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计算下列各题(1)(5-6)-(7-9);(2)(-414)-(+513)-(-414)(3)22+(-4)+(-2)+4;(4)(-8)+(+0.25)-(-9)+(-14)(5)(-81)÷

题目详情
计算下列各题
(1)(5-6)-(7-9);            (2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
计算下列各题
(1)(5-6)-(7-9);            (2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
计算下列各题
(1)(5-6)-(7-9);            (2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
计算下列各题
(1)(5-6)-(7-9);            (2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
计算下列各题
(1)(5-6)-(7-9);            (2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

(-4
1
4
)-(+5
1
3
)-(-4
1
4
)
(3)22+(-4)+(-2)+4;         (4)(-8)+(+0.25)-(-9)+(-
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
1
4
1 4 1 1 4 4
1
3
1 3 1 1 3 3
1
4
1 4 1 1 4 4
1
4

(5)(-81)÷ 2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
1
4
1 4 1 1 4 4
2
1
4
;               (6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
1
4
1 4 1 1 4 4 (-3)×
5
6
×(-
4
5
)×(-
1
4
)
(7)(1-
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
5
6
5 6 5 5 6 6
4
5
4 5 4 4 5 5
1
4
1 4 1 1 4 4
1
6
+
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
1
6
1 6 1 1 6 6
3
4
)×(-48);        (8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2
3
4
3 4 3 3 4 4
1
2
÷
3
4
×(-0.2)×(-
5
2
1
2
1 2 1 1 2 2
3
4
×(-0.2)×(-
5
2
3
4
3 4 3 3 4 4
5
2
5
2
5 2 5 5 2 2
▼优质解答
答案和解析
(1)(5-6)-(7-9)
=[5+(-6)]-[7+(-9)]
=-1-(-2)
=-1+2
=1;

(2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(1)(5-6)-(7-9)
=[5+(-6)]-[7+(-9)]
=-1-(-2)
=-1+2
=1;

(2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(1)(5-6)-(7-9)
=[5+(-6)]-[7+(-9)]
=-1-(-2)
=-1+2
=1;

(2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(1)(5-6)-(7-9)
=[5+(-6)]-[7+(-9)]
=-1-(-2)
=-1+2
=1;

(2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(1)(5-6)-(7-9)
=[5+(-6)]-[7+(-9)]
=-1-(-2)
=-1+2
=1;

(2) (-4
1
4
)-(+5
1
3
)-(-4
1
4
)
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(-4
1
4
1 4 1 1 1 4 4 4 )-(+5
1
3
1 3 1 1 1 3 3 3 )-(-4
1
4
1 4 1 1 1 4 4 4 )
=(-4
1
4
)-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
4
1 4 1 1 1 4 4 4 )-5
1
3
+4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
3
1 3 1 1 1 3 3 3 +4
1
4

=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
4
1 4 1 1 1 4 4 4
=(-4
1
4
)+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
4
1 4 1 1 1 4 4 4 )+4
1
4
-5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
4
1 4 1 1 1 4 4 4 -5
1
3

=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
3
1 3 1 1 1 3 3 3
=-5
1
3


(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
3
1 3 1 1 1 3 3 3 ;

(3)22+(-4)+(-2)+4
=(22+4)+[(-4)+(-2)]
=26+(-6)
=20;

(4)(-8)+(+0.25)-(-9)+(-
1
4

=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
4
1 4 1 1 1 4 4 4 )
=(-8)+(+0.25)+9+(-0.25)
=(-8)+9+[(+0.25)+(-0.25)]
=1+0
=1;

(5)(-81)÷ 2
1
4

=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
2
1
4
1 4 1 1 1 4 4 4
=(-81) ÷
9
4

=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
÷
9
4
9 4 9 9 9 4 4 4
=(-81)×
4
9

=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
4
9
4 9 4 4 4 9 9 9
=-36;

(6) (-3)×
5
6
×(-
4
5
)×(-
1
4
)
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
(-3)×
5
6
5 6 5 5 5 6 6 6 ×(-
4
5
4 5 4 4 4 5 5 5 )×(-
1
4
1 4 1 1 1 4 4 4 )
=-3×
5
6
×
4
5
×
1
4

=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
5
6
5 6 5 5 5 6 6 6 ×
4
5
4 5 4 4 4 5 5 5 ×
1
4
1 4 1 1 1 4 4 4
=-
1
2


(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
2
1 2 1 1 1 2 2 2 ;

(7)(1-
1
6
+
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
6
1 6 1 1 1 6 6 6 +
3
4
)×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
3
4
3 4 3 3 3 4 4 4 )×(-48)
=1×(-48)-
1
6
×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
6
1 6 1 1 1 6 6 6 ×(-48)+
3
4
×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
3
4
3 4 3 3 3 4 4 4 ×(-48)
=-48+8-36
=-84+8
=-(84-8)
=-76;

(8)-1
1
2
÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
2
1 2 1 1 1 2 2 2 ÷
3
4
×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
3
4
3 4 3 3 3 4 4 4 ×(-0.2)×(-
5
2

=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
5
2
5 2 5 5 5 2 2 2 )
=-
3
2
×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
3
2
3 2 3 3 3 2 2 2 ×
4
3
×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
4
3
4 3 4 4 4 3 3 3 ×(-
1
5
)×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
1
5
1 5 1 1 1 5 5 5 )×(-
5
2

=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
5
2
5 2 5 5 5 2 2 2 )
=-
3
2
×
4
3
×
1
5
×
5
2

=-1.
3
2
3 2 3 3 3 2 2 2 ×
4
3
×
1
5
×
5
2

=-1.
4
3
4 3 4 4 4 3 3 3 ×
1
5
×
5
2

=-1.
1
5
1 5 1 1 1 5 5 5 ×
5
2

=-1.
5
2
5 2 5 5 5 2 2 2
=-1.