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计算,能简算的要简算45×0.25+14×17+25%×386.62×45+3.38÷145[1.18-1.18×(145-1.7)]÷(16-51950)[10-(413+134×2)]÷216

题目详情
计算,能简算的要简算
45×0.25+
1
4
×17+25%×38
6.62×45+3.38÷
1
45
[1.18-1.18×(1
4
5
-1.7)]÷(16-5
19
50
[10-(4
1
3
+1
3
4
×2)]÷2
1
6
▼优质解答
答案和解析
(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.