Decimals in Use
Paychecks and Expenses
Luis works 2 hours a day, 4 days a week. How many hours a week does Luis work?
2 hours/day x 4 days/week = 8 hours/week. 8 hours? Guess who will not be jumping into a roomful of money? Luis.
Prices and Counting Change
Nathan buys a sandwich for $6.50. It's one of those "gourmet" sandwiches, which just means that it's a regular turkey sandwich but comes with a packet of dijon mustard. Anyway, he pays with a $10 bill. Assuming the cashier doesn't screw things up, how much change does Nathan get?
$10 - $6.50 = $3.50, so Nathan gets $3.50 in change.
Kate and Jim ate at a restaurant. The total bill was $56.80. They want to leave only a 10% tip because their server spilled two drinks and one plate of food into their laps. How much of a tip should they leave?
Sharing Work (and Cookies)
A librarian has 50 books that need to go back on the shelves. She has her five student helpers divide up the books evenly. How many books will each student put back on the shelves? (See earlier exercise for definition of the word "book.")