12.列竖式计算.(打“※”的要验算)
58÷7= | ※204-108= | ※400-259= |
3×26= | 824×2= | 49×4= |
6×724= | 805×6= | 830×7= |
11.直接写得数.
0 164462 164470 164476 164480 164486 164488 164492 164498 164500 164506 164512 164516 164518 164522 164528 164530 164536 164540 164542 164546 164548 164552 164554 164556 164557 164558 164560 164561 164562 164564 164566 164570 164572 164576 164578 164582 164588 164590 164596 164600 164602 164606 164612 164618 164620 164626 164630 164632 164638 164642 164648 164656 199269
69+25= | 1400-800= | 0×500= | 13×4= |
36×2= | 6×500= | 25×2= | 17×5= |
24×3= | 800×8= | 4×16= | 7×0= |
5×9+7= | 3×8-9= | 4×6+8= | 9×4+7= |