The decimal $0.01 show's that one penny is one hundredth of a dollar.
Three pennies in a decimal part of a dollar would be equivalent to 0.03 dollars. This is because there are 100 pennies in a dollar, so each penny is worth 0.01 dollars. Therefore, three pennies would be worth 0.03 dollars in decimal form.
One dime is 1/10, that is, 0.1, dollars.
0.1
Seven nickels is 35 cents. A dollar is 100 cents, so the nickels are 35/100, or 0.35 of a dollar.
It shows that the thing is bigger then what it is and they know that the decimal is rounded and they also know that it will have a decimal in it
0.01
A penny represents .01 in a decimal amount relating to a dollar.
$0.01
$0.01
.01
0.01
0.05
0.89
.25
1 penny is 1 /100 of one dollar or 1% of one dollar
.05
.10