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: Rachel picked 4 apples from her tree. If the tree had 7 apples initially. 

 Question: How many apples are still there on the tree?

Answer: 3


Question: Context: David did 56 more push-ups than Zachary in gym class today. If David did 38 push-ups 

 Question: How many push-ups did Zachary and David do altogether?

Answer: 20


Question: Context: Adam has 3 more apples than jackie. Adam has 9 apples. 

 Question: How many apples does Jackie have?

Answer:
6