计算:0.5×12.5×2.5×128=______.
计算:0.5×12.5×2.5×128=______.
计算:3.6×42.3×3.75-12.5×0.423×28=______.
计算:75×4.67+17.9×2.5=______.
计算:0.125×0.25×0.5×64=______.
计算:223×7.5+22.3×12.5+230÷4-0.7×2.5+1=______.
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=______.
计算:1.996+19.97+199.8=______.