evaluate a numerical expression


Definition of Evaluate a Numerical Expression

  • To evaluate a numerical expression, we simplify it by using the given operations to obtain a single numerical value.

More about Evaluate a Numerical Expression

  • Order of operation or PEDMAS (Parentheses, Exponentiation, Division/Multiplication, Addition/Subtraction) rule is applied to evaluate a numerical expression.

Example of Evaluating a Numerical Expression

  • To evaluate 23 + 25 ÷ (25 - 20), we first perform the operation within parentheses and then apply division and addition.
    23 + 25 ÷ (25 - 20) = 23 + 25 ÷ 5
    = 23 + 5
    = 28

Solved Example on Evaluating a Numerical Expression

What is the simplest form of the given numerical expression?
(- 9)(54)(- 5)
Choices:
A. 28130
B. 28127
C. 28123
D. 28125
Correct Answer: D
Solution:
Step 1: (- 9)(54)(- 5)
Step 2: (- 9)(5 × 5 × 5 × 5)(- 5) [Since bn = b × b × b ×.... n times.]
Step 3: 28125

Related Terms for Evaluating a Numerical Expression

  • Numerical Expression
  • Order of Operations
  • Simplify