题目内容
脱式计算.(友情提醒:有的可以简算哦)
4000-3456÷32×5 | 3.68-3.6×0.2+0.18 | 48×9.9+48×0.1 | ||||||||||
(1-
|
45×
|
2÷[
|
(1)4000-3456÷32×5,
=4000-108×5,
=4000-540,
=3460;
(2)3.68-3.6×0.2+0.18,
=3.68-0.72+0.18,
=2.96+0.18,
=3.14;
(3)48×9.9+48×0.1,
=48×(9.9+0.1),
=48×10,
=480;
(4)(1-
)÷0.25×4,
=
÷0.25×4,
=1×4,
=4;
(5)45×
+54×0.25+25%,
=(45+54+1)×0.25,
=100×0.25,
=25;
(6)2÷[
+(
-
)],
=2÷[
+
-
],
=2÷[
-
+
].
=2÷[
+
],
=2÷1,
=2.
=4000-108×5,
=4000-540,
=3460;
(2)3.68-3.6×0.2+0.18,
=3.68-0.72+0.18,
=2.96+0.18,
=3.14;
(3)48×9.9+48×0.1,
=48×(9.9+0.1),
=48×10,
=480;
(4)(1-
3 |
4 |
=
1 |
4 |
=1×4,
=4;
(5)45×
1 |
4 |
=(45+54+1)×0.25,
=100×0.25,
=25;
(6)2÷[
7 |
12 |
5 |
6 |
5 |
12 |
=2÷[
7 |
12 |
5 |
6 |
5 |
12 |
=2÷[
7 |
12 |
5 |
12 |
5 |
6 |
=2÷[
1 |
6 |
5 |
6 |
=2÷1,
=2.
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800-608÷32×5 | 3.68-3.6×0.2+0.18 | 48×9.9+48×0.1 | |||
(1-
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脱式计算.(友情提醒:有的可以简算)
800-608÷32×5 | 3.68-3.6×0.2+0.18 | 48×9.9+48×0.1 |
(1-)÷0.25×4 | (6-6×)÷12. |