instruction:
You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.
question:
Keith has 20 books. Jason has 21 books. How many books do theyhave together?
answer:
41.0


question:
There are 39 dogwood trees currently in the park. Park workers willplant 41 dogwood trees today and 20 dogwood trees tomorrow. Howmany dogwood trees will the park have when the workers arefinished?
answer:
100.0


question:
Alyssa picked 42 pears and Nancy picked 17 pears from the pear tree.How many pears were picked in all?
answer:

59.0


