18.
直接写上得数. 0.1×0.4= | 6÷0.02= | 1.02×5= | 2.5×0.9×4= |
4.2÷2= | 1.8÷0.6= | 1.5×50= | 26×0.8-0.7×26= |
16.有m个苹果,每袋装8个,可以装( )袋.
A. | m÷8 | B. | 8m | C. | m-8 |
15.当a=3.5时,a2=( )
0 162437 162445 162451 162455 162461 162463 162467 162473 162475 162481 162487 162491 162493 162497 162503 162505 162511 162515 162517 162521 162523 162527 162529 162531 162532 162533 162535 162536 162537 162539 162541 162545 162547 162551 162553 162557 162563 162565 162571 162575 162577 162581 162587 162593 162595 162601 162605 162607 162613 162617 162623 162631 199269
A. | 7 | B. | 12.25 | C. | 122.5 |