计算:12×45+15×28+30×26+60×11=______.
计算:3.6×42.3×3.75-12.5×0.423×28=______.
计算:38.3×7.6+11×9.25+427×0.24=______.
计算:121×0.13+12.1×0.9-12×1.21=______.
计算:153°19′42″+26°40′28″=______.
计算:1+3+5+7+9+11+13+15+17+19+21+23=______.
11+12+13+14+15=______×______.
计算:5002-499×501=______.
计算:1232-122×124=______.
计算:1001×1001-1001=______.
简便计算:101×99=______.
计算:888×999=______.
计算:lg2+lg5=______.