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

[Q]: There were 16 friends playing a video game online when 7 players quit . If each player left had 8 lives , how many lives did they have total ?
[A]: 72


[Q]: Isabel had 72 homework problems . She finished 32 of them but still had 5 pages of problems to do . If each page has the same number of problems on it , how many problems are on each page ?
[A]: 8


[Q]: Maria needs 21 cartons of berries to make a berry cobbler . She already has 4 cartons of strawberries and 8 cartons of blueberries . How many more cartons of berries should Maria buy ?
[A]:
9