Pass the device around. A banner shows whose turn it is, in their color.

Tap 🔊 to hear it. Tap number keys to answer. Earn points and ⭐ for every one you get!

Big adds & subtracts are stacked up and down. Solve one column at a time, right to left — the game shows the carry and borrow for you.

Tap 💡 for help. Wrong answers just get a gentle "try again" — never a buzzer. Learning is fun here!