三年级数学(上)计算题专项练习附答案集锦

三年级数学(上)计算题专项练习附答案集锦919+391+489=220+818-347=498+155-233=80+323=74+105+740=104×4=622+191-53=222-(342-305)=448-109-171=759-(943-626)=275-27+194=6/9-1/9=362×(213-206)=602+646-334=57+185=28+293+454=380-225=826+684+743=580+143×6=206×(429-425)=699-15-600=114+676+110=765+168=841+303×3=358-(80+30)=180+837=710-(829-762)=11×9+273=164+51+40=452-(141-12)=861-189-50=495+215=2/4-1/4=284-(352-283)=428-112-151=247-(388-279)=6/8-1/8=604+156+135=868+869+548=363×4-130=167-(453-442)=260-167=260+359=38×(491-483)=125+93-54=79×(352-343)=890-511-67=882+762+515=403-388+351=261×(256-253)=307-12×6=458-57×7=572-53+569=88×2+726=344-27×8=494+(799-430)=300+(242-41)=864+(769-449)=638-65×5=344-(227-141)=694-24-19=182+45=509+816+849=111×(461-456)=911-(570-316)=417-148-121=374×2-476=164+279=686-(555-16)=393+124×4=138×7-527=709-219=263-(158-102)=521+955+535=184+636+154=644×9-710=134×2-36=76×9-396=414-(138+29)=3/8-2/8=169-72=42×9=847-(47+191)=465-146×3=454-82-243=188+(300-293)=337-288+983=795-201=736-131-484=24×(53-50)=77×(61-52)=498+917+830=299-14=963-166-695=413×2=150+290-51=76+389=464×(28-25)=553+570-684=340-78-56=838×(610-607)=63+59=891×5-268=368-107-234=266×2-514=91×(137-128)=400×6=789-49-148=318+15×7=91+338=799×(862-854)=755×3-954=606+169-278=258×3+156=20+351×2=519+657=734+368+991=620×6=433-137×2=130×7=272+57=400-204-136=271×4=81+420=990-272×2=968-(20+825)=286×9=409-(267+54)=250-24×2=46+89=789×2-953=289-128+81=66×6=488-265-94=254+(425-23)=337-(252-201)=429+48-213=487+74+133=280-222+266=53+(107-66)=46×9=132+151=449-(67-36)=257×(454-451)=260+234-199=92×5-210=106×(531-527)=376+(87-53)=431-77=361+63=161+147=38×5=771×3-432=33×9-258=785-200×2=134-(183-63)=686+349+796=425-(108+54)=764-349+123=55×(480-471)=471+271=211+(797-496)=583-(638-115)=43+(790-216)=149×8-497=993-71-744=86+777+608=75×6-250=423-115=156×4+203=240+286=187+230×2=671-173-112=443+(332-257)=187+84+405=740-453+995=775-363×2=482+29+505=62+(749-27)=35×7=443-(211+136)=160×3=697+551-439=595-139+140=218+235-239=422-(768-554)=126+(255-168)=2/8+4/8=156×5=729+99+27=492-(252+111)=952+(284-137)=304+(195-186)=213+(401-389)=1/5+3/5=425-(915-729)=483-67-359=59×8+269=550-(794-424)=818+312+378=723×2-999=242-219=101×3=362+346+227=2/7+5/7=482-440+249=674-57-82=408+866-84=1/6+4/6=669-146+533=94×9=915×6=188×9=342-(460-340)=714-(334-32)=252+(119-18)=269+83×4=316×(111-108)=288×2=55×5=636+(936-919)=61-(150-110)=236×3+250=479-(262+174)=126-42+392=42+236=830+395+39=615+110+142=283-223=352-106=39+253-27=316-(438-393)=548-43×4=84×(131-128)=454-120×2=919-197=313-(217+32)=157×6=69×5+49=69×4=212-27×3=218×3+994=320-193-120=3/7-1/7=406-75×3=71×3+95=108×(141-135)=792×3=945-439+25=496×(903-898)=213-19×9=264+229-471=846-(430-48)=853×5=102×7=15+171-21=347+880-137=976+(594-260)=165+(592-41)=464-(277-47)=346+(442-142)=5/8+2/8=733-(676-455)=355-210+40=741×6-587=816×(960-952)=62-(12+19)=743×5-756=150-14=769-723=158×6-352=316+161=17+410×2=163-(68+43