16．直接写出得数
| 4.7-3.06= | 1-0.07= | 10.34+2.56= | 20+8.03= | 13.8×10= |
| 0.1÷100= | 125×9×8= | 35-5×0= | 230÷2÷5= | 25×4÷25×4= |
13．（用竖式计算，带☆要验算）
0 157636 157644 157650 157654 157660 157662 157666 157672 157674 157680 157686 157690 157692 157696 157702 157704 157710 157714 157716 157720 157722 157726 157728 157730 157731 157732 157734 157735 157736 157738 157740 157744 157746 157750 157752 157756 157762 157764 157770 157774 157776 157780 157786 157792 157794 157800 157804 157806 157812 157816 157822 157830 199269
| 4.6+3.8= | 8.4-1.7= | 609÷3= | |
| ☆680÷4= | 37×24= | 29×72= |