THIS IS NOT ANOTHER MATH WORKBOOK. The Math Detective Agency is a secret math adventure book designed for kids ages 9–12, blending spy thriller elements with challenging mathematical enrichment. Recruits join Professor Zero of CIPHER to recover the stolen Codex from General Minus across 20 secret missions.

This book focuses on teaching mental math shortcuts, secret codes, number tricks, hidden patterns in nature, and famous number mysteries that are often outside the standard classroom curriculum.

• 20 secret missions structured as a detective adventure, not repetitive drills.
• Unlocks mathematical superpowers like mental math shortcuts and secret codes.
• Builds real math confidence without worksheets or repetition.
• Perfect for gifted kids, advanced learners, STEM enthusiasts, and homeschool enrichment.
• Includes full solutions and step-by-step explanations.

• 20 secret missions
• Story chapters with recurring characters
• Sigma-Level bonus challenges
• Full answer key
• Field Agent Certificate

• Format: Paperback
• Age Range: Ages 9–12
• Language: English
• Print Length: 99 pages
• Dimensions: 178 x 6 x 254mm (or 17.78 x 0.58 x 25.4 cm)
• Item Weight: 249 g
• ISBN-10: 8397323384
• ISBN-13: 978-8397323384
• Publication Date: 26 May 2026

By the end of this adventure, your child will not just solve math problems; they will think like a detective. This book is an outstanding gift for children who enjoy puzzles, escape rooms, detective stories, or advanced mathematical concepts.