简便算法 3.5x2.7一35x0.73

2025-05-13 22:42:50
推荐回答(2个)
回答1:

3.5x2.7+35x0.73
=3.5x2.7+3.5x7.3
=3.5×(2.7+7.3)
=3.5×10
=35

回答2:

=3.5×(2.7+7.3)
=3.5×10
=35