how much do you know about maths? this is a quiz. how much do you know about maths? find out in this quiz. joeandgeorge published on November 28, 2012 Stacked 1/10 what must be added to 28 to make 100? 82 72 62 2/10 what is 12 x 9? 108 118 98 3/10 what is 9 x 8? 86 78 72 4/10 what is 7 x 7? 29 49 39 5/10 what is 1000 - 160? 820 850 840 6/10 what is 29 x 9? 612 216 621 261 126 162 7/10 how many degrees make a whole triangle? 180 270 90 360 8/10 i ate and i ate and i was sick on the floor 8 x 8 is? 64 62 66 9/10 what is 10 x 8? 85 80 79 77 10/10 how many degrees does a right angle have? 45 90 70