Question

$40 - 4^{2} \times 2 + 1 = \square$
options: 7, 8, 9, 4, 5, 6

Explanation:

Step1: Calculate the exponent

$4^2 = 16$

Step2: Perform multiplication

$16 \times 2 = 32$

Step3: Do subtraction first (left to right)

$40 - 32 = 8$

Step4: Do final addition

$8 + 1 = 9$

Answer:

9