11.直接写出得数.
7.8-5.6= | 5.8+4.2= | 7.5-5= | 2.31×2= |
0.56+4.54= | 4×0.25= | 0.6×15= | 0.45÷0.9= |
8.3-2.63= | 0.54÷0.6= | 8.1÷3= | 1.25×5×8= |
9.一个数既是24的因数,又是24的倍数,这个数是( )
A. | 3 | B. | 12 | C. | 24 |
8.至少用( )个棱长1cm的小正方体才拼能成一个大正方体.
0 155610 155618 155624 155628 155634 155636 155640 155646 155648 155654 155660 155664 155666 155670 155676 155678 155684 155688 155690 155694 155696 155700 155702 155704 155705 155706 155708 155709 155710 155712 155714 155718 155720 155724 155726 155730 155736 155738 155744 155748 155750 155754 155760 155766 155768 155774 155778 155780 155786 155790 155796 155804 199269
A. | 6 | B. | 4 | C. | 8 |