Question

Amy is making a cookie recipe which uses 1/2 teaspoon of sugar per batch. She wants to make 5 batches. How many teaspoons of sugar will she use?

Answer 1

The answer is 2 and a half 2 1/2

Answer 2

If 1 patch = 1/2 teaspoon
then 5 patches = x             (cross multiply)
1 × x = 5 × 1/2
x = 5/2
x = 2  1/2
therefore 5 patches would use two and a half teaspoons