题目内容
| 计算. 208-900÷45 |
25.6-8.44-1.56 | 0.8×40×25×1.25 | |||||||||||
[1-(
|
(
|
(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 |
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| 3 |
=[1-
| 1 |
| 4 |
| 2 |
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=
| 3 |
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| 2 |
| 3 |
=
| 1 |
| 2 |
(5)(
| 11 |
| 15 |
| 9 |
| 5 |
| 7 |
| 15 |
=(
| 11 |
| 15 |
| 9 |
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| 7 |
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=
| 2 |
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| 7 |
| 15 |
=
| 2 |
| 7 |
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计算.
| 208-900÷45 | 25.6-8.44-1.56 | 0.8×40×25×1.25 |
| [1-( | ( |