-÷+=________
(-×)÷=________
×++=________
÷〔(-)×〕=________
6×(+)-=________
2-÷-=________
-(÷+)=________
〔2-(+)〕÷=________
1-(÷+)=________
÷+÷-=________
(1-÷)×=________
(-×)÷=________
〔-(-)〕÷=________
×〔1÷(+)〕=________
(×+)÷=________
÷5+÷+0.2=________
÷〔(-)÷〕=________
〔4-(-)〕÷=________
÷〔×(+)〕=________
3-×-=________
÷〔(-)×〕=________.
1
29
分析:根據(jù)題意,根據(jù)分?jǐn)?shù)四則混合運算的計算即可.
解答:
-
÷
+
=
-
+
=
-
+
=
=
;
(
-
×
)÷
=(
)×
=
-
=5-
=
;
×
+
+
=
+
+
=
+
+
=1+
=
;
÷[(
-
)×
]
=
÷[(
-
)×
]
=
÷[
×
]
=
÷
=
=
=
;
6×(
+
)-
=
+
-
=
+
=
=
=
;
2-
÷
-
=2-
=2-
=2-(
)
=2-1
=1;
-(
÷
+
)
=
-(
+
)
=
-(
)
=
=1-
=
;
[2-(
+
)]÷
=[2-(
)]÷
=[
-
]÷
=
=
=
;
1-(
÷
+
)
=1-(
×
+
)
=1-(
)
=1-
=1-
=
;
÷
+
÷
-
=
×
+
×
-
=
×(
+
-1)
=
×1
=
;
(1-
÷
)×
=(1-
×
)×
=(1-
)×
=
×
=
;
(
-
×
)÷
=
×(1-
)×
=
×
×
=
;
[
-(
-
)]÷
=[
-(
-
)]÷
=[
-
+
]÷
=
×
=
=
;
×[1÷(
+
)]
=
×[1÷(
+
)]
=
×[1÷
]
=
×1×
=
;
(
×
+
)÷
=(
×
+
)÷
=(
)×
=2×
=
=
;
÷5+
÷
+0.2
=
×
+
×
+
=
(
)
=
=
;
÷[(
-
)÷
]
=
÷[(
)×
]
=
÷
=
=
=
;
[4-(
-
)]÷
=[4-(
-
)]÷
=[4-
]÷
=[4-
]×8
=4×8-
=32-3
=29;
÷[
×(
+
)]
=
÷[
×(
+
)]
=
÷[
×
]
=
÷
=
=
=
;
3-
×
-
=3-
-
=3-(
+
)
=3-1
=2;
÷[(
-
)×
]
=
÷[(
-
)×
]
=
÷[
×
]
=
÷
=
×14
=1
.
點評:根據(jù)分?jǐn)?shù)的四則混合運算法則計算,能簡便計算的要簡便計算.
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