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科目:小學(xué)數(shù)學(xué) 來源: 題型:
計算: 4x-7×1.3=9.9 |
1
|
3-
| ||||||||||||||
0.9-(0.15+0.35÷
|
7.25-3
|
(2-
|
查看答案和解析>>
科目:小學(xué)數(shù)學(xué) 來源: 題型:
求未知數(shù)x. ①2x-24=40 |
②
|
③4x-7×1.3=9.9 | ④1:0.4=1.35:X. |
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