3．
0 159668 159676 159682 159686 159692 159694 159698 159704 159706 159712 159718 159722 159724 159728 159734 159736 159742 159746 159748 159752 159754 159758 159760 159762 159763 159764 159766 159767 159768 159770 159772 159776 159778 159782 159784 159788 159794 159796 159802 159806 159808 159812 159818 159824 159826 159832 159836 159838 159844 159848 159854 159862 199269
| 口算 13×2= | 0.3+0.7= | 25×3= | 20+2.3= |
| 12×40= | 2.8-0.2= | 540÷6= | 12×11= |
| 18×20= | 0.8+1.1= | 80×50= | 1.1+0.5= |
| 40×60= | 2.4+0.2= | 25×40= | 50×70= |
| 720÷9= | 6.5-2.2= | 8×20= | 300÷6= |
王师傅生产了64个零件，已经装了8盒，还剩下多少个没有装？
