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.

A book store had 4 books in the bargin bin . If they sold 3 books , but then put 10 more in the bin , how many books would be in the bin ?
11

Mrs. Hilt looked at her car 's odometer before a trip . The odometer showed that she had traveled 212.3 miles . When she stopped for lunch , the odometer read 372 . How many miles had she traveled ?
159.7

30 dogs are barking . 10 more dogs start to bark . How many dogs are barking ?
40