99.99×77.78+33.33×66.66谁会用简便方法做?

2025-03-23 07:00:35
推荐回答(4个)
回答1:

33.33×(3×77.78+66.66)=99.99×(77.78+22.22)=99.99×100=9999

回答2:

(33.33×3)×77.78+33.33×(22.22×3)
=(33.33×3)×(77.78+22.22)
=99.99×100
=9999

回答3:

99.99×77.78+22.22=....

回答4:

99.99*77.78+33.33*66.66
=99.99*77.78+99.99*22.22
=99.99*(77.78+22.22)
=99.99*100
=9999