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.

While making pastries , a bakery used 0.2 bag of wheat flour and 0.1 bag of white flour . How many bags of flour did the bakery use in all ?
0.3

Megan had 217 markers . Robert gave her 109 more markers . How many markers does Megan have altogether ?
326

Sara got fast food for lunch . Sara spent $ 5.36 on a hotdog and $ 5.1 on a salad . What was the total of the lunch bill ?

10.46