问题描述:
50.4×1.9-1.8的简便运算。
最佳答案:
方法一:
50.4×1.9-1.8
=50.4x(2-0.1)-1.8
=50.4×2-5.04-1.8
=100.8-1.8-5.04
=99-5.04
=93.96
方法二:
50.4*1.9-1.8
=50x1.9+0.4x1.9-1.8
=95+0.76-1.8
=95-1.04
=93.96
50.4×1.9-1.8的简便运算。
问题描述:
50.4×1.9-1.8的简便运算。
方法一:
50.4×1.9-1.8
=50.4x(2-0.1)-1.8
=50.4×2-5.04-1.8
=100.8-1.8-5.04
=99-5.04
=93.96
方法二:
50.4*1.9-1.8
=50x1.9+0.4x1.9-1.8
=95+0.76-1.8
=95-1.04
=93.96