instruction:
You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
question:
Find the product of -2 , -15 , 4 and -1 .
answer:
-120


question:
Shirley sold 20 boxes of Do - Si - Dos . How many cases of 4 boxes , plus extra boxes does Shirley need to deliver ?
answer:
5


question:
There are 3 calories in a candy bar . How many calories are there in 5 candy bars ?
answer:

15