1+2+5+87+90-78+7887+554332+677665+12 x 0 jawabnya = 1239991 bukan nol karena kita hrs perhatiin skala prioritasnya 1+2+5+87+90-78+7887+554332+677665+12 x 0= 1+2+5+87+90-78+7887+554332+677665+ 0 = 1+2+5+87+90-78+7887+554332+677665 = 1239991