History of numbers

When people started to trade with each other, they needed a way to (a)   amounts of things, weight and money.

People in early civilizations also needed a way to record the passing of ________.

Egyptians used ________ pictures to represent 1,10,100,1000, and so on.

________were repeated to make other numbers.

The early __________and _______people used a numeral system based on groups of 60.

In the chinese language, words were not made from _____. Each word was a seperate _______.

Romans used letters , called ___________

The number system we use is called the ____________

(a)   have become a very important part of life.

Numbers helped people in _________, Science and technology.