So I am totally devasted that my abacus broke while I was trying to figure out many Zac Efron tshirts I could afford and pay my taxes. I popped online and was looking for a new one and I found something even better.
The Canmer Abacus, its an abacus for the blind? Im not really sure how it works, it uses vibrations and fabric. Its supposed to allow the blind to do math just as fast as a vision abled person.
Kudos, I still use my fingers and toes. And PS your abacus may make you smarter but mine is much more colorful.
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