Math Mammoth Grade 6-A worktext is the student worktext for first 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. The first chapter reviews the four operations with whole numbers (including long division), place value, and rounding. Students are also introduced to exponents. Chapter 2 delves into algebra topics, such as expressions and equations, inequalities and using two variables. Chapter 3 has to do with decimals, reviewing all of decimal arithmetic. Chapter 4 is about ratios, rates, unit rates, equivalent ratios, and problem solving using bar models. In chapter 5, the goal is to develop a basic understanding of percent, to see percentages as decimals, and to learn to calculate discounts. A companion to this book, Math Mammoth Grade 6-B worktext covers the second half of 6th grade math (available separately at Lulu). Also available are the answer keys and a book containing cumulative reviews and chapter tests.