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.

Video Examples: How to Simplify Numerical Expressions


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

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: 102 - 10 + 1001

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.