Two-Digit Numbers with Tadpoles

Learning what the two digits of a two-digit number represent is a key standard of Common Core math. Seeing these numbers represented as tadpoles will make the idea even more concrete to young mathematicians, and appealing. This valuable volume, a blending of science and math information, helps readers understand the key concept of two-digit numbers as well as helps them assess their understanding through questions in the text and an answer key.