# Car Full of Coins

Here's your nightly math! Just 5 quick minutes of number fun for kids and parents at home. Read a cool fun fact, followed by math riddles at different levels so everyone can jump in. Your kids will love you for it.

# Car Full of Coins

June 9, 2015

When you buy something that costs, say, \$20, it’s easiest to use a \$20 bill, not 20 little \$1 bills – or worse yet, 2,000 pennies. But that’s what a man in China did last month, when he bought a new car using 660,000 coins. He also threw in 20,000 small bills. The pile of money weighed 4 tons, and covered a 13-foot stretch of the showroom floor. All told, the car was worth about \$100,000 in U.S. money, and the coins were each worth about 16 cents. We’re wondering how he brought all those coins to the car shop if he didn’t yet have a car to drive them there…

Wee ones: Which weighs more, this 4-ton pile of money or a 3-ton elephant?

Little kids: The man collected the coins at his gas station. If he collects 5 coins today, 2 tomorrow and 1 the next day, how many coins does he have?  Bonus: If he needs 18 coins in total to buy a tree-shaped air freshener for his car, how many more coins does he need?

Big kids: If you’re buying tires for your car for \$600 and you pay in \$100 bills, how many bills do you need?  Bonus: If the man paid with 660,000 coins and 20,000 bills, how many pieces of money in total did he hand over?

The sky’s the limit: If the car cost \$100,000 in the U.S. and you paid only with dimes (which are worth 1/10 of a dollar), how many dimes would you need?