题目内容
(1)-4.27+3.8-0.73+1.2
(2)(-
+
-
)×(-48)
(3)-
×[-32×(-
)2-2]
(4)
×(-
-
)
(2)(-
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
(3)-
| 3 |
| 4 |
| 2 |
| 3 |
(4)
| 2 |
| 3 |
2
|
| 3 | -3
| ||
(1)原式=(-4.27-0.73)+(3.8+1.2)
=-5+5
=0;
(2)原式=(-
)×(-48)+
×(-48)-
×(-48)
=8-36+4
=24;
(3)原式=-
×[-9×
-2]
=-
×[-4-2]
=-
×(-6)
=
;
(4)原式=
×(-
+
)
=0.
=-5+5
=0;
(2)原式=(-
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
=8-36+4
=24;
(3)原式=-
| 3 |
| 4 |
| 4 |
| 9 |
=-
| 3 |
| 4 |
=-
| 3 |
| 4 |
=
| 9 |
| 2 |
(4)原式=
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
=0.
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