0.99/4.12简便运算0.99乘4.12简便运算``
问题描述:
0.99/4.12简便运算
0.99乘4.12简便运算``
答
=(1-0.01)*4.12
=4.12*1-4.12*0.01
答
0.99乘4.12
1×4.12-0.0412
=4.12-0.0412
=4.11588