18.求10个0.6相加的和是多少,列式是( )
A. | 0.6+0.6 | B. | 10+0.6 | C. | 10×0.6 |
14.下面的算式中,( )与600×3的结果不同.
0 162491 162499 162505 162509 162515 162517 162521 162527 162529 162535 162541 162545 162547 162551 162557 162559 162565 162569 162571 162575 162577 162581 162583 162585 162586 162587 162589 162590 162591 162593 162595 162599 162601 162605 162607 162611 162617 162619 162625 162629 162631 162635 162641 162647 162649 162655 162659 162661 162667 162671 162677 162685 199269
A. | 600+600+600 | B. | 3×600 | C. | 3×60 |