题目内容

[
4
7
×(
3
5
-0.25)+
3
10
1
2

3.5×0.782÷(2.2-1.97)
(0.25+0.7)÷0.25×250%
1001-9036÷18.
(1)[
4
7
×(
3
5
-0.25)+
3
10
1
2

=[
4
7
×
7
20
+
3
10
1
2

=[
2
10
+
3
10
1
2

=
1
2
÷
1
2

=1;

(2)3.5×0.782÷(2.2-1.97),
=3.5×0.782÷0.23,
=2.737÷0.23,
=11.9;

(3)(0.25+0.7)÷0.25×250%,
=0.95÷0.25×250%,
=3.8×2.5,
=9.5;

(4)1001-9036÷18,
=1001-502,
=499.
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