Question

evaluate.
$80 \div 2^3 + 2 \cdot 6^2 - 3$

\\(\circ\\) 28

\\(\circ\\) 31

\\(\circ\\) 40

\\(\circ\\) 79

Explanation:

Step1: Calculate exponents

$$\begin{align*} 2^{3}&=2\times2\times2 = 8\\ 6^{2}&=6\times6=36 \end{align*}$$

Step2: Do division and multiplication

$$\begin{align*} 80\div8& = 10\\ 2\times36&=72 \end{align*}$$

Step3: Do addition and subtraction

$$10 + 72-3=79$$

Answer:

79