Math Mammoth Grade 2-B, comprises a complete math curriculum for the second half of second grade mathematics studies. The curriculum meets and exceeds the Common Core standards.The first half of second grade is covered in Math Mammoth Grade 2-A.This product, Math Mammoth Grade 2-B, covers three-digit numbers (chapter 6), measuring (chapter 7), regrouping in addition and subtraction (chapter 8), counting coins (chapter 9), and an introduction to multiplication (chapter 10). The rest of the to