计算:223×7.5+22.3×12.5+230÷4-0.7×2.5+1=______.
计算:223×7.5+22.3×12.5+230÷4-0.7×2.5+1=______.
计算:(1)12.5×111-1.5×25=______.(2)49.2492492÷1.23123123=______
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:9999×4444÷6666=______.
计算:0.15÷2.1×56=______.
利用因式分解计算:0.3332×4-1.2222×9=______.
计算:(-4x-3y)2=______.
计算:(x+5)(x-1)=______.
在计算890÷(189-25×4)时,应先算______再算______最后算______.
计算:201×73÷37+201×891÷111+1=______.