Isn't it obvious it's 2
2 half dollars
Two half-dollars otherwise known as a fifty cent piece make a dollar.
A half-dollar is $0.50 ( fifty cents); three half-dollars is 3(.50) = $1.50 ( one dollar and fifty cents)
Fifty cents doesn't make one dollar. It is only half of a dollar. To get a dollar you need 4 quarters or 2 fifty cent pieces.
a whole dollar, or one.
Two and a half dollars.
ONE
one hundred dollars
one half of a dollar
One half of five dollars is two dollars and fifty cents. This is calculated by dividing five by two, which equals 2.5. Therefore, in dollar terms, it is $2.50.
There are 10 quarters in 2 and a half. Since one dollar is equal to four quarters, 2.5 dollars (or 2 and a half) equals 2.5 × 4 = 10 quarters.
There are 18 quarters in 4 and a half dollars. This is because there are 4 quarters in a dollar, so 4 dollars would have 4 x 4 = 16 quarters. Additionally, half a dollar is equivalent to 2 quarters, making a total of 16 + 2 = 18 quarters in 4 and a half dollars.