A Math Look by Dyscalculia.org

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 -> %