Question

Margo has 3 dimes.Justin. has 5 dimes

Answer 1

If Margo has 3 dimes it equals, .30. Which in other words is Thirty-Cents.
If Justin has 5 dimes it equals, .50. Which in other words is Fifty-Cents.
If you take both of their dimes and add them together, You will get .80. Which is Eighty-Cents.
.30 + .50 = .80