Abacus Practice

ClayFish Technologies

About this app

This app does one thing and does that best. It generates mathematical problems for kids to solve using mental calculation, Vedic math tricks or using an Abacus.

It generates problems based on three inputs—
1. Number of digits in the generated numbers
2. How many numbers are to be included in the calculation
3. Whether to use negative numbers as well

For example,
If you choose Addition problem, with numbers of 2 digits and total 3 numbers to be added, it may generate following problems—
1. 34 + 99 + 10 = ?
2. 77 + 19 + 45 = ?

Similarly, if you ask for a subtraction problem, with numbers of 3 digits and total 2 numbers, it may generate following problems—
1. 466 - 324 = ?
2. 451 - 875 = ?

We hope kids enjoy learning math tricks with this application.

Ratings and reviews

I really appreciate your efforts to create this app for me! Thank you so much for doing this!! I have a small feature request, can you let the users define how long the minimum time should be by inputting a double? Because the minimum time is not quick enough for me now and I would like to be able to change it myself.

What the minus of this sign } updated for?? No meaning Can across question with wrong answer in 3 digits. The abacus display beads too small, cant visual clearly . The digit sound very clear but cant sound on minus digit. Cant train on hearing method to student.

It's interesting but unfortunately it does not read aloud numbers greater than 4 digits. Waiting for an update. Thx anyway. It may be of help anyway.

What’s new

Removed all tracking and analytics