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题目
题型:填空题难度:一般来源:不详
(-1)(-2)-(-3)(-4)-(-5)(-6)-(-7)(-8)
(-1)(-2)-(-2)(-3)-(-3)(-4)-(-4)(-5)
=______.
答案
原式=
2-12-30-56
2-6-12-20
=
-96
-36
=
8
3
核心考点
试题【(-1)(-2)-(-3)(-4)-(-5)(-6)-(-7)(-8)(-1)(-2)-(-2)(-3)-(-3)(-4)-(-4)(-5)=______.】;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
计算:
(1+
7
1
)(1+
7
2
)(1+
7
3
)(1+
7
4
)(1+
7
5
)(1+
7
6
)
(1+
9
1
)(1+
9
2
)(1+
9
3
)(1+
9
4
)(1+
9
5
)
(1+
7
7
)(1+
7
8
)(1+
7
9
)
(1+
9
6
)(1+
9
7
)
=______.
题型:填空题难度:一般| 查看答案
计算:
①1-2+3-4+5-6+7-8+…+2007-2008;
(-1001)2009×0.1252008×(-
2
7
)
2009
×(-
4
13
)
2009
×(-
1
11
)
2009
题型:解答题难度:一般| 查看答案
算式1-(-1)2+
-1×(-1)3-2
2×(-1)+1
等于(  )
A.-2B.-1C.1D.2
题型:单选题难度:一般| 查看答案
请你来玩“24”点游戏,给出3、-5、-12、7四个数凑成24的算式______.
题型:填空题难度:一般| 查看答案
0.00067×0.338-(75×0.00000102÷0.00338×0.042)=(  )
A.0.00008B.0.0008C.0.000529D.0.0529
题型:单选题难度:简单| 查看答案
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