题目内容
(1)4÷
-
÷4
(2)1÷[(
-
)×24]
(3)6÷
+4÷
(4)
×
+
÷
(5)(
+
)÷
-11
(6)(19+
)×
.
解:(1)4÷
-
÷4
=4×
-
×
=5-
=
;
(2)1÷[(
-
)×24]
=1÷[
×24]
=1÷10
=
;
(3)6÷
+4÷
=6×
+4×
=9+12
=21;
(4)
×
+
÷
=
+
×
=
+
=
=
;
(5))(
+
)÷
-11
=
×36-11
=35-11
=24;
(6))(19+
)×
.
=19×
+
×
=
+
=
;
分析:利用四则混合运算的顺序解答即可.
点评:此题主要考查分数四则混合运算的计算能力和方法.
=4×
=5-
=
(2)1÷[(
=1÷[
=1÷10
=
(3)6÷
=6×
=9+12
=21;
(4)
=
=
=
=
(5))(
=
=35-11
=24;
(6))(19+
=19×
=
=
分析:利用四则混合运算的顺序解答即可.
点评:此题主要考查分数四则混合运算的计算能力和方法.
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