Free tables practice & testing
Build tables confidence through a combination of student directed practice, custom challenge setting and (coming soon) fluency check.
Access tables activitiesPersonalized math & spelling practice that students love.
Engage your students with adaptive learning and multi-player games. Aligned to all major curricula for ages 5 to 14, Sumdog is proven to accelerate growth.
Sign up free
Spelling with real voices
Engage your class with 24 games featuring read aloud and look-cover-spell questions, and set custom list challenges for homework.
Try spelling
Double mathematical fluency
A recent study found that using Sumdog Math for 30 minutes a week almost doubled student's fluency progress.
Read the Impact Report
Build fluency with Sumdog Tables
Reinforce learning with regular practice
Tables fluency is an essential step towards becoming a confident learner. Sumdog Tables provides a new way for learners to practice their multiplication tables whilst also having fun! In our mission to close the achievement gap, we have made Sumdog Tables free for everyone.
Start practicing
Boost literacy through spelling
Add variety to spelling practice with engaging games
Sumdog Spelling helps struggling learners improve their literacy proficiency by engaging them and inspiring them to practice with online gamified learning. A fast, easy way to provide personalized practice for each of your students, let Sumdog choose words for each child, or create your own custom word lists in a few clicks.
Engage your class in spellingBeth Stiles
One little fellow I have is so excited. He is getting to play the same games others are playing. However, he is being successful and having a much higher accuracy rate than he has seen all year with any assessment. I can not stress enough the motivation Sumdog provides – this is its strongest asset compared to other programs.
5th Grade Teacher, Mason-Dixon Elementary, WV
Allison Renner
I was able to differentiate through the skills-based challenges and assign different ones to students who struggle with prior skills that we have covered in class. This has allowed them a different avenue to continue their learning through practice and engagement. Students were able to build on these skills at school but also at home through a fun and safe site that parents can trust.