题目内容

计算:
(1)-1-1÷32×
1
32
+2;
(2)(-3)×(-2)2-(-1)99÷
1
2

(3)(-10)2-5×(-3×2)2+23×10.
(1)-1-1÷32×
1
32
+2
=-1-1×
1
9
×
1
9
+2
=-1-
1
81
+2

=-
81+1-162
81

=
80
81

(2)(-3)×(-2)2-(-1)99÷
1
2

=(-3)×4-(-1)×2
=-12-(-2)
=-12+2
=-10;
(3)(-10)2-5×(-3×2)2+23×10
=100-5×(-6)2+8×10
=100-5×36+80
=100-180+80
=0.
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