)=195+168-165=404-25×2=483-(439+22)=250×2=625-61×8=951-597+168=134+56-29=992-534=348+(443-245)=103-25×3=186×4=210-(108+51)=107×5-247=388×(915-911)=178×4-454=185×6=872-(406+216)=449-12×9=65+342-400=490-236=398-27-61=246×4-929=297-142+61=346-(146-70)=57×3-104=532-71-145=719+458-910=867-(81+409)=922-408-241=52-52+63=45×(154-146)=92×(299-291)=360-100-104=11×4=120×3-292=169-45×2=585+(655-344)=419-(314+101)=4/7+3/7=28×9=281-(341-192)=808-(38+170)=397-(318+12)=210+322-337=824+469-408=74×(90-85)=2/7+4/7=733-697+503=813×6=574-(88+426)=355+116=463-92×4=322×3-950=355+379=275-73×3=607-393=960+707-697=273+(473-248)=382-334+316=256-125+120=379×8=995×4=259-18×9=987-124=406-26×6=512-185=702×(312-303)=874-46×3=72+186+540=2/3-1/3=113×4+332=997-108×5=41×9+225=81+(473-34)=673-254×2=362-(226+81)=111+72=338×2+492=375-120×3=354-(50+21)=307-(29+81)=961+154+919=718-331=44+48=97-96+28=822+479×2=814×9=143-86+903=823×6=59×8+370=231×9=13×9-56=709-172-238=178-25-52=769-165×2=798-319×2=777×9-396=491-334-34=650-577=326-37×6=665+347=257-24=439-255=334-135×2=57+269-47=347-299=22×8+392=742-(292+337)=743-(485-173)=254-(114-33)=797-649-104=79+262+27=649-(942-794)=52×2+127=432-20×2=374-90-178=752-740=428-(134+244)=83×4+51=407-(489-219)=32×(205-201)=50×3+111=222+(790-291)=884-185-634=996×5=602×(846-842)=376-(23+341)=348-97×3=637+96×8=93+342=328-40×2=958-(130+579)=497+172×5=469-186=790+992-569=876-453-419=350-30-143=356×(808-802)=468-373-67=209-43×4=455-302+324=4/6-1/6=946-(918-876)=409+11×5=44×2=996+(969-755)=178×6-588=180+67=429+(243-208)=622-(204-166)=192+196-15=191×3=45×7-298=782+239=425-(494-490)=622-(494-249)=449-(191-107)=126×3+428=350+70×5=314+116-238=845+496-173=473-77=500-191+440=488-(632-157)=349-163+102=344+126=146-21×2=697+64-683=232×4=391×5-740=380+320=460×(816-811)=520×4-417=391+459+946=485-455=282-(364-276)=146+298=450-(141+78)=420+231=301+585+79=617×(535-530)=252+(464-48)=308+237=102+290+396=168+338+189=491×(586-583)=357-253=182+259+26=862-(925-562)=46+(369-356)=362-(130+33)=909+985-543=326-60×5=268+115-226=878-614=950+828=117+273+850=56+113-55=446-305-88=896-357-458=317×2-206=95+475=302-54-18=372×2-160=874-(39+686)=4/8-3/8=92+567+179=386-49-23=445-(455-280)=529-121×2=938-87×5=872-120×6=29+376+35=260-(475-416)=472+141=676×(620-614)=489-(346+15)=995-745+119=57×9-231=514+311+24=4/10+3/10=484-30×9=98-13×7=620×7-34=47+353+118=368+343=329+115×5=236-(404-347)=978-(848-661)=468+122×3=942-(211+654)=907-252=482-37×7=459-40-417=224-198+135=917-873=137+(517-128)=458-287=476-222×2=102×5-173=286-(146+131)=917+30×7=332-155=878-595=27+95×8=447-189×2=540-(982-650)=585×3-987=973+(880-28)=566+222×4=547×9=775-572+579=928-84=170×5-202=75+145+27=119×(211-204)=80×9=629+276×2=4/8+3/8=184×4+682=399×3-414=802-106×7=910×7=416-199=553+120=19+78=448×(681-676)=187+(200-124)=69×(44-37)=264+148+467=152+(159-13)=365+(398-361)=913-327+142=81×5-160=323-(251+43)=25×2+27=609-(98+74)=449-42-386=436-144+108=439+23×6