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计算:(6)434+(−3.85)−(−314)−(+3.15)(7)3-5-4÷(-12)(8)-4.5+0.5-3.2+5.1;(9)-4.5+325-513+135-12;(10)(-23)-(+13)-|-34|-(-14).

题目详情
计算:
(6)4
3
4
+(−3.85)−(−3
1
4
)−(+3.15)
(7)3-5-4÷(-12)
(8)-4.5+0.5-3.2+5.1;
(9)-4.5+3
2
5
-5
1
3
+1
3
5
-
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).

3
4
+(−3.85)−(−3
1
4
)−(+3.15)
(7)3-5-4÷(-12)
(8)-4.5+0.5-3.2+5.1;
(9)-4.5+3
2
5
-5
1
3
+1
3
5
-
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
3
4
3344
1
4
1144


2
5
-5
1
3
+1
3
5
-
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
2
5
2255
1
3
+1
3
5
-
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
1
3
1133
3
5
-
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
3
5
3355
1
2
; 
(10)(-
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
1
2
1122
2
3
)-(+
1
3
)-|-
3
4
|-(-
1
4
).
2
3
2233
1
3
)-|-
3
4
|-(-
1
4
).
1
3
1133
3
4
|-(-
1
4
).
3
4
3344
1
4
).
1
4
1144
▼优质解答
答案和解析
(6)原式=4
3
4
+3
1
4
+(-3.85-3.15)=8-7=1;
(7)原式=3-5+
1
3
=-1
2
3

(8)原式=-4+1.9=-2.1;
(9)原式=-4.5-0.5+3
2
5
+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
3
4
333444+3
1
4
+(-3.85-3.15)=8-7=1;
(7)原式=3-5+
1
3
=-1
2
3

(8)原式=-4+1.9=-2.1;
(9)原式=-4.5-0.5+3
2
5
+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
4
111444+(-3.85-3.15)=8-7=1;
(7)原式=3-5+
1
3
=-1
2
3

(8)原式=-4+1.9=-2.1;
(9)原式=-4.5-0.5+3
2
5
+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
3
111333=-1
2
3

(8)原式=-4+1.9=-2.1;
(9)原式=-4.5-0.5+3
2
5
+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
2
3
222333;
(8)原式=-4+1.9=-2.1;
(9)原式=-4.5-0.5+3
2
5
+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
2
5
222555+1
3
5
-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
3
5
333555-5
1
3
=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
3
111333=-5+5-5
1
3
=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
3
111333=-5
1
3

(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
3
111333;
(10)原式=-
2
3
-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
2
3
222333-
1
3
-
3
4
+
1
4
=-1-
1
2
=-1
1
2
1
3
111333-
3
4
+
1
4
=-1-
1
2
=-1
1
2
3
4
333444+
1
4
=-1-
1
2
=-1
1
2
1
4
111444=-1-
1
2
=-1
1
2
1
2
111222=-1
1
2
1
2
111222.