题目内容
计算
(1)
÷(-
)3-(1
-3
+1
)×24
(2)-8×(-2)4-(-
)2×(-2)4+
×(-3)2.
(1)
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 3 |
(2)-8×(-2)4-(-
| 1 |
| 2 |
| 4 |
| 9 |
(1)
÷(-
)3-(1
-3
+1
)×24
=
÷(-
)-1
×24+3
×24-1
×24
=-2-17+90-32
=39;
(2)-8×(-2)4-(-
)2×(-2)4+
×(-3)2
=-8×16-
×16+
×9
=-108-4+4
=-108.
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 3 |
=
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 3 |
=-2-17+90-32
=39;
(2)-8×(-2)4-(-
| 1 |
| 2 |
| 4 |
| 9 |
=-8×16-
| 1 |
| 4 |
| 4 |
| 9 |
=-108-4+4
=-108.
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