## Related Words

# NUMERICAL EXPRESSION

## Definition of Numerical Expression

The term 'numerical' means 'involving numbers' and the term 'expression' means 'phrase'.

A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols

### More About Numerical Expression

A numerical expression represents a particular number.

For example, the numerical expression 4 + 20 - 7 in the example above simplifies to the number 17.

### Examples of Numerical Expression

The following are some examples of numerical expressions.

4 + 20 - 7, (2 + 3) - 7, (6 × 2) ÷ 20, 5 ÷ (20 × 3), 5 × (4^{2} + 3)

### Video Examples: How to Simplify Numerical Expressions

### Solved Example on Numerical Expression

**Ques: **Evaluate the numerical expression: 23 + 15 - 8.

#### Solution:

- Step 1: 23 + 15 - 8 [Given.]
- Step 2: = 38 - 8
- Step 3: = 30
- Step 4:So, 23 + 15 - 8 = 30.

**Ques: **Evaluate: 10^{2} - 10 + 100^{1}

#### Solution:

- Step 1: 10
^{2}- 10 + 100^{1}[Given.] - Step 2: = 10 × 10 - 10 + 100
- Step 3: = 100 × 10 + 100
- Step 4: = 90 + 100
- Step 5: = 190
- Step 6: So, 10
^{2}- 10 + 100^{1}= 190.

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