18．直接写出的数．
0 159488 159496 159502 159506 159512 159514 159518 159524 159526 159532 159538 159542 159544 159548 159554 159556 159562 159566 159568 159572 159574 159578 159580 159582 159583 159584 159586 159587 159588 159590 159592 159596 159598 159602 159604 159608 159614 159616 159622 159626 159628 159632 159638 159644 159646 159652 159656 159658 159664 159668 159674 159682 199269
| 906+94= | 0.7×10= | 0.8+9.2= | 700-388= | 1672÷8= |
| $8.6-1\frac{3}{5}$= | $10-2\frac{6}{7}$= | $5\frac{3}{4}×0$= | $\frac{1}{6}×5.4$= | $\frac{5}{12}×\frac{6}{25}$= |