文档介绍：万以内加减法口算练习万以内加减法口算练习3500+500=      4500-800=       410+90=        3000+7000=      580-40=       780+60= 2300+670=      1820+3050=      8070-3100=     5730-680=       10000-280      3900+2050=     450-190=      2800+300=2160-380=      9000-5000=      370=5800=      250-80=         4780+250=     1400-900=6000+40=       580-40=         780+60=       1300-800=260-90=        60+2300=        9000-800=      820-70=         1700+300=     680-400=745-206=        489-127=        570-480=       840+400=        700-80=       284+314=840-480=       940+4520=       670-420=       90+4600=        1578-589=     3657+2569=1976+4857=     583+6758=2130+425=      1867+2396=      8241-1989=    4102-2546=9134-4875=      2311-989=       4899-2365=     1976+4857=      583+6758=     2130+425=1867+2396=     4102-2546= 1490+703=     450+490=360-270=       4000+300=       9826-700=       3229-212=       7867-3980     786+1628=7250+890=      7000-200=       4500-80=      6508-1200=560+2900=      4375+3268=      3500+500=      4500-400=       410-90=       80+540=600-400=       3000+7000=320+3200=       6827-286=       6721+672=       3219+200=        4530+260=      8700+1200=      780+120=      300+700=1200+750=      4300+2070=      7203+385=      2380+150=      3720+1260=    5000+50=7002+130=      8510+530=       3900+2050=    3264-1578=4200+800=      4756+2867= 7500-600=      8656-256=       1400+3724=    526+1784=6327-3420     3720+1260=7000-200=       5000+50=        4500-80=        7002+130=        6508-1200     8510+530=8070-3100=      7250+890=        5730-680=       10000-280=     6425-2617=     9834-325=       8500-500=      7341-2596=      5620+3829=    9990-4391=751+6424=      8213-4396=579-367=       6891+2109=      899+7669=     10000-458=247+591=       600-240=        376+519=       980-650=        808-436=      483+125=728-463=       5371+3427= 10000-3726=    9002-5273=      5636+1928=    4367+2627=3000-196=      10000-3756=      2769+2756=     4936+2173=     6302-2123=    3810-2