1、小学二年级连加连减练习题450道连加连减题练习623441=623513=634912=521719=913723=222817=423730=271623=624954=783936=743725=685736=362618=813516=841981=393523=351917=82327=683918=472817=672938=842924=792834=261718=664813=855614=721823=85734=453626=723936=782918=471938=451639=421936=741827=381617=345817=531618=432514=362773
2、=322218=521659=523417=823336=613925=321762=911729=361637=912536=401363=672817=84926=293528=45936=461927=76188=362726=25846=551767=721734=582936=471848=472918=761918=763858=462736=563828=752647=45837=522328=633713=443917=701923=162313=571636=351715=502428=221922462822=481922=864524704224=725455=16272
3、6=431942=632522=401227=895631=763714=541928=796412=984821=641922=755544=563615=676056=855029=423224=553819=152422=692419=935627=233212=42241=751787=351618=422926=746817=641712=683618=245817=533927=432823=56178=533618=632517=732418=562736=74188=834917=833718=462718=425918=533517=633413=644536=321936=
4、60378=722613=523713=543536=893723=513917=522736=632713=633717=612623=482317=574836=542917=621918=471936=421741=865416=542813=273617=653618=544523=352723=844817=402936=484823=602517=724517=46388=562817=786913=723723=532818=965918=751733=543732=591917=554722=732945=562717=125923=985618=351713=603813=3
5、62517=865813=421636=421917=755918=243836=422317=711932=625654=172557=225545462822=704236=725426=753329=401227=763748=796438=564636=553850=935635=233219=562860=218260=363414=731271=21826044512=1007622=724532542118=674722=218217=832710=542118=653318=68653=545217=885124=76631=631811=651547=773455=43291
6、3=352828=773842=603435=172710=553815=544136=998877=751530=922611=423754=776422=122919=691036=271228=672737331715=753610=725412653915=621824=542118=532919=351228=861215=573331=36279=771916=883418=853627=127962=512728=514253=77656=715236=752426=752423=324538=814536=241640=631242=533715=632328=482618=5
7、61836=442340=561713=781323=25+29+17=30+23+31=50+16+18=2+13+23=59+10+9=34+18+18=2+27+41=3+43+29=19+64+6=54+26+12=55+6+10=49+23+11=2+56+8=2+22+16=35+41+1=52+7+1=13+6+10=12+13+31=66+7+15=3+59+16=5+9+36=14+37+3=11+6+16=7+52+7=57+5+11=80+4+1=6+2+54=50+46+2=7+56+20=13+15+4=44-12+11=11+56+10=6+42+29=43+43+
8、5=36+16+22=36+5+25=4+20+48=47+31+10=6+41+51=81-25-35=55-14-31=55-14-31=63-40-1=77-1-41=41-4-28=99-21-32=94-79-3=72-17-37=95-71-11=96-33-53=74-12-11=68-7-32=97-7-25=89-59-27=33-9-12=79-19-38=68-8-37=97-60-19=58-6-19=97-15-63=81-16-3=95-6-62=92-17-71=1+99-68=80+12-9=97-36+32=77+17-20=77+15-54=7+26-8=7
9、7-64+67=13-7+61=50-22-10=92-81-6=54-30-20=78-3-37=61-8-18=91-43-47=45-31-1=82-63-1=68-5-46=78-34-14=86-29-49=79-39-8=50-40-1=61-38-2=75-16-46=42-8-13=10+68-39=59+31-51=82-69+77=46-26+14=81+13-44=62-57+94=64-39+3=99-34+18=17+80-47=77+11-54=59-33+46=67+23-78=30+45-69=1+90-81=47-35+63=45-44+48=98-35+27=5+88-8=38+34-59=51+29-67=74-59+20=20-16+33=48+28-15=4+80-15=6+86-69=67+2-52=88-83+48=35-21+11=70-36+24=59-16+19=10+75-29=77-22+15=77-46+32=65-38+26=79+19-56=56+74-26=58-36+27=84-27+16=93+23+94=69-(39-23)=
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