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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

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 × (42 + 3)

Solved Example on Numerical Expression

Solution:

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

Solution:

• Step 1: 102 - 10 + 1001 [Given.]
• Step 2: = 10 × 10 - 10 + 100
• Step 3: = 100 × 10 + 100
• Step 4: = 90 + 100
• Step 5: = 190
• Step 6: So, 102 - 10 + 1001 = 190.

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