1.57x20 15.7x8简便计算

2025-01-01 04:52:31
推荐回答(3个)
回答1:

1.57x20 +15.7x8
=1.57x20+1.57x80
=1.57x(20+80)
=1.57x100
=157

回答2:


157

回答3:

=1.57×(20+80)
=1.57×100
=157