( | General | Number Notation)

Hierarchy of Decimal Numbers

Number

Name

How many

0 zero  

1 one

2 two

3 three

4 four

5 five

6 six

7 seven

8 eight

9 nine

10 ten

20 twenty two tens

30 thirty three tens

40 forty four tens

50 fifty five tens

60 sixty six tens

70 seventy seven tens

80 eighty eight tens

90 ninety nine tens

Number Name How Many

100 one hundred ten tens

1,000 one thousand ten hundreds

10,000 ten thousand ten thousands

100,000 one hundred thousand one hundred thousands

1,000,000 one million one thousand thousands

Some people use a comma to mark every 3 digits. It just keeps track of the digits and makes the numbers easier to read.