That's just like rounding to the nearest whole number. When rounding to a specific place, take a look at the digit immediately to the right of the target, in this case, the tenths place. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.
Rounding to the nearest hundredth is more accurate.
15.00
$26.00
13.13 equates to 13 and 18.64 equates to 19 dollars (After Rounding) 13 + 19 = 32 dollars
$22.50
$18.23 rounding to the nearest dollar results in $18
Rounding to the nearest hundredth is more accurate.
$6.87826087 rounded to the nearest dollar is $7.00
15.00
$26.00
The estimate is $22.50.
13.13 equates to 13 and 18.64 equates to 19 dollars (After Rounding) 13 + 19 = 32 dollars
$22.50
It is finding the average value (or cost) of a number of things and then rounding the answer to the nearest dollar.
Rounding does away with unnecessary detail and thereby makes calculations easier.
46.629999999999995