题目内容

9.43-(1.74+1.43)25×12.5×0.320.74×3.25+0.74×6.75
1026-1704÷71
6
7
÷(2-
3
5
9÷〔(2.75-1.25)×0.5〕
(1)9.43-(1.74+1.43)
=9.43-1.74-1.43
=9.43-1.43-1.74
=6.26;
(2)25×12.5×0.32
=25×12.5×0.4×0.8
=(25×0.4)×(12.5×0.8)
=10×10
=100;
(3)0.74×3.25+0.74×6.75
=0.74×(3.25+6.75)
=0.74×10
=7.4;
(4)1026-1704÷71
=1026-24
=1002;
(5)8÷
6
7
÷(2-
3
5

=8÷
6
7
÷
7
5

=8×
7
6
×
5
7

=6
2
3

(6)9÷〔(2.75-1.25)×0.5〕
=9÷〔1.5×0.5〕
=9÷0.75
=12.
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