instruction:
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.
question:
Context: The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped 19 inches. The grasshopper jumped 4 inches farther than the frog and the mouse jumped 44 inches lesser than the frog. 

 Question: How far did the frog jump?
answer:
15


question:
Context: You have read 8 books from the ' crazy silly school ' series. If there are a total of 14 different books in the ' crazy silly school ' series 

 Question: How many more do you still have to read?
answer:
6


question:
Context: Mary is baking a cake. The recipe calls for 11 cups of sugar and 9 cups of flour. She already put in 12 cups of flour and 10 cups of sugar. 

 Question: How many more cups of sugar does she need to add?
answer:

1