998﹣736÷32+25;
0.55×1.4+18.395÷6.5;
3.1.4+9.8×7.5﹣0.75÷2.5;
68÷(0.85×4.7+5.3×0.85);
(2÷0.25+0.25÷2)×1.2;
0.21÷[(17.4+3.6)×0.01]×2.5.
998﹣736÷32+25;
0.55×1.4+18.395÷6.5;
3.1.4+9.8×7.5﹣0.75÷2.5;
68÷(0.85×4.7+5.3×0.85);
(2÷0.25+0.25÷2)×1.2;
0.21÷[(17.4+3.6)×0.01]×2.5.