Vertical abacus 2

Vertical Abacus 2 is a free Chrome extension designed as a vertical abacus to enhance your math learning experience. It helps users add, subtract, and grasp the concepts of units, tens, hundreds, thousands, and beyond, up to tens of thousands.

The extension replicates the traditional abacus functionality with rods that automatically carry over when accumulating 10 pieces, making it intuitive and effective for learning place values. It works offline without needing a data connection and features a convenient button to check calculation results, making math practice straightforward and accessible.