A customer pays 20 dollars for an item costing 13.65 dollars. Enter the amount of change in dollars.
الإجابة الصحيحة
6.35
الشرح
Aligning the decimal points gives 20.00 - 13.65 = 6.35 dollars in change. Subtracting only the visible digits without padding 20 to 20.00 would mix whole dollars with hundredths.