Tony buys a CD that is priced at $13.59. He has a coupon for $1.85 off. He pays with a $20 bill. Which is the best whole number estimate of how much change he gets? $8 $8.26 $9 $9.26
I'd suggest rounding up both $13.59 and $1.85: $14 and $2. Subtracting the discount (~$2) from the price (~$14) results in $12. Subtracting this discounted price from the $20 cash in hand results in change of approx. $8.