instruction:
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.
question:
Carefully following a recipe , Kenny used exactly 0.16666666666666666 cup of oil and 1.1666666666666667 cups of water . How many cups of liquid did Kenny use in all ?
answer:
1.3333333333333333


question:
231 birds were sitting in a tree . Some more fly up to the tree . Then there were 312 birds in the tree . How many more fly up to the tree ?
answer:
81


question:
There were 6 roses in the vase . Mary cut some roses from her flower garden . There are now 16 roses in the vase . How many roses did she cut ?
answer:

10