98×27+54 =(100-2)27+54 =100×27-2×27+54 =2700-54+54 =2700
98×27+54=100×27-2×27+54=100×27=2700
98×27+54=98×27+2×27=27×(98+2)=27×100=2700
(100-2)*27+54=100*27-2*24+54=2700-54+54=2700
(100x27)-(2x27)+54=270-0=270