Math Mammoth Grade 7-A Worktext (2025 edition)

Math Mammoth Grade 7-A worktext is the first student worktext of the Math Mammoth Grade 7 curriculum, and covers approximately the first half of 7th grade math. This is the 2025 edition. We start out with an introduction to basic algebra, which is in many ways a review of the same topics from 6th grade. The first chapter reviews the order of operations, the concepts of an expression and equation, and the distributive property. Students learn about the commutative and associative properties of addition and multiplication, and they simplify expressions that don’t involve negative numbers. In chapter 2, we study integers and their operations in detail. Some of this is, again, review from 6th grade, and some of it is new. The four operations of integers are explained with the help of two visual models: the number line and counters, hopefully providing an intuitive understanding of the processes. Students need to be able to add, subtract, multiply, and divide integers when they learn to solve equations in chapter 3. In the end of the chapter students also learn about negative fractions. In the next chapter (chapter 3) students study simple one-step equations. They already know the basics of how to solve these types of equations from 6th grade, but this time we use negative numbers in them. Chapter 4 is titled Rational Numbers, which are simply fractions and certain decimals, so the student is already very familiar with them. The goal of the chapter is to be able to add, subtract, multiply, and divide both positive and negative fractions and decimals and also do more complex calculations with them. We also solve simple equations involving fractions and decimals and learn about complex fractions. The last chapter in part 7-A focuses on linear equations. The student learns to solve various types of linear equations and practices writing such for simple word problems. We also study linear inequalities, but not to the same depth as linear equations. The part 7-B, an answer key book, and a book containing cumulative reviews and chapter tests are available for purchase separately on Lulu.