"Dimensions math has been adapted from Discovering mathematics, first published by Star Publishing Pte Ltd in 2007"--Title page verso

Chapter 1, Factors and multiples -- Chapter 2, Real numbers -- Chapter 3, Introduction to Algebra -- CHapter 4, Algebraic manipulation -- Chapter 5, Simple equations in one variable -- Chapter 6, Ratio, rate, and speed -- Chapter 7, Percentage -- Chapter 8, Angles, triangles, and quadrilaterals -- Answers

"Dimensions math is a series of textbooks designed for students in middle schools. This series of books follows the Singapore Mathematics Framework and covers the topics in the Common Core State Standards"--Page 4 of cover

Grade 7