Connect the num-bubbles to destroy the num-blocks. Each block comes up with a number, and you need to chain some num-bubbles so that they can add up ..

Connect the num-bubbles to destroy the num-blocks. Each block comes up with a number, and you need to chain some num-bubbles so that they can add up to the number on block. Keep playing till num-blocks occupy all the four places.Drag the pointer on the balls which add up to the number on the coming block