直接写得数. +=________; | 2.5÷=________; | 7.2÷9=________; | ×6×÷6=________; |
3.5-0.35=________; | -=________; | 266+199=________; | (+0.55)×0=________. |
直接写得数. +=________; | 2.5÷=________; | 7.2÷9=________; | ×6×÷6=________; |
3.5-0.35=________; | -=________; | 266+199=________; | (+0.55)×0=________. |