IGKAndroid Apps

This abacus "Soroban" can be used just likenormal abacus.You can change the size of the abacus.Log is saved as the value of each digit of the abacus, you cancheck where you make a mistake later viewing. Let me check theprocess of calculating the child look at the log.There are calculator, abacus display is displayed.Calculation results are stored as a log of the calculator, you cancheck it for later viewing.Be a smart and you can practice the abacus.By the addition of the abacus in daily from 1 to 100, we use toprevent blur.Sometimes, there may be effective in repelling the abacus by lefthand.

Soroban7 is the 7-digit Abacus.The abacus of about seven digits, I do exactly the size of thesmartphone.If you have seven digits, you can also afford by summingtheintegers from 1 to 1000, it is sufficient.

This is 5-digit abacus.