4 books × $6, paid with $50 — how much change?
Maya buys four books at six dollars each. She pays with a fifty-dollar bill. How much change does she get?
Let's pull out what we know: four books, six dollars each, and a fifty-dollar bill.
This is a two-step problem. First we'll find the total cost, then we'll find the change.
Step one: let c be the cost. We multiply — four times six.
Four times six is twenty-four. The books cost twenty-four dollars.
Step two: let m be the change. We subtract — fifty minus twenty-four.
Fifty minus twenty-four is twenty-six.
Let's check: twenty-four plus twenty-six equals fifty. It works!
Maya gets twenty-six dollars in change. Great two-step thinking!