问题 解答题
计算:
(1)-4
1
3
-5
1
2
+7
1
3

(2)8×(-1)2-(-4)+(-3)
(3)(-2)3÷|-32+1|-(-5
1
2
)×
4
11

(4)5(x-3y)-(-2y+x)
答案

(1)原式=(-4

1
3
+7
1
3
)-5
1
2

=3-5

1
2

=-2

1
2

(2)原式=8+4-3

=9;

(3)原式=-8÷8+

11
2
×
4
11

=-1+2

=1;

(4)原式=5x-15y+2y-x

=4x-13y.

单项选择题 A1/A2型题
选择题