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.

[EX Q]: In fourth grade there were 4 students at the start of the year . During the year 3 students left and 42 new students came to school . How many students were in fourth grade at the end ?
[EX A]: 43

[EX Q]: Harry starts with 79 apples . He buys 5 more . How many apples does Harry end with ?
[EX A]: 84

[EX Q]: Cheryl starts with 8 Skittles . Kathryn gives Cheryl 89 more . How many Skittles does Cheryl end with ?
[EX A]:
97