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 Q]: For Halloween Janet and her sister combined the candy they received . Janet had 34 pieces of candy while her sister had 33 . If they ate 4 pieces the first night , how many pieces do they have left ?
[EX A]: 63

[EX Q]: Joan grew 8 watermelons and 4 turnips . Tom grew 9 watermelons . How many watermelons did they grow in total ?
[EX A]: 17

[EX Q]: Jonah added 0.3 cup of yellow raisins and 0.4 cup of black raisins to a batch of trail mix . How many cups of raisins did Jonah add in all ?
[EX A]:
0.7