题目
题型:解答题难度:一般来源:不详
(1)(-7)-9-(-3)+(-5);
(2)(-
1 |
3 |
2 |
5 |
3 |
5 |
2 |
3 |
(3)-24×(-
1 |
2 |
3 |
4 |
1 |
3 |
(4)(-2)÷
1 |
3 |
(5)-14+8÷(-2)2-(-4)×(-3);
(6)-19
8 |
9 |
答案
=-7-9+3-5
=-21+3
=-18;
(2)(-
1 |
3 |
2 |
5 |
3 |
5 |
2 |
3 |
=(-
1 |
3 |
2 |
3 |
2 |
5 |
3 |
5 |
=-2+1
=-1;
(3)-24×(-
1 |
2 |
3 |
4 |
1 |
3 |
=24×
1 |
2 |
3 |
4 |
1 |
3 |
=12-18+8
=2;
(4)(-2)÷
1 |
3 |
=-6×(-3)
=18;
(5)-14+8÷(-2)2-(-4)×(-3)
=-1+8÷4-12
=-1+2-12
=-11;
(6)-19
8 |
9 |
=(-20+
1 |
9 |
=-20×3+
1 |
9 |
=-60+
1 |
3 |
=-59
2 |
3 |
核心考点
试题【计算(1)(-7)-9-(-3)+(-5);(2)(-13)+(+25)+(+35)+(-123);(3)-24×(-12+34-13);(4)(-2)÷13×】;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