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计算.208-900÷4525.6-8.44-1.560.8×40×25×1.25[1-(12-14)]×23(1115-95÷3)÷715.
题目详情
计算. 208-900÷45 | 25.6-8.44-1.56 | 0.8×40×25×1.25 | |||||||||||
[1-(
| (
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▼优质解答
答案和解析
(1)208-900÷45,
=208-20,
=188;
(2)25.6-8.44-1.56,
=25.6-(8.44+1.56),
=25.6-10,
=15.6;
(3)0.8×40×25×1.25,
=(0.8×1.25)×(40×25),
=1×1000,
=1000;
(4)[1-(
-
)]×
,
=[1-
]×
,
=
×
,
=
;
(5)(
-
÷3)÷
,
=(
-
)÷
,
=
÷
,
=
.
=208-20,
=188;
(2)25.6-8.44-1.56,
=25.6-(8.44+1.56),
=25.6-10,
=15.6;
(3)0.8×40×25×1.25,
=(0.8×1.25)×(40×25),
=1×1000,
=1000;
(4)[1-(
1 |
2 |
1 |
4 |
2 |
3 |
=[1-
1 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
=
1 |
2 |
(5)(
11 |
15 |
9 |
5 |
7 |
15 |
=(
11 |
15 |
9 |
15 |
7 |
15 |
=
2 |
15 |
7 |
15 |
=
2 |
7 |
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