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

Context: Every day Ryan spends a total of 3 hours on learning english and chinese. If he spends 2 hours on learning english everyday 

 Question: How many hours does he spend on learning chinese?
1

Context: Because of the decision Sofia asked the students to suggest specific types of food. If 228 students suggested adding mashed potatoes 337 suggested adding bacon to the menu and 23 suggested adding tomatoes 

 Question: How many more students suggested bacon than those that suggested tomatoes?
314

Context: Marco and his dad went strawberry picking. Together their strawberries weighed 20 pounds. His dad's strawberries weighed 17 pounds. 

 Question: How much did marco's strawberries weigh?

3