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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