7.6×0.46-0.58×5.7简便计算

2025-06-27 21:21:53
推荐回答(1个)
回答1:

=0.01*0.1*(76*46-58*57)
=0.001*(19*4*2*23-2*29*3*19)
=0.001*19*2*(4*23-3*29)
=0.001*19*2*(92-87)
=0.001*19*2*5
=0.001*19*10
=0.19