Complete each long subtraction problem. Use the TAB and the SHIFT+TAB keys, or the mouse to move through the worksheet, and the arrow keys to move left or right within a problem. You must move to a space before typing a number. All the selectable spaces require a number, but the worksheet won't let you type numbers except where they are needed. It is easiest to use the arrow keys within each problem, and then tab to the next problem when you are done. When you are done, press the 'Grade My Quiz' button. Your quiz grade will be shown on the top right of the page. Digits that turn red are incorrect; an empty red block indicates a place where a number was omitted but is required. You may correct the quiz and grade it again. For a new quiz, press the 'Give Me a New Quiz' button.

Teacher's note: This page randomly generates long subtraction problems; difficulty can be set from one to four digit numbers. The grade is the % of answer digits correct.

     Use the + and - buttons to set the number of digits in the top and bottom numbers. Press the "Press to Set" button to set a new quiz. To generate a mixed quiz press the "Surprise ME!" button.       Set Digits in Top Number: 2 ▼ ▲ Set Digits in Bottom Number: 2 ▼ ▲

Subtraction Quiz (10 to 99)