Lava Leap!
Add the ones first, then add back the tens.
♪
On
⏱ 30
Choose Your Speed!
⭐ Untimed
No timer
🐇 Fast
75 seconds
🚀 Turbo
60 seconds
▶ Start
🏆
You Made It Across!
🌋 Play Again
⏰
Time's Up!
🌋 Try Again
Add a Single-Digit Number with No Regrouping
Click text to hear it.