5.直接写出得数.
0.3×0.8= | 2.5×0.4= | 0.93×100= | 4.5×0.01= |
0.2×0.26= | 0.08×10= | 100×0.09= | 80×0.02= |
8×0.125= | 127×0+127= |
20.一种商品现在售价2000元,比原来降低了500元,比原来降低了( )
0 164516 164524 164530 164534 164540 164542 164546 164552 164554 164560 164566 164570 164572 164576 164582 164584 164590 164594 164596 164600 164602 164606 164608 164610 164611 164612 164614 164615 164616 164618 164620 164624 164626 164630 164632 164636 164642 164644 164650 164654 164656 164660 164666 164672 164674 164680 164684 164686 164692 164696 164702 164710 199269
A. | 20% | B. | $\frac{1}{3}$ | C. | 25% |