ID 254408642 © Viocontri2021 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
wood abacus accounting ancient antique arithmetic brown calculate calculation calculator child china chinese chinese classic colorful count culture economy education educational equipment finance frame genius hand kid learning math math symbols mathematical mathematics maths money number object old retro rod row school science student subtraction teach tool toy traditional vintage wooden