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.
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Question: Context: A grocery store had 19 bottles of diet soda and 60 bottles of regular soda.

Question: How many more bottles of regular soda than diet soda did they have?

Answer: 41

Question: Context: There were 7 roses in the vase. Jessica cut some more roses from her flower garden which had a total of 59 roses. There are now 20 roses in the vase.

Question: How many roses did she cut?

Answer: 13

Question: Context: Mary is baking a cake. The recipe calls for 7 cups of sugar and 10 cups of flour. She already put in 4 cups of sugar.

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

Answer:
3