PEMDAS vs BODMAS

The following table compares PEMDAS with BODMAS

➢Practice: Solved Examples