A times tables racing game: the faster you answer, the faster your car goes. For ages 5–12. Play it in full here in your browser.
Times Trial is one of the games for kids in Playtime613. No ads, no chat, nothing to sign up for. The Playtime613 app for Windows has every level of every game, a profile for each child, parent controls, offline play, and you can set it to lock on Shabbos and Yom Tov.