Question

Marie has a collection of shark teeth. When her uncle returns from vacation, he brings her 141414 more shark teeth. Now Marie has 515151 shark teeth.

How many shark teeth did Marie have before her uncle's gift?

Answer 1

37

Explanation:

Before her uncle's gift, Marie had 14 fewer than 51 shark teeth:

51 -14 = 37

Marie had 37 shark teeth.