Bruce needed two (cupful) of sugar to make punch for four (grandchild).

What is your question?

If each grandchild gets half a cup of sugar in punch, Bruce missed the class on nutritional errors.

To determine the amount of sugar Bruce needed to make punch for his four grandchildren, we need to calculate the amount of sugar needed per grandchild and then multiply it by the number of grandchildren.

Let's break down the information provided:
- Bruce needed two cupfuls of sugar
- There were four grandchildren

To find the amount of sugar needed per grandchild, we divide the total amount of sugar (two cupfuls) by the number of grandchildren (four):

2 cupfuls / 4 grandchildren = 0.5 cupfuls of sugar per grandchild

Therefore, Bruce needed 0.5 cupfuls of sugar for each of his four grandchildren.