Question

Find the value of the mathematical expression below.
$(1^4\times 2^2+3^3)-2^5÷4$

• A. 0.25
• B. 23
• C. 18
• D. None of the above

Answer 1

The correct option is B 23

Given mathematical expression:
$(1^4\times 2^2+3^3)-2^5÷4$
According to PEMDAS, the expression within the parentheses is to be solved first.
$=(1\times 4+21)-2^5÷4$

$=(4+27)-2^5÷4$

$=31-2^5÷4$
According to PEMDAS, the exponents in the expression are to be solved now.
$=31-32÷4$
According to PEMDAS, division is to be solved now.
$=31-8$
$=23$