题目内容

计算下列各题:
(1)3×(-2)-(-1)÷
1
3
×(-3)

(2)-7×(-
22
7
)
+26×(-
22
7
)
+2×
22
7

(3)-13-(1-0.5)×
1
3
×[2-(-3)2]

(4)(-2)2-(3-5)-
4
+2×(-3)
(1)原式=-6+1×3×(-3)
=-6-9
=-15;

(2)原式=-
22
7
×(-7+26-2)
=-
22
7
×(-21)
=-66;

(3)原式=-1-
1
2
×
1
3
×(2-9)
=-1+
7
6

=
1
6


(4)原式=4-(-2)-2-6
=-2.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网