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(2011•通辽)计算,能简算的要简算.(1)36÷1.5−12×0.4(2)(4−135)÷(456÷380)(3)4×0.8×25×0.125(4)121×10111(5)1479−(325−313)×123(6)27.5×16+13×27.5+27.5×12.

题目详情
(2011•通辽)计算,能简算的要简算.
(1)36÷1.5−
1
2
×0.4
(2)(4−1
3
5
)÷(456÷380)
(3)4×0.8×25×0.125
(4)121×10
1
11

(5)14
7
9
−(3
2
5
−3
1
3
)×1
2
3

(6)27.5×
1
6
+
1
3
×27.5+27.5×
1
2
▼优质解答
答案和解析
(1)36÷1.5−
1
2
×0.4,
=24-0.2,
=23.8;

(2)(4−1
3
5
)÷(456÷380),
=2
2
5
÷1.2,
=2.4÷1.2,
=2;

(3)4×0.8×25×0.125,
=(4×25)×(0.8×0.125),
=100×0.1,
=10;

(4)121×10
1
11

=121×(10+
1
11
),
=121×10+121×
1
11

=1210+11,
=1221;

(5)14
7
9
−(3
2
5
−3
1
3
)×1
2
3

=14
7
9
-(
17
5
×
5
3
-
10
3
×
5
3
),
=14
7
9
-(
17
3
-
50
9
),
=14
7
9
-
1
9

=14
2
3


(6)27.5×
1
6
+
1
3
×27.5+27.5×
1
2

=27.5×(
1
6
+
1
2
+
1
3
),
=27.5×1,
=27.5.