三年级数学加减混合运算 一.列竖式计算 779+116-338= 460+101-263= 522+156-2= 635-595+425= 192-125+365= 205+765-429= 925-365+645= 484-262+36= 98+517-153= 59-53+266= 332+411-499= 208+422-218= 878-164+66= 230-140+358= 815-434+122= 736+93-720= 596-430+345= 125-106+651= 616+199-395= 113-110+431= 529-485+110= 445-224+140= 456-432+218= 762-520+39= 469+399-545= 434+331-32= 464+196-129= 318+676-280= 875-781+53= 474+199-358= 16 798+101-714= 16 526-257+31= 17 304-14+232= 17 878+72-452= 18 33+792-80= 18 208+112-119= 19 5+493-215= 19 812-701+72= 20 492+337-688= 20 153+770-417= 1 607+299-370= 1 792-449+41= 2 465+87-525= 2 543+54-297= 3 524-374+80= 3 505+144-303= 4 4+965-268= 4 394-66+580= 5 516+194-256= 5 862-637+348= 6 542-197+457= 6 470+397-457= 7 136-59+20= 7 240-206+113= 8 224+669-891= 8 769+140-484= 9 801-354+77= 9 777-715+209= 10 219-639+609= 10 474-466+125= 11 487-201+157= 11 640+297-197= 12 712-421+185= 12 756+102-576= 13 67+814-582= 13 377-247+100= 14 779-481+194= 14 705+85-58= 15 481-21+85= 15 233+722-738= 16 880-584+57= 16 245+593-388= 17 455+21-210= 17 40+289-111= 18 628+165-699= 18 827-647+31= 19 952-877+846= 19 178+735-380= 20 899+29-73= 20 380-210+497= 1 608+297-765= 1 892-195+15= 2 853-654+105= 2 386+380-194= 3 286+336-73= 3 673+271-783= 4 489+379-527= 4 84+786-803= 5 993-906+3= 5 437+106-171= 6 39-39+13= 6 284-131+312= 7 47+221-20= 7 392-360+337= 8 862-462+6= 8 380+209-563= 9 764+171-842= 9 935-791+590= 10 269-84+131= 10 172+677-233= 11 746+23-545= 11 893-439+25= 12 596+43-168= 12 337-819+642= 13 266-857+670= 13 321+447-475= 14 693-12+135= 14 377+292-383= 15 61+920-826= 15 998-721+627= 16 577+421-190= 16 314-596+420= 17 151+174-35= 17 263+693-186= 18 674+133-135= 18 445+477-823= 19 160-48+57= 19 704-642+113= 20 467-451+8= 20 302-197+140= 1 544-296+217=...