History of math: Sumerian multiplication table (2700 BC) Cuneiform multiplication table Once people in West Asia figured out how to write down numbers, about 3500 BC, they quickly began to want to use cuneiform to [...]
Roman tax collector calculating someone's taxes on an abacus (Metz, ca. 225 AD) Did you figure it out? Poor Claudia died when she was 25 years old, seven months, and [...]
Math was a very exciting subject to be working on during the Middle Ages in Europe. Little by little, math experts in Europe were learning from Islamic math experts about what we call Arabic numbers (0,1,2,3,4,5,6,7,8,9) (though the [...]
A number line is infinite in both directions. Adding numbers is like walking along a path, the number line. To add two small numbers, like 7 + 4, you can just [...]
Chinese abacus project, made by kids at Laurelhurst School, Portland, Oregon Who invented the abacus? People in China started to use an abacus to help them with math problems maybe [...]
Chinese numbers: number rods Chinese numbers People in China were using written numbers by about 1500 BC, in the Shang Dynasty. This is about two thousand years later than people began [...]
