1.	5 + 4 = 9	8 + 9 = 17	4 + 4 = 8	4 + 1 = 5	3 + 9 = 12
2.	8 + 5 = 13	4 + 6 = 10	6 + 4 = 10	3 + 8 = 11	8 + 1 = 9
3.	7 + 1 = 8	4 + 1 = 5	2 + 4 = 6	7 + 6 = 13	6 + 5 = 11
4.	2 + 6 = 8	1 + 2 = 3	2 + 8 = 10	8 + 2 = 10	3 + 5 = 8
5.	1 + 5 = 6	6 + 6 = 12	8 + 7 = 15	7 + 3 = 10	1 + 3 = 4
6.	9 + 3 = 12	6 + 2 = 8	5 + 5 = 10	6 + 9 = 15	6 + 4 = 10
7.	2 + 5 = 7	0 + 2 = 2	1 + 4 = 5	2 + 8 = 10	6 + 3 = 9
8.	2 + 5 = 7	6 + 1 = 7	7 + 9 = 16	4 + 3 = 7	5 + 7 = 12
9.	5 + 2 = 7	3 + 7 = 10	8 + 7 = 15	8 + 6 = 14	4 + 7 = 11
10.	6 + 8 = 14	7 + 3 = 10	3 + 3 = 6	3 + 9 = 12	0 + 8 = 8
11.	9 + 2 = 11	1 + 3 = 4	2 + 6 = 8	4 + 9 = 13	9 + 9 = 18
12.	1 + 6 = 7	1 + 7 = 8	3 + 1 = 4	7 + 9 = 16	0 + 6 = 6
13.	6 + 7 = 13	7 + 5 = 12	3 + 4 = 7	9 + 8 = 17	7 + 1 = 8
14.	2 + 1 = 3	8 + 6 = 14	5 + 5 = 10	1 + 1 = 2	8 + 9 = 17
15.	1 + 5 = 6	7 + 5 = 12	1 + 8 = 9	2 + 3 = 5	2 + 0 = 2
16.	8 + 2 = 10	4 + 5 = 9	7 + 8 = 15	7 + 4 = 11	5 + 3 = 8
17.	6 + 3 = 9	1 + 1 = 2	2 + 2 = 4	8 + 1 = 9	9 + 8 = 17
18.	6 + 5 = 11	7 + 4 = 11	6 + 1 = 7	8 + 8 = 16	5 + 3 = 8
19.	3 + 2 = 5	8 + 3 = 11	8 + 8 = 16	7 + 2 = 9	2 + 1 = 3
20.	5 + 1 = 6	5 + 1 = 6	5 + 6 = 11	3 + 3 = 6	3 + 7 = 10

answers to this test: jakeholland.net:80/multest.php?vals=0-9&op=add&seed=1429656594&answer

random multiplication test: /multest.php?vals=0-9&op=mul
random division test: /multest.php?vals=0-9&op=div
random addition test: /multest.php?vals=0-9&op=add
random subtraction test: /multest.php?vals=0-9&op=sub