直接写出得数: 3.04+2.6=________; | 568-199=________; |
0.65÷1.3=________; | 4×÷4×=________; |
÷=________; | ×=________; |
-=________; | 72×(-)=________. |
直接写出得数: 3.04+2.6=________; | 568-199=________; |
0.65÷1.3=________; | 4×÷4×=________; |
÷=________; | ×=________; |
-=________; | 72×(-)=________. |