Here is a simple word story problem involving the subtraction of decimal values.
Jane went to the store and bought some stuff. She had to pay $4.55 for all the stuff. She paid with a ten dollar bill. How much change did she get back? To solve this problem you just subtract: 10.00 - 4.55 --------- 5.45
Norma went to the store and bought some candy for $2.37 and a drink for $1.56. Norma paid for this stuff with a five dollar bill. How much did she get back in change? STEP ONE: Figure out how much the candy and drink cost. $2.37 + $1.56 --------- $3.93 STEP TWO: Figure out how much change she got back. $5.00 - $3.93 ---------- $1.07
Now you get to try a few for yourself.