Question

You buy 4 pencils at $0.30 each. You receive $0.80 back in change. How much money did you give
the cashier?

Answer 1

Total cost of the pencils is the number of pencils x the price per pencil:

4 x 0.30 = $1.20

Now add what you got back for change:

1.20 + 0.80 = 2.00

You gave the cashier $2.00