instruction:
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.
question:
there were 46 passengers on the bus . 19 passengers got off at the first stop . 15 passengers got off at the second stop . how many passengers were left on the bus ?
answer:
12

question:
they served a total of 179 adults and 141 children if 156 of all the people they served are male how many are female ?
answer:
164

question:
there are 100 books on a shelf . 32 of them are history books 25 of them are geography books and the rest are math books . how many math books are there on the shelf ?
answer:
43