Global Sovereign University · Free for kids
Pick a game. Play by yourself, with a friend next to you, or with a friend on another phone. Send them a link and you are playing together in seconds. Free, no account, nothing to install.
24
Four numbers. Use all four with + − × ÷ to make exactly 24. Tap to play. Practice for medals, or duel a friend on the same 10 hands.
Ages 8 and up · 3 levels · 1 or 2 players
Play Make 24●
Checkers with a math twist: answer a math question to jump a piece or become a king. Play the computer or a friend anywhere.
Grades 2 to 5 math · 3 computer levels · 1 or 2 players
Play checkers4
Run a store, plan a festival, keep a bank ledger, drive a delivery route and open a lemonade stand. Fifty hands-on workshops that make new numbers every time.
Grade 4 · 10 lessons
Start lesson 1Accreditation notice: Global Sovereign University is not an accredited institution and does not grant degrees, academic credit, licenses, or industry credentials. Learners who pass GSU's online exams earn GSU certificates of comprehension.