Join the waitlistScreen-free · Ages 5–9
Math facts that finally stick — in 15 minutes a day.
No apps. No tears. No prep for you. Just Reti the Yeti, a pencil, and a workbook your kid actually asks to do.
Join the waitlist and get 5 free practice pages instantly.
Build a strong foundation for math success — one fact at a time.
Math facts are being left out of many classrooms today. Without that fluency, kids lose confidence fast. Reti helps you close the gap in 10 minutes a night.
Closes the facts gap
Short, focused practice teaches the facts schools often skip — so nothing gets missed.
Builds real confidence
Fluency turns math from a struggle into something kids feel proud of.
No screens, no stress
Paper-and-pencil practice that sticks, without another login or glowing device.
Parents are already seeing the difference
Real feedback from busy moms testing the workbook with their kids.
“My daughter actually asked to do math after dinner. That has never happened before. The pages are short, so she feels proud instead of overwhelmed.”
Jessica T.
Mom of a 1st grader
“My son loves following Reti through Sumtopia — the story pulls him in, and the math just happens along the way. He asks to do the next page because he wants to see what happens next.”
Megan L.
Mom of a 2nd grader
“Within two weeks, she stopped counting on her fingers. I love that it teaches the facts directly without being another app on a tablet.”
Rachel K.
Mom of a kindergartener
A new kind of math workbook
- A story kids follow — save Sumtopia with Reti
- Addition & subtraction through 10, taught systematically
- Short, winnable pages that end on a high note
- Built by a teacher, tested on real elementary kids
"Fluency with math facts is one of the greatest determining factors of confidence in math."
Sabrina Soper, teacher & founder of Supernova Kids
Are you Reti?
Be first to get the workbook — plus 5 free practice pages you can use tonight.