0.78×0.98的简便计算

2025-03-20 04:17:31
推荐回答(2个)
回答1:

=0.78*(1-0.02)
=0.78-0.0156
=0.7644

回答2:

0.78X0.01 =0.78X1÷100 0.78÷100 =0.0078