题目
题型:解答题难度:一般来源:不详
1 |
2 |
答案
1 |
4 |
=-8+121×4
=-8+484
=476.
核心考点
举一反三
A.减小1% | B.不改变 | C.增大1% | D.增大9% |
(2)-7-15;
(3)12-(-18)+(-7)-15;
(4)3a2-2a+4a2-7a;
(5)(
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6 |
3 |
4 |
5 |
12 |
(6)-14-
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7 |
(7)6.868×(-5)+6.868×(-12)+17×6.868;
(8)-32-|(-5)3|×(-
2 |
5 |
(1)(
5 |
9 |
3 |
4 |
1 |
18 |
(2)(-1)3-[-1-
1 |
2 |
1 |
3 |