8．在横线上填上“＞”、“＜”或“=”．
| 365×0.8＜365 | 1×9.01＞1 | 6.4×3.2＞3.2 |
| 4.52×1.1＞4.52 | 2.88×1.2＞2.88 | 5.4×0.98＞0.98 |
3．竖式计算．（带★的题目要验算）
| 8.9×7 | 0.18×15 | ★3.6×5.5 |
| 0.025×14 | 3.06×3.6 | 8.32×420 |
| 1.7×3.62 | 0.63×1.05 | 0.93×0.48 |
2．不要计算，填出下列各算式的积有几位小数．
0 162525 162533 162539 162543 162549 162551 162555 162561 162563 162569 162575 162579 162581 162585 162591 162593 162599 162603 162605 162609 162611 162615 162617 162619 162620 162621 162623 162624 162625 162627 162629 162633 162635 162639 162641 162645 162651 162653 162659 162663 162665 162669 162675 162681 162683 162689 162693 162695 162701 162705 162711 162719 199269
| 算式 | 1.36×0.8 | 3.56×7.32 | 24×0.8 | 2.5×0.4 |
| 积 | 3 | 4 | 1 | 0 |