補数チャレンジ！ vs. Soroban66 Utilizzo e statistiche

○Soroban ・Free practice Multiplication : 7 digits x 7 digits Division : ÷ 7 digits = 7 digits Sums : 1-digit to 10-digit 10-unit You can challenge yourself with problems. ・Remix 5 Creation of your own personalized routines according to your level It only takes a minute or two, so you can do it quickly and easily in your spare time! ○Dictation Dictation of Sums. It reads off numbers, so you sum up all. ・Free You can practice 1 to 15 digits numbers. ○Flash Anzan Flash Anzan is a competition to add up the numbers displayed as they appear. ・Free practice Practice in 0.01 second increments. Difficulty adjustment based on fingering frequency. Percentage of time to light a problem can also be adjusted! Retry function is also available! ・Remix 5 Creation of your own personalized routines according to your level It only takes a minute or two, so you can do it quickly and easily in your spare time! ○Timer Reads out "Yo-i Hajime" before measurement. Any words can be read out during measurement.