Little Juan and Juanita decide to sell some items at a school jumble sale. They want to sell everything for 7p. El Nombre explains how, with the help of addition, a mixture of coins can be used to max 7p, which does not exist as a single coin.
Children could be given the challenge of finding as many different combinations of coins to make totals up to 10p. To extend the activity when children are more confident, the total amount to be made could be increased.