Money Models for 10 digits, 10, 20, 50, 100


$1.
$2.
$3.
$4.
$5.
$6.
$7.
$8.
$9.
$10. =
$20. =
$20. = $20. × 1
$20. = 1($20.)
$20. ÷ $20. = 1
$20./1 = $20.
$20. = $10. × 2
$20. = 2($10.)
$20. ÷ $10. = 2
$20./2 = $10.
$20. = $5. × 4
$20. = 4($5.)
$20. ÷ $5. = 4
$20./4 = $5.
$20. = $2. × 10
$20. = 10($2.)
$10. = $2. × 5
$10. = 5($2.)
$10. ÷ $2. = 5
$10./5 = $2.
$10. = $1. × 10
$10. = 10($1.)
$10. ÷ $1. = 10
$10./10 = $1.
$10. = $10. × 1
$10. = 1($10.)
$10. ÷ $10. = 1
$10./1 = $10.
$10. = $5. × 2
$10. = 2($5.)
$10. ÷ $5. = 2
$10./2 = $5.
$20. ÷ $2. = 10
$20./10 = $2.
$20. = $1. × 20
$20. = 20($1.)
$20. ÷ $1. = 20
$20./20 = $1.
$50. =
$50. = $50. × 1
$50. = 1($50.)
$50. ÷ $50. = 1
$50./1 = $50.
$50. = $10. × 5
$50. = 5($10.)
$50. ÷ $10. = 5
$50./5 = $10.
$100. =
$100. = $100. × 1
$100. = 1($100.)
$100. ÷ $100. = 1
$100./1 = $100.
$100. = $50. × 2
$100. = 2($50.)
$100. ÷ $50. = 2
$100./2 = $50.
$100. = $20. × 5
$100. = 5($20.)
$100. ÷ $20. = 5
$100./5 = $20.
$100. = $10. × 10
$100. = 10($10.)
$100. ÷ $10. = 10
$100./10 = $10.


Cent means 100.
Century is 100 years.
2 centuries is 200 years and 3 centuries is 300 years.
Since 50 is half of 100, a half-century is 50 years.
Half of 100 = 1 of 2 sets of 50 years = 50 of 100 years = 50/100 = 1/2 century.
A penny is called a cent because 100 pennies make one whole dollar.
The symbol for cent is ¢.
100¢ = $1.00
100 cents = $1.00
The words cent and percent can be used interchangeably.
13 cents is 13 percent of a dollar.
13¢ = 13%
The symbol for percent is made from a slanted 1 and two small zeros -> 100 -> % ->
100 -> 1oo -> o1o -> %