Posted on October 5, 2017 by admin Adding 10, 15, 20, 25, …,, Practice 2 5 + 35 20 + 30 20 + 15 10 + 30 30 + 45 5 + 40 25 + 45 10 + 35 10 + 35 10 + 35 Post navigationPrevious post: Adding 20, Practice 3Next post: Question #1