You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Kelly has 121 Nintendo games . How many does Kelly need to give away so that Kelly will have 22 games left ?
99

Billy has 62 crayons . 52 are eaten by a hippopotamus . How many crayons will Billy have ?
10

There are 2 orchid bushes currently in the park . Park workers will plant 4 orchid bushes today . How many orchid bushes will the park have when the workers are finished ?
6