90 + 1 = 91
take A=1,P=1X=1 1+1+1=3 sin 90=1, a+p+x 90+90+90=270
90
300% + 500 - 90 + 1 = 414
90
90 plus 1 plus 2 plus 03 plus 004 is equal to 100.
1 100 + 50 + 90 + 45 _____ 285
91
(1 + 8)*(8 + 2) = 90
90
385
480
90 + 10% = 90 x (1 + (10/100)) = 90 x 1.1 = 99