题目内容
(1)3
-(-
)+2
+(-
)
(2)(-24)×(
-
+
)
(3)(-
)÷(-1
)×|-
|
(4)-22-(-3)3×(-1)4.
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
| 1 |
| 2 |
(2)(-24)×(
| 1 |
| 12 |
| 5 |
| 6 |
| 3 |
| 8 |
(3)(-
| 3 |
| 7 |
| 1 |
| 4 |
| 7 |
| 12 |
(4)-22-(-3)3×(-1)4.
(1)原式=(3
-
)+(
+2
)
=3+3
=6;
(2)原式=(-24)×
-(-24)×
+(-24)×
=-2+20-9
=9;
(3)原式=(-
)÷
×
=(-
)×
×
=-
×
=-
;
(4)原式=-4+27×1
=23.
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
=3+3
=6;
(2)原式=(-24)×
| 1 |
| 12 |
| 5 |
| 6 |
| 3 |
| 8 |
=-2+20-9
=9;
(3)原式=(-
| 3 |
| 7 |
| 5 |
| 4 |
| 7 |
| 12 |
=(-
| 3 |
| 7 |
| 4 |
| 5 |
| 7 |
| 12 |
=-
| 12 |
| 35 |
| 7 |
| 12 |
=-
| 1 |
| 5 |
(4)原式=-4+27×1
=23.
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