三位数进退位加减法1000题

136+969= 719-485= 427+878= 533-243= 730+506= 335-147= 497+596= 836-280= 169+643= 943-569= 666+684= 617-134= 972+325= 890-873= 627+982= 434-294= 688+131= 960-725= 139+213= 227-167= 645+545= 320-214= 790+837= 406-339= 166+445= 851-753= 754+959= 450-408= 915+856= 727-365= 373+265= 767-178= 569+245= 662-134= 172+146= 912-324= 636+764= 641-489= 746+322= 743-134= 185+706= 223-179= 184+137= 780-632= 804+900= 283-269= 505+810= 905-499= 529+823= 361-138= 627+967= 420-194= 739+787= 824-164= 448+632= 382-346= 255+107= 311-154= 882+455= 725-577= 747+448= 981-703= 307+628= 932-699= 975+334= 714-632= 347+942= 400-356= 622+193= 516-259= 300+729= 725-572= 258+488= 920-373= 773+178= 819-196= 830+703= 520-137= 315+762= 808-674= 781+365= 845-436= 914+355= 908-743= 597+957= 683-366= 811+813= 928-438= 962+372= 443-107= 109+169= 502-370= 560+507= 742-436= 669+911= 844-660= 261+457= 961-482= 987+897= 855-496= 557+664= 555-248= 568+910= 544-250= 718+563= 950-153= 996+214= 602-345= 168+383= 621-442= 447+178= 845-363= 471+473= 962-518= 918+840= 703-221= 598+567= 910-278= 967+304= 593-375= 965+319= 559-464= 368+850= 347-139= 618+984= 970-419= 886+561= 612-320= 390+646= 291-208= 991+900= 602-573= 235+786= 713-645= 987+954= 861-152= 629+435= 916-376= 945+235= 952-135= 871+456= 916-858= 370+451= 850-431= 939+398= 302-215= 340+376= 655-527= 996+883= 544-168= 968+993= 853-662= 764+196= 962-668= 968+795= 511-234= 776+511= 895-116= 443+369= 221-122= 649+363= 532-105= 756+429= 602-428= 851+940= 984-693= 800+993= 844-105= 423+670= 831-597= 407+961= 260-237= 452+932= 988-197= 446+886= 382-334= 529+195= 900-456= 512+586= 657-609= 436+927= 270-234= 958+992= 750-176= 866+817= 994-559= 351+793= 441-206= 481+761= 603-287= 768+175= 953-676= 841+490= 654-445= 568+235= 607-285= 413+994= 752-633= 953+963= 533-136...