题目
题型:解答题难度:一般来源:不详
(1)(-12)-5+(-14)-(-39)
(2)-32÷(-3)2+3×(-2)+|-4|
(3)[(-
1 |
6 |
5 |
12 |
2 |
15 |
(4)-
4 |
5 |
1 |
2 |
答案
=-12-5-14+39
=-31+39
=8;
(2)-32÷(-3)2+3×(-2)+|-4|
=-9÷9-6+4
=-1-6+4
=-3;
(3)[(-
1 |
6 |
5 |
12 |
2 |
15 |
=
1 |
6 |
5 |
12 |
2 |
15 |
=10-25-8
=-23;
(4)-
4 |
5 |
1 |
2 |
=-
4 |
5 |
1 |
2 |
1 |
4 |
=-
4 |
5 |
=-
4 |
5 |
=24.
核心考点
试题【计算:(1)(-12)-5+(-14)-(-39)(2)-32÷(-3)2+3×(-2)+|-4|(3)[(-16)-(-512)+215]×(-60)(4)-】;主要考察你对有理数的混合运算等知识点的理解。[详细]
举一反三
(1)
2 |
5 |
2 |
5 |
8 |
21 |
7 |
4 |
7 |
2 |
7 |
2 |
(2)-32-[22÷(-1)-13]×(-2)÷(-1)2008
(3)x2+3x2+x2-3x2
(4)5(a2b-2ab2+c)-4(2c+3a2b-ab2)
(5)化简求值:x2+4x-(2x2-x+x2)-(3x-1),其中x=-3.