Answer:
2 one yard pieces she can cut.
Explanation:
Sarah's craft project uses pieces of yarn that are a yard long.
If she has a piece of yarn that is 3 yards long, then we have to find the number of pieces of length 1 yard that she can cut and still she will have 1 yard left.
Therefore, she has to cut (3 - 1) = 2 yards of yarn and make it two pieces of 1 yard of yarn.
Hence, 2 one yard pieces she can cut. (Answer)