17.递等式计算(能简算的要简算)
0 159504 159512 159518 159522 159528 159530 159534 159540 159542 159548 159554 159558 159560 159564 159570 159572 159578 159582 159584 159588 159590 159594 159596 159598 159599 159600 159602 159603 159604 159606 159608 159612 159614 159618 159620 159624 159630 159632 159638 159642 159644 159648 159654 159660 159662 159668 159672 159674 159680 159684 159690 159698 199269
$\frac{4}{5}$×3.5+5.5×80%+0.8 | (8.8-23.4×$\frac{1}{3}$)÷$\frac{5}{9}$ | 87.58-(7.58-3.8) |
$\frac{13}{18}$÷($\frac{5}{6}$+$\frac{2}{3}$×$\frac{3}{8}$) | 1+$\frac{1}{2}$+$\frac{1}{4}$+$\frac{1}{8}$+$\frac{1}{16}$+$\frac{1}{32}$ | 8×0.4×12.5×2.5 |