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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−
×0.4
(2)(4−1
)÷(456÷380)
(3)4×0.8×25×0.125
(4)121×10
(5)14
−(3
−3
)×1
(6)27.5×
+
×27.5+27.5×
.
(1)36÷1.5−
1 |
2 |
(2)(4−1
3 |
5 |
(3)4×0.8×25×0.125
(4)121×10
1 |
11 |
(5)14
7 |
9 |
2 |
5 |
1 |
3 |
2 |
3 |
(6)27.5×
1 |
6 |
1 |
3 |
1 |
2 |
▼优质解答
答案和解析
(1)36÷1.5−
×0.4,
=24-0.2,
=23.8;
(2)(4−1
)÷(456÷380),
=2
÷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
,
=121×(10+
),
=121×10+121×
,
=1210+11,
=1221;
(5)14
−(3
−3
)×1
,
=14
-(
×
-
×
),
=14
-(
-
),
=14
-
,
=14
;
(6)27.5×
+
×27.5+27.5×
,
=27.5×(
+
+
),
=27.5×1,
=27.5.
1 |
2 |
=24-0.2,
=23.8;
(2)(4−1
3 |
5 |
=2
2 |
5 |
=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 |
2 |
5 |
1 |
3 |
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 |
1 |
2 |
=27.5×(
1 |
6 |
1 |
2 |
1 |
3 |
=27.5×1,
=27.5.
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