ORDER OF OPERATIONS

ORDER OF OPERATIONS

Let us learn to solve arithmetic expressions

Let us consider the expression 10- 2 x 3.
If we subtract first 10 - 2 x 3 = 8 x 3 = 24
If we multiply first 10- 2 x 3 = 10- 6 = 4

We are getting two different answers. Hence, to avoid confusions and always arrive the correct answer, we follow a definite order to evaluate an expression.

The rules to follow when you evaluate an arithmetic expression.
1. Do operations in Parentheses first
2. Exponents
3. Multiplication/ Division (Go from left to right, do whichever operation comes first)
4. Addition/ Subtraction (Go from left to right, do whichever operation comes first)

Parentheses→Exponents→Division→Multiplication→Addition→Subtraction. Form an acronym, PEDMAS rule of Operations.

A few arithmetic expressions have been evaluated step- by- step using PEDMAS for easy understanding. Have a look before you download our free worksheets for practice.

  

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