1、900-807= 784-685= 765= 633=458+542= 363= 819= 786=819= 666= 516= 782=642= 648= 6303= 524=455= 253= 797= 2852=5645= 4615= 31142= 888=3234= 1086+231= 567+1238= 2678-567=470-9= 522+2346= 3127= 570+1028=819= 660-125= 804+127= 462-123=780+1234= 7299-2569= 6246= 2500+300=156-97= 386+479= 32112= 1253=8250=
2、 52124= 3154= 1065=4833= 8236= 493= 6765=52318= 51226= 816+2358= 3212=453= 567+284= 602-394= 4612=606-208= 637= 1985+303= 1237=464= 4658= 3265= 488=377= 784-685= 7645= 675=564= 458+542= 423= 879=497-299= 2008-1279= 472+1028= 1233+232=2340-123= 4578-2312= 3242= 443=2341+123= 496= 637= 70208=334-123=
3、546+1230= 9989= 188+119=2000-1098= 8024-1506= 9243+7853= 3787=5307= 7000-3505= 7536= 2345-1123=438+741= 718= 38+1279= 233+938=378+427= 2500+300= 156-97= 386+479=3212= 5364+132= 3456-789= 234-123=1123-234= 3451+123= 12347= 232=12324= 2134-123= 2010+2311= 445=234-123= 678+123= 345+123= 2336=1123-234= 2345= 123+213= 546-378=1238= 2345-1239= 234+222= 678=1234-234= 567+145= 6789= 7890-6778=1234-567= 678+243= 7890-4563= 567=4567-890= 678+89= 346= 2389-986=12355= 234+789= 5683-3422= 1359=3452-334= 23457= 663= 3466-784=2345-123= 456+1267= 475+553= 34561=3567-234= 677= 4567-2345= 568+1221=
