Math people
actually enjoy.
Math mysteries for kids, workbooks that teach before they test, and brain training for grown-ups who miss a good puzzle.
- Math mysteries
- Kids' workbooks
- Color by Math
- Adult brain training
Pick your door
Pick a series — five for kids, one for grown-ups.
Who Did This?!
One funny disaster, a thousand suspects, math clues that catch the prankster.
See the cases →The Math Detective Agency
Story-driven secret missions — codes, patterns and hidden math.
Enter the Agency →Math Search Mysteries
100 short code-breaking cases. Solve the math, crack the case.
See the book →Color by Math
Solve, color, reveal the picture — math practice that feels like play.
See the books →Workbooks by Grade
Teach the idea first, then practice it — confidence over page-filling.
Browse workbooks →Basic Math Workbook for Adults
Brain training with real satisfaction — daily warm-ups to hard puzzles.
Browse adult books →The math that saves Christmas
Santa is missing and an impostor is signing his orders. Twenty-four advent missions, one clue a day, and a Christmas Eve final case your child solves on their own.
What readers say
"This was a fantastic work book that my math loving boy (9) worked through over the course of several days. He loved it so much because of the way the book is laid out and the mysteries were engaging and fun. It's packed with information that would be interesting to math lovers and non-math lovers alike. He absolutely loved this. I highly recommend it and hope that they make more."K Hammill Verified Amazon review
"Loved this book, finished the whole thing and would work on it in the morning at my desk at work. Just feels good to keep the mind moving. The math is very basic but more than I ever do normally! Going to buy the next book up from this just to keep it going."Karen Tuczynski Verified Amazon review
"Perfect workbook to review basic arithmetic from addition to division. Lots and lots of practice problems. One small thing that is important is that the problems are nicely spaced so there's plenty of room to work out your answers."s. Raynard Verified Amazon review
Start with 3 free missions
See how Math I Like It books work before you buy. Three bonus missions from The Math Detective Agency, printable in minutes.
Send me the missions