1.8 x 2 = 167 x 2 = 146 x 4 = 245 x 9 = 452 x 8 = 16
2.1 x 3 = 37 x 9 = 632 x 7 = 143 x 7 = 212 x 4 = 8
3.8 x 1 = 87 x 6 = 429 x 5 = 459 x 8 = 721 x 2 = 2
4.4 x 6 = 247 x 1 = 78 x 5 = 405 x 4 = 206 x 8 = 48
5.2 x 7 = 144 x 3 = 123 x 5 = 155 x 2 = 109 x 7 = 63
6.3 x 0 = 07 x 4 = 285 x 7 = 357 x 7 = 499 x 3 = 27
7.7 x 5 = 355 x 1 = 55 x 1 = 52 x 9 = 189 x 1 = 9
8.6 x 7 = 426 x 3 = 189 x 6 = 541 x 8 = 84 x 4 = 16
9.7 x 3 = 215 x 6 = 308 x 6 = 483 x 7 = 213 x 2 = 6
10.8 x 4 = 322 x 2 = 42 x 6 = 126 x 5 = 306 x 5 = 30
11.5 x 8 = 405 x 8 = 404 x 4 = 169 x 9 = 818 x 7 = 56
12.2 x 8 = 160 x 4 = 04 x 7 = 282 x 5 = 103 x 9 = 27
13.9 x 5 = 453 x 3 = 94 x 2 = 86 x 6 = 366 x 9 = 54
14.3 x 8 = 248 x 6 = 482 x 1 = 26 x 8 = 489 x 6 = 54
15.7 x 7 = 495 x 5 = 252 x 4 = 83 x 2 = 64 x 8 = 32
16.9 x 7 = 638 x 8 = 642 x 3 = 65 x 2 = 103 x 4 = 12
17.8 x 7 = 566 x 2 = 129 x 9 = 812 x 6 = 123 x 9 = 27
18.9 x 3 = 272 x 2 = 44 x 9 = 368 x 4 = 321 x 2 = 2
19.3 x 6 = 185 x 3 = 157 x 5 = 357 x 4 = 283 x 3 = 9
20.4 x 5 = 208 x 8 = 647 x 0 = 09 x 8 = 726 x 4 = 24

answers to this test: jakeholland.net/multest.php?vals=0-9&op=mul&seed=113518062&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