APKPure에서 안전하고 빠른 APK 다운로드
APKPure는 바이러스 없는 Blitzrechner + APK 다운로드를 위해 서명 확인을 사용합니다.
기본 또한 알아보기
A simple app to help you learn addition of numbers up to 20 with exciting statistics and a heatmap. The result sum doesn't exceed 23.
A student is offered a correct answer as well as a choice of answers similar to the correct one, so attention is required.
In case of a mistake, the question is put for a repetition in 3 and 10 steps after current.
No ads.
No IAP.
Works offline.