1+1=5: And Other Unlikely Additions PDF - ePUB »How much is 1+1? Think the answer is 2? Not always, as this playful approach to addition proves! David LaRochelle takes children on a joyful mathematical journey that will engage their minds and teach them to think about numbers in a creative, outside-the-box way. Brenda Sextons wild and wacky illustrations add layers of witty fun to LaRochelles clever game.