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Question

What is the use of order in numerical expressions?


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Solution

Explain the use of order in numerical expressions.

Order in numerical expressions is particularly useful for specifying the order in which numerical operations can be performed and it helps obtain a proper response for any numerical expression.

In numerical expressions, only a few steps are used to determine the order.

  1. First, resolve the operations within the brackets symbols.
  2. Simplify the powers in the second step.
  3. Solve multiplication and division from left to right in the third step.
  4. Use the left-to-right method for addition and subtraction.

Parentheses, Division, Multiplication, Addition, and Subtraction are the steps to solving numerical expressions in this order.

For example: 30-9+14-20-8

30-9+14-20-8=30-9+14-12 Subtract 8 from 20 and remove the parenthesis.

30-9+14-20-8=30-9+2 Subtract 12 from 14 and remove the curly brackets.

30-9+14-20-8=30-11 Add 9 and 2 and remove the brackets.

30-9+14-20-8=19 The last step subtracts 11 from 30

Hence, Parentheses, Division, Multiplication, Addition, and Subtraction are the steps to solving numerical expressions in this order.


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