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

Theresa has 32 crayons . Janice has 12 crayons . She shares 13 with Nancy . How many crayons will Theresa have ?
19

Johnny practiced for the track team and ran 3 laps per minute . How many minutes did it take Johnny to run 10 laps ?
3.33333

Aaron starts with 81 erasers . He gives 34 to Doris . How many erasers does Aaron end with ?

47