题目
题型:解答题难度:一般来源:不详
(1)(-2)3+(-3)×[-22-(-1)]
(2)(-125
5 |
7 |
答案
=-8-3×(-3)
=-8+9
=1;
(2)原式=(-125-
5 |
7 |
1 |
5 |
=-125×
1 |
5 |
5 |
7 |
1 |
5 |
=-25-
1 |
7 |
=-25
1 |
7 |
核心考点
举一反三
(1)-6+4-2;
(2)-81÷
9 |
4 |
4 |
9 |
(3)(-36)×(-
4 |
9 |
5 |
6 |
7 |
12 |
(4)-14-
1 |
6 |
(1)2+(-4)-(-2)+4
(2)2÷(1-
1 |
3 |
2 |
3 |
(3)5-(-2)2×2
(4)(
3 |
4 |
1 |
6 |
1 |
12 |
1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
1 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
4 |
3 |
4 |
1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
8×9 |
1 |
9×10 |