58x(100-2)的简便方法?

2024-12-02 02:52:18
推荐回答(3个)
回答1:

58×(100-2)
=58×100 - 58×2
=5800-116
=5684

回答2:

58x(100-2)

=58x100-58x2
=5800-116
=5800-110-6
=5790-6
=5784

回答3:

=58×100-58×2
=5800-(60-2)×2
=5800-60×2+2×2
=5800-120+4
=5800-100-20+4
=5680+4
=5684