What could you do if you were a plus sign? You could add things together. You could add people and animals. You could add up and down or side to side. Discover even more answers in this installment of the bestselling MATH FUN series by Trisha Speed Shaskan! With creative examples, easy-to-understand text, and engaging art, these entertaining and educational picture books books are perfect for young math lovers to read aloud or read alone.