1.计算
0 138500 138508 138514 138518 138524 138526 138530 138536 138538 138544 138550 138554 138556 138560 138566 138568 138574 138578 138580 138584 138586 138590 138592 138594 138595 138596 138598 138599 138600 138602 138604 138608 138610 138614 138616 138620 138626 138628 138634 138638 138640 138644 138650 138656 138658 138664 138668 138670 138676 138680 138686 138694 199269
| 3×(215+185 )-1000 | 24×(88+412 ) | 10×7+7×8 |
| 260×2+260 | (532-30)-( 47+112 ) | 4000÷[20×( 55-15 )] |