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.

[Q]: Tom went to 4 hockey games this year, but missed 7. He went to 9games last year. How many hockey games did Tom go to in all?
[A]: 13.0


[Q]: Joan has 10 books. Tom has 38 books. How many books do theyhave together?
[A]: 48.0


[Q]: Craig walked 0.2 mile from school to David's house and 0.7 mile fromDavid's house to his own house. How many miles did Craig walk in all?
[A]:
0.9