Question

Solve the expression $4\times 2^3$.

• A. 32
• B. 30
• C. 512

Answer 1

The correct option is A 32

The expression $4\times 2^3$ has multiplication and exponential operations.

According to PEMDAS rule, the exponential operation is performed first then followed by multiplication.

$\Rightarrow 4\times 2^3=4\times (2\times 2\times 2)=4\times 8$

The resulting expression becomes $4\times 8$

$\Rightarrow 4\times 8=32$