instruction:
You are given a math word problem and you are supposed to apply a single mathematical operator 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 8 ducks swimming in the pond . 3 ducks flew away . how many ducks are still swimming in the pond ?
answer:
5

question:
andrew is having his friends over for game night . so he decided to prepare the snacks and the games . he started by making mini sandwiches . if he has 4 friends coming over and he made 3 sandwiches for each one of them how many sandwiches did he make in total ?
answer:
12

question:
a dvd book holds 126 dvds . there are 81 dvds already in the book . how many more dvds can be put in the book ?
answer:
45