Allan brought 27 balloons and Jake brought 15 balloons to the park. Jake then bought 19 more balloons at the park. How many more balloons did Jake have than Allan in the park?
Allan brought 27 balloons and Jake brought 15 balloons to the park. Jake then bought 19 more balloons at the park.

That means Jake had a total of 34 balloons in the park. Allan had 27 balloons in the park. 

34 - 27 = 7

So Jake had 7 more balloons than Allan in the park.