Ask your parents or teacher for help.

Type the answer to each 3 number addition and subtraction problem. Use the arrow keys or the mouse to move from problem to problem. Press the 'Grade My Quiz' button to have your quiz graded. A check mark means correct; an X means incorrect. The incorrect ones will have the correct answers shown.

Look at all the problems with an X and make sure you understand how to get the correct answer. Press the 'Give Me a New Quiz' button to make a new worksheet.
Add and Subtract 3 Numbers
11.  8 + 7 =      15

12.  12 - 6 =     6

13.  2 + 12 =      14

14.  8 - 4 =      4

15.  3 + 2 =      5

16.  9 - 1 =      8

17.  1 + 9 =      10

18.  4 - 3 =      1

19.  11 + 1 =      12

10.  7 - 2 =      5
11.  1 + 1 =      2

12.  12 - 10 =      2

13.  4 + 3 =      7

14.  10 - 5 =      5

15.  3 + 6 =      9

16.  5 - 2 =      3

17.  8 + 9 =      17

18.  7 - 5 =      2

19.  8 + 5 =      13

20.  11 - 5 =      6
            

Math Flash Cards Home