问题 填空题
(1)3+(-2)=______;  
(2)-2-(-2)=______;
(3)-2×5=______;      
(4)-6÷(-3)=______;
(5)1-(-1)2=______; 
(6)-33×
2
9
=______;
(7)-2+(-6)÷(-
5
4
)=______;
(8)x5+x5=______.
答案

(1)原式=3-2

=1;

(2)原式=-2+2

=0;

(3)原式=-10;

(4)原式=6÷3

=2;

(5)原式=-9×

2
9

=-2;

(6)原式=-2+6×

4
5

=-2+

24
5

=

12
5

(7)原式=2x5

故答案为1;0;-10;2;-2;

12
5
;2x5

单项选择题
单项选择题