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脱式计算:(1.5-0.6)×(3-1.8)18÷1.5-0.15910÷〔12×(65-310〕
题目详情
脱式计算:
(1.5-0.6)×(3-1.8) | 18÷1.5-0.15 |
|
▼优质解答
答案和解析
(1)(1.5-0.6)×(3-1.8),
=0.9×1.2,
=1.08;
(2)18÷1.5-0.15,
=12-0.15,
=11.85;
(3)
÷[
×(
-
)],
=
÷[
×
],
=
÷
,
=2.
(1)(1.5-0.6)×(3-1.8),
=0.9×1.2,
=1.08;
(2)18÷1.5-0.15,
=12-0.15,
=11.85;
(3)
9 |
10 |
1 |
2 |
6 |
5 |
3 |
10 |
=
9 |
10 |
1 |
2 |
9 |
10 |
=
9 |
10 |
9 |
20 |
=2.
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