选择合适的方法，计算下面各题．18.7-4.375-6.625920÷40+23×50．99
选择合适的方法，计算下面各题．18.7-4.375-6.625920÷40+23×50．99.99×22.22+33.33×33.34415÷[（57-314）÷34]．...
选择合适的方法，计算下面各题．18.7-4.375-6.625920÷40+23×50．99.99×22.22+33.33×33.34415÷[（57-314）÷34]．
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①18.7-4.375-6.625
=18.74-（4.375+6.625）
=18.74-11
=7.74
②920÷40+23×50
=23+1150
=1173
③99.99×22.22+33.33×33.34
=33.33×（3×22.22）+33.33×33.34
=33.33×66.66+33.33×33.34
=33.33×（66.66+33.34）
=33.33×100
=3333
④
÷[（
-
）÷
]
=
÷[
×
]
=
×
=
=18.74-（4.375+6.625）
=18.74-11
=7.74
②920÷40+23×50
=23+1150
=1173
③99.99×22.22+33.33×33.34
=33.33×（3×22.22）+33.33×33.34
=33.33×66.66+33.33×33.34
=33.33×（66.66+33.34）
=33.33×100
=3333
④
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