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脱式计算.(友情提醒:有的可以简算)800-608÷32×53.68-3.6×0.2+0.1848×9.9+48×0.1(1-34)÷0.25×4(6-6×23)÷12.
题目详情
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-
| (6-6×
|
▼优质解答
答案和解析
(1)800-608÷32×5,
=800-19×5,
=800-95,
=705;
(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÷0.25×4,
=1×4,
=4;
(5)(6-6×
)÷12,
=(6-4)÷12,
=2÷12,
=
.
=800-19×5,
=800-95,
=705;
(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 |
=0.25÷0.25×4,
=1×4,
=4;
(5)(6-6×
2 |
3 |
=(6-4)÷12,
=2÷12,
=
1 |
6 |
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