Answer
$8$
Work Step by Step
To evaluate $4(15\div3+2)-10\cdot2$ using a scientific calculator, press the following keys in the specified order:
Press $\boxed{4} \quad \boxed{\times} \quad \boxed{(} \quad \boxed{1} \quad \boxed{5} \quad \boxed{\div} \quad \boxed{3} \quad \boxed{+} \quad \boxed{2} \quad \boxed{)} \quad \boxed{-} \quad \boxed{1} \quad \boxed{0} \quad \boxed{\times} \quad \boxed{2} \quad \\
\text{ then} \quad \boxed{=} \text{ or } \boxed{\text{ENTER}}$
to obtain:
$$4(15\div3+2)-10\cdot2=8$$
