Allan brought 12 balloons and Jake brought 42 balloons to the park. Jake then bought 35 more balloons at the park. How many more balloons did Jake have than Allan in the park?
Allan brought 12 balloons and Jake brought 42 balloons to the park.

Jake then bought 35 more balloons at the park.

That means Jake had a total of 42 + 35 = 77 balloons in the park. 

Allan had a total of 12 balloons in the park. 

That means Jake had 77 - 12 = 65 more balloons in the park than Allan.