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

[EX Q]: Dan grew 42 turnips and 38 cantelopes . Jessica grew 47 turnips . How many turnips did they grow in total ?
[EX A]: 89

[EX Q]: The school is planning a field trip . There are 9 students and 3 seats on each school bus . How many buses are needed to take the trip ?
[EX A]: 3

[EX Q]: Joan has 8 orange balloons but lost 2 of them . How many orange balloons does Joan have now ?
[EX A]:
6