cdo2010
春芽
共回答了19个问题采纳率:94.7% 举报
(1)45×0.25+
1
4 ×17+25%×38,
=(45+17+38)×0.25,
=100×0.25,
=25;
(2)6.62×45+3.38÷
1
45 ,
=6.62×45+3.38×45,
=(6.62+3.38)×45,
=10×45,
=450;
(3)[1.18-1.18×(1
4
5 -1.7)]÷(16-5
19
50 ),
=[1.18-1.18×0.1]÷10
31
50 ,
=[1.18-0.118]÷10
31
50 ,
=1.062÷10
31
50 ,
=
1
10 ;
(4)[10-(4
1
3 +1
3
4 ×2)]÷2
1
6 ,
=[10-(4
1
3 +
7
2 )]÷2
1
6 ,
=[10-
47
6 ]÷2
1
6 ,
=
13
6 ÷2
1
6 ,
=1.
1年前
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