题目内容
计算,能简算的要简算
45×0.25+
| 6.62×45+3.38÷
| ||||||||||
[1.18-1.18×(1
| [10-(4
|
(1)45×0.25+
×17+25%×38,
=(45+17+38)×0.25,
=100×0.25,
=25;
(2)6.62×45+3.38÷
,
=6.62×45+3.38×45,
=(6.62+3.38)×45,
=10×45,
=450;
(3)[1.18-1.18×(1
-1.7)]÷(16-5
),
=[1.18-1.18×0.1]÷10
,
=[1.18-0.118]÷10
,
=1.062÷10
,
=
;
(4)[10-(4
+1
×2)]÷2
,
=[10-(4
+
)]÷2
,
=[10-
]÷2
,
=
÷2
,
=1.
| 1 |
| 4 |
=(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 |
| 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 |
| 3 |
| 4 |
| 1 |
| 6 |
=[10-(4
| 1 |
| 3 |
| 7 |
| 2 |
| 1 |
| 6 |
=[10-
| 47 |
| 6 |
| 1 |
| 6 |
=
| 13 |
| 6 |
| 1 |
| 6 |
=1.
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