题目内容

(1)-4.27+3.8-0.73+1.2
(2)(-
1
6
+
3
4
-
1
12
)×(-48)
(3)-
3
4
×[-32×(-
2
3
)2
-2]
(4)
2
3
×(-
2
1
4
-
3-3
3
8
(1)原式=(-4.27-0.73)+(3.8+1.2)
=-5+5
=0;

(2)原式=(-
1
6
)×(-48)+
3
4
×(-48)-
1
12
×(-48)
=8-36+4
=24;

(3)原式=-
3
4
×[-9×
4
9
-2]
=-
3
4
×[-4-2]
=-
3
4
×(-6)
=
9
2


(4)原式=
2
3
×(-
3
2
+
3
2

=0.
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