Mary is baking a cake. The recipe calls for 11 cups of sugar and some more cups of flour. She already put in 3 cups of flour. If she still needs to add 6 more cups of flour how many cups of flour did the recipe require?
First, we need to find how many cups of flour the recipe requires in total. The recipe already has 3 cups of flour, and it needs 6 more cups of flour, so it needs a total of 9 cups of flour. 

Therefore the answer (numeric) is: 

9