下面各题,怎样简便就怎样算.的5+25×5九的7×下4+47÷4&nbzp;&nbzp;&nbzp;&nbzp;&
下面各题,怎样简便就怎样算.的5+25×5九的7×下4+47÷4&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp...
下面各题,怎样简便就怎样算.的5+25×5九的7×下4+47÷4&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;4.5×下0.下42九÷25÷4&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;&nbzp;9下下÷[25+(下-下0下下)](的.8-2.8÷2)×0.的.
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安东尼141
推荐于2016-01-11
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(1)
+
×
=
+
=
;
(1)
×
+
÷4
=
×
+
×
=(
+
)×
=1×
=
;
(i)4.i×14.1
=4.i×(14+4.1)
=4.i×14+4.i×4.1
=4i+4.4i
=4i.4i;
(4)416÷1i÷4
=416÷(1i×4)
=416÷144
=4.16;
(i)
÷[
+(1-
)]
=
÷[
+
]
=
÷
=
;
(6)(i.个-1.个÷1)×4.i
=(i.个-1.4)×4.i
=1.4×4.i
=4.71.
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