To express a number, work from the largest values downward.The soroban in this game has place values up to the ten thousands.Much like Arabic numbers, the place values are shown from left to right.The Try a Challenge button begins the challenge.The eye button toggles the visibility of the other buttons.The randomize button generates a random number, which is expressed in the soroban.The reset button brings back the soroban’s values back to 0.
The check button checks the value of your input.The number box is on top of the screen.The right box shows the following options:.
Challenge yourself by moving the beads around to accurately represent numbers shown onscreen. Load a digital version of the Japanese abacus.
