Eric and the Red Planet by Caroline Glicksman
Eric is a very unusual bear. He's red and he's very, very clever, especially with numbers. He loves numbers as much as honey. So put honey and numbers together and you get Eric's dream breakfast - Honey Number Puffs. Every morning, Eric adds up his breakfast cereal, but one day, a special card falls out. Eric has won a trip to the space station! He can see how all the astronauts train and even go inside the special honey fueled rocket that they travel to Mars in. But Eric's curiosity about numbers gets him into a very sticky situation, and before he knows it, he's lifted off towards the Red Planet. Can his love of honey and numbers get him back safely?