18.用竖式计算
0 158609 158617 158623 158627 158633 158635 158639 158645 158647 158653 158659 158663 158665 158669 158675 158677 158683 158687 158689 158693 158695 158699 158701 158703 158704 158705 158707 158708 158709 158711 158713 158717 158719 158723 158725 158729 158735 158737 158743 158747 158749 158753 158759 158765 158767 158773 158777 158779 158785 158789 158795 158803 199269
858÷3= | 643÷8= | 920÷9= | 8.1-6.5= |
32×19= | 76×67= | 40×45= | 3.8+4.7= |