题目
题型:解答题难度:一般来源:不详
(1)(-4)-(+8)-(-5)+(-9);
(2)(-5)×(-7)-5×(-6)
(3)(-9)÷
3 |
2 |
2 |
3 |
(4)(1-
1 |
2 |
1 |
3 |
(5)3+50÷(-2)2×(-
1 |
5 |
答案
=-12+5-9
=-7-9
=-16;
(2)原式=35+30
=65;
(3)原式=(-9)×
2 |
3 |
2 |
3 |
1 |
4 |
=(-6)×
2 |
3 |
1 |
4 |
=(-4)×(-
1 |
4 |
=1;
(4)原式=1×(-12)-
1 |
2 |
1 |
3 |
=-12+6+4
=-2;
(5)原式=3+50÷4×(-
1 |
5 |
=3+50×
1 |
4 |
1 |
5 |
=3+
25 |
2 |
1 |
5 |
=3-
5 |
2 |
=-
1 |
2 |
核心考点
试题【计算(1)(-4)-(+8)-(-5)+(-9);(2)(-5)×(-7)-5×(-6)(3)(-9)÷32×23÷(-4)(4)(1-12-13)×(-12)】;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)9+(-1.4)-(+6)-(-1
2 |
5 |
(2)(-12)×(
3 |
4 |
5 |
6 |
(3)(-
1 |
2 |
1 |
4 |
3 |
4 |
(4)5+36÷(-3)2×(-
1 |
2 |