Calculating Cat has 5 coins in her purse.
Think about which coins they could be. Get some coins and work out the possibilities.
What is the largest amount that could be in the purse? Which coins would that be?
What is the smallest amount that could be in the purse? Which coins would that be?
Digit Dog thinks that Calculating Cat might have 6p in her purse. Which coins is he thinking of? What about 10p?
Explore which coins could be in the purse. How many different amounts could there be?
Record the different amounts you have found.
Organise your answers so that you can be systematic and work out all the possible amounts.
What if there were fewer coins in the purse? Try it with just 2 or 3 coins.
What if the coins in the purse were silver coins?
What if there were only 1p, 2p, 5p and 10p coins in the purse?
What if no coin was worth more than 20p?
Digit Dog Challenges 