How it works
To find how much you spend, add the prices together.
Change is what the shop gives back. Start at the price and count up to the dollar, which is 100 cents.
Take it in friendly steps: up to the next ten, then up to 100.
Worked examples
Two things together
- Maya buys a ball for 57 cents and a kite for 18 cents. How much does Maya spend?
- Add the two prices. Ones first, then tens.
- That is how much is spent.
- So the answer is 75.
Change from a dollar
- A pencil costs 42 cents. Sam pays with a dollar bill. How much change does Sam get?
- A dollar is 100 cents.
- Count up from the price to 100. The jumps you make add up to the change.
- So the answer is 58.
Buy two things, then get change
- Lee buys an apple for 34 cents and a pear for 28 cents. Lee pays with a dollar bill. How much change does Lee get?
- First add the two prices to see the total.
- Then count up from the total to 100 to get the change.
- So the answer is 38.