19．在横线里填上“＞”“＜”或“=”
0 164540 164548 164554 164558 164564 164566 164570 164576 164578 164584 164590 164594 164596 164600 164606 164608 164614 164618 164620 164624 164626 164630 164632 164634 164635 164636 164638 164639 164640 164642 164644 164648 164650 164654 164656 164660 164666 164668 164674 164678 164680 164684 164690 164696 164698 164704 164708 164710 164716 164720 164726 164734 199269
| 5.06×1.01＞5.06 | 1÷0.3＞0.3÷1 | 3.2×0.8＜3.2×1.2 |
| 3.1÷0.98＞3.1 | 5.1÷0.01=5.1×100 | 1÷0.25＞1×0.25 |