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

Ex Input:
The Montoya family spends 0.6 their budget on groceries and another 0.2 going out to eat . Altogether , what fraction of their budget does the Montoya family spend on food ?

Ex Output:
0.8


Ex Input:
There are 40 boys and some girls on the playground . There are 117 children altogether . How many girls are on the playground ?

Ex Output:
77


Ex Input:
Dan had 97 baseball cards , and 8 were torn . Sam bought 15 of Dan 's baseball cards . How many baseball cards does Dan have now ?

Ex Output:

82