Math Mammoth Grade 6-B worktext is the student worktext for the second half of grade 6, and part of the Math Mammoth Grade 6 curriculum. This is the 2014-2021 edition; the newer, 2022 edition is also available at Lulu. In this book, the main areas we focus on are: * prime factorization, GCF, and LCM * a review of fraction arithmetic, plus division of fractions * the concept of integers, coordinate grid, addition & subtraction of integers * geometry: review of quadrilaterals & drawing problems; area of triangles & polygons; volume of rectangular prisms with fractional edge lengths; surface area * statistics: concept of distribution, measures of center, measures of variation, boxplots, stem-and-leaf plots, histograms A companion to this book, Math Mammoth Grade 6-A worktext covers the first half of 6th grade math (available separately at Lulu). Also available are the answer keys and a book containing cumulative reviews and chapter tests.