学习组织60个学生参加体操表演．
16．列竖式计算
| 37×58= | 60×37= | 15-7.4= |
| 18.4+5.9= | 43.5-17.8= | 58×92= |
15．直接写出得数
0 162573 162581 162587 162591 162597 162599 162603 162609 162611 162617 162623 162627 162629 162633 162639 162641 162647 162651 162653 162657 162659 162663 162665 162667 162668 162669 162671 162672 162673 162675 162677 162681 162683 162687 162689 162693 162699 162701 162707 162711 162713 162717 162723 162729 162731 162737 162741 162743 162749 162753 162759 162767 199269
| 25×40= | 48+36= | 0.7+1.2= | 50-18= |
| 16×5= | $\frac{4}{8}+\frac{2}{8}$= | 1.5-0.8= | 505÷5= |
| 1-$\frac{2}{6}$= | 320×40= | 19×53≈ | 180×400= |
