problem
Charitable Pennies
Investigate the different ways that fifteen schools could have given money in a charity fundraiser.
We have exactly 100 coins. There are five different values of coins. We have decided to buy a piece of computer software for 39.75. We have the correct money, not a penny more, not a penny less! Can you discover what the five different types of coins are worth and how many of each we have saved?
How much lighter will £5 worth of 5p's be with these new lighter coins?
Dan and Ann have 9 and 8 coins respectively. What is the smallest number of coins they must swap so they end up with equal amounts of money.