Question

Ken mails three packages at the post office that weigh 8.1, 8.5, and 8.9 pounds. The post office that Ken uses rounds the weight of a package to the nearest pound to determine the price of shipment. It costs $2 to mail a package that weighs 8 pounds and $2.75 for packages that weigh 9 pounds.

How much did Ken pay to ship each package?

Ken has $7.25 in his wallet in cash. Use subtraction to determine whether Ken has enough to mail the three packages and how much extra money he has or needs.

Answer 1

Ken paid $2 for the 8.1 pound package.
He paid $2.75 for the 8.5 and 8.9 pound packages.

$7.25 - $2 - $2.75 - $2.75 = -0.25

Ken needs $0.25 extra money to ship the packages.