题目
题型:解答题难度:一般来源:不详
(1)-5+6-7+8;
(2)
1 |
4 |
1 |
2 |
1 |
3 |
答案
=-12+14
=2;
(2)原式=
1 |
4 |
1 |
2 |
1 |
3 |
=
13 |
12 |
核心考点
举一反三
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
k-1 |
4 |
k-2 |
4 |
(符号[a]表示不超过实数a的最大整数,例如[2.6]=2,[0.2]=0),则x2010等于 ______.
A.-2℃ | B.19℃ | C.23℃ | D.-1℃ |
1 |
4 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
2 |
1 |
3 |
13 |
12 |
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
k-1 |
4 |
k-2 |
4 |
A.-2℃ | B.19℃ | C.23℃ | D.-1℃ |