The Dimensions Math Textbook 5A by Singapore Math Inc. is a comprehensive study guide specifically designed for students aged 10-11 years. With a publication date of January 1, 2017, this trade paperback book contains 231 pages of valuable educational content focused on mathematics. The textbook covers various math topics in an engaging and informative manner, making it a valuable resource for students in both high school and elementary school levels. With its dimensions of 11 x 8.5 x 0.75 inches and a lightweight design of 6.4 ounces, this textbook is a convenient and practical tool for students looking to enhance their math skills.