One answer might be
Barbara has 941 marbles. She gives her sister 235 marbles. She now has 706 marbles left.
941-235=706
Notice how all of the numbers are only used one time? Now you try it! See how many solutions you can find.

Student Instructions

Directions: Use the numbers 0 – 9, no more than one time each, to make the following problem true. Barbara has ___ ___ ___ marbles. She gives her sister ___ ___ ___ marbles. She now has ___ ___ ___ marbles left.