4.25÷2.5×101-1.7简便计算

2025-06-26 12:49:47
推荐回答(2个)
回答1:

4.25÷2.5×101-1.7
=1.7*101-1.7
=170+1.7-1.7
=170

回答2:

=1.7×(100+1)-1.7
=1.7×100+1.7-1.7
=170