Basic Rules
Since there are only 9 numbers and a zero we count in groups of 10.
• Ten Units make a TEN,
• Ten Tens make a HUNDRED .
• Ten Hundreds make a THOUSAND.
X X X ????????X?
Thousand Hundred Ten Units
The first seven place values are UNITS, TENS, HUNDREDS,
THOUSANDS,TEN-THOUSANDS,HUNDRED-THOUSANDS, and MILLIONS.
In any number the value of a digit depends upon its position
• The 4 in 41 stands for four Tens
• The two in 42 stands for two Units
• The value of the digit 5 in 452 is five Tens, because it is in the tens column.
The following Number can be written as
54321 = 54 X 1000 + 3 X 100 + 2 X 10 + 1 X 1
since
• The 54 in 54321 stands for 54 Thousands
• The 3 in 54321 stands for 3 Hundreds
• The 2 in 54321 stands for 2 Tens
• The 1 in 54321 stands for 1 Units
The number 54,321 says fifty four thousand, three hundred and twenty one ?
Comments