7.5×[63.9÷(7-2.5)]简便计算 26.19＋0.91÷(3.6-2.9)

快点！明天要交的。要简便，不要麻烦的.跪求，明天对了有悬赏分：20分

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如此简单的算源链歼式都不会你怎么对得起你雹冲的老师？对得起你的父母？动不唤誉动就下跪跟要饭的有何区别？你将来只能跪着要饭。丢人死了。

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7.5×[63.9÷(7-2.5)]
=7.5×(63.9÷4.5)
=7.5×14.2
=106.5

26.19＋0.91÷(3.6-2.9)
=26.19+0.91÷0.7
=26.19+1.3
=27.49

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7.5×[63.9÷(7-2.5)]
=7.5×(63.9÷4.5)
=7.5×14.2
=106.5

26.19＋0.91÷(3.6-2.9)
=26.19+0.91÷0.7
=26.19+1.3
=27.49
这个基让茄搏察个，简便你自己不会啊？？滑神

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7.5×[63.9÷(7-2.5)]
=7.5×(63.9÷4.5)
=7.5×14.2
=106.5

26.19＋0.91÷(3.6-2.9)
=26.19+0.91÷0.7
=26.19+1.3
=27.49

就是棚手这衫银样的链塌嫌吧

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