Shopping list task

Yesterday we did a shopping list we got a catalogue and we had to draw up a shopping list. We had to have 10-15 items. Once you had made your shopping list ,You had to estimate how much it would cost. You then rounded it up or down to the nearest number and got your answer. After that you had to swap shopping lists and the other person would work out how much it costs on the caculator.It was a fun task and i really enjoyed it. I found it was easyier to do the rounding.