Abacus

The Abacus

Students in china use it to do multiplication, division, addition, subtraction, and to find the square roots of numbers really fast.

The abacus can be reset by a quick jerk to reset it back to zero. An abacus can also be called a suanpan.

In ancient Chinese times, it used to be a calculator.

For blind students, they would use an abacus to do math.

Who

a lot of people other than the chinese used the abacus; such as the romans, japanese, greek, persian, korean, and native american. What

An abacus has 9 sticks with 7 beads on each

. When The earliest known written documentation of the Chinese abacus dates back to the 2nd century BC.

Where The making of abacuss' began in mesapotamia.

Why The Chinese made it to help students do math.

How