MATH! are you good at math? if so try this quiz! And see how good you are. Please do not use a calculator. morgan5021 published on July 04, 2016 Stacked 1/8 what is the answer to 18x15? 270 503 152 2/8 here's a easy one, 20/2? (it means divide) 5 10 15 3/8 286 + 634 548 384 920 4/8 6389 - 483 5385 5906 5284 5/8 witch one is SMALLER? 638 or 729 > < = 6/8 witch one is BIGGEST? 6385 or 5238 > < = 7/8 836 x 627 739292 563773 524172 8/8 72356 - 6283 56397 98405 66073