直接写出得数: 1787-998=________; | +0.25=________; | ×=________; | 21÷=________; |
×÷×=________; | ÷÷=________; | ×12.1-1=________; | +÷=________. |
直接写出得数: 1787-998=________; | +0.25=________; | ×=________; | 21÷=________; |
×÷×=________; | ÷÷=________; | ×12.1-1=________; | +÷=________. |