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: There were 16 roses and 3 orchids in the vase. Jessica cut some more roses and orchids from her flower garden. There are now 7 orchids and 13 roses in the vase.

Question: How many orchids did she cut?

Answer: 4

Question: Context: Mary is baking a cake. The recipe calls for 14 cups of flour and 6 cups of sugar. She already put in 5 cups of flour.

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

Answer: 3

Question: Context: Winter is almost here and most animals are migrating to warmer countries. There are 8 bird families living near the mountain. If 42 bird families flew away to africa and 31 bird families flew away to asia

Question: How many more bird families flew away to africa than those that flew away to asia?

Answer:
11