9 of 80 = 9 x 80 = 720 9% of 80 = 7.20 9% off 80 = 72.80
720 = 9 x 80
LCM of 10 & 16 is 80 so (7 x 8)/80 + (9 x 5)/80 = 56/80 + 45/80 = 101/80 = 1 and 21 over 80
8 x 10 = 80 80 - 8 = 72 = 8 x 9
9 * -8 - 8 = - 72 - 8 = - 80
To find this divide 720 by 9 = 720/9 = 80 and you will see that 80 x 9 is indeed 720
89 x 20 = 1780 89 x 5 = 445 80 x 20 = 1600 9 x 20 = 180 80 x 5 = 400 9 x 5 = 45
80 percent of 900 = 80/100 x 900/1 = 80/1 x 9/1 = 720/1 = 720
80 x 20 = 1600 80 x 5 = 400 20 x 9 = 180 5 x 9 = 45
80 x 1 = 80 80 x 2 = 160 80 x 3 = 240 80 x 4 = 320 80 x 5 = 400 80 x 6 = 480 80 x 7 = 560 80 x 8 = 640 80 x 9 = 720 80 x 10 = 800 80 x 11 = 880 80 x 12 = 960
89 x 20 = 1780 89 x 5 = 445 80 x 20 = 1600 9 x 20 = 180 80 x 5 = 400 9 x 5 = 45
12 x 5 = 60 16 x 5 = 80 9 x 3 = 27 60+80+27 = 167 Go Figure!