Question

Anais bought 3 1/2 yards of ribbon. She had 2 feet 10 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?
Anais used _____ inches of ribbon.

The solution is .

Answer 1

3 1/2 yards = 54 inches
2 feet 10 inches =34 inches

She had 2 feet 10 inches of ribbon left after trimming some curtains, that means

54 inches - X =34 inches,   54 inches -34 inches = X, X=20 inches
The solution is 20 inches