\( \ldots = 640 \div 80 \)

Did you know that division is one of the four basic arithmetic operations? In this case, \(640 \div 80\) makes calculations a breeze. When you simplify, you find that \(640\) can be expressed as \(8 \times 80\), simplifying your math to \(8\). So, the answer is \(8\)—and now you can impress your friends with your division prowess! In everyday life, division pops up in various scenarios, like splitting a bill at a restaurant or calculating how many pizza slices everyone gets. For instance, if you have 640 calories in a dish and want to know how many calories you'd get per serving with 80 servings, it’s practical math! You’ll find that each serving is just \(8\) calories. How handy is that?