=99+48=999-(386+498)=225-40×2=238-222+203=324-236+336=438+51-443=126×(799-790)=834-315+723=153×6+281=732-404-221=178+269+858=295-129=265+204-22=972-901+87=745×(566-560)=842+(952-157)=43×2=420-(441-438)=398+387=101×(655-650)=76×(189-184)=633-48-580=273-210+235=456-433+353=381+(180-14)=983+577+660=398-217+41=654-537=103+404+616=16×(442-436)=5/7-1/7=86-56=251×(548-541)=2/7+3/7=236-92-129=231-23-37=330-80+75=474-(223-93)=107+250×2=32×3+592=449-308+105=978-(778+14)=213+(291-145)=315+90-177=810-(959-887)=228+43-240=90×(413-406)=374-74×5=872+206×2=334-(165+152)=685-98×3=242×4-358=576×9-581=216+13-203=568-215-37=142×(363-359)=413-(82+51)=873×7-493=839-350=289-(259+25)=200+252=639+240-810=560+724+211=161-(364-209)=594-(377+158)=132×(124-119)=755×3-576=874-374×2=351+536=297+64+169=278-167-103=752+179=73+(363-278)=349+(941-704)=762-227-120=422-242-166=991-(160+783)=359-14-140=272+479+68=47×(237-232)=200-(144+24)=189×9-546=659-50+419=904-842-25=749×(20-13)=37×2+245=437+120×3=343+361=544+599-246=822-(98+575)=914-(451-265)=283-63=230-(325-294)=182+(243-47)=134+594+881=771×7-449=286×(238-231)=374-158=699-22×8=120×(307-304)=340-(827-547)=331+83-259=212+100×2=490-41×7=656+456=708-(648-245)=252×(74-71)=347+45-23=468-211+97=630×(264-255)=472-(384-211)=251-124=188+166=399-(345-308)=404-(23+109)=873-(90+578)=855×3=283×(196-190)=80+790+302=742-120×4=329-26×5=585+121+144=58+287-257=416-(498-360)=562+349-739=392+(872-144)=298×(128-121)=70+426×2=223+49-166=569-63×4=423+119+305=977-52+324=262+156=81×6+485=326×3-302=260+510+62=206×3+579=92+353-104=672+842-543=144×(303-297)=878+(581-397)=407-306-37=386-362+303=166+327-113=96+396-381=698-(414+249)=432-75-200=195×(454-451)=405-18-363=271×7=479-65-224=266-36+277=727+289-929=999+816-582=55+(160-152)=332-138+236=253×2-224=611-200+131=509+480=194+355×2=912-100×2=544-12×3=454×2-906=302-223+334=612-42=326-(361-180)=231-97=85+(934-824)=884+188-181=861+152=85×2=347-317=152+118-182=593-(44+209)=497-(73+268)=455-(147+204)=1/5+2/5=711-(77+383)=455-259=50×5+49=655-258-336=829×6=20×2=895+128+562=4/7-2/7=395-310+369=747×8=790-639=259×3=247×(266-263)=303×8-128=491+46×9=2/8-1/8=755×9=358-(141+11)=346-40×7=113+463+161=629-536+498=399-194+254=872-381=951+554+755=497×6=516-(331+58)=28×5+629=20+416-341=229-72=418×9-137=656×7=407-218-27=439-132+134=129-100+111=415+149×2=7/9+2/9=55+(650-63)=557-108-349=689+(822-13)=181×3=54-(51-49)=38+145=844-(86+728)=487-304=403-29=424×2+46=161-53+585=938-308=159×8-258=237+(398-359)=83×8-471=455-34=387+628-100=442-66+106=448-407=70×8=802-(422+21)=768×6-263=614-(71+142)=337-307+264=416-100=711-693+720=13×4=44+641+66=196×(904-896)=837+(700-647)=610-(356+117)=155+(471-198)=422+418+421=84+321=970-585-236=66+(473-375)=473-18×9=339-316+200=105×5=2/5-1/5=464+86=290+113=421-195=388-22=494×(672-665)=464-(340-51)=438+(113-69)=267-(273-257)=151+299=298+146-166=859-(298+210)=65×(350-343)=886+557-796=294-145=847×6-377=527+(909-579)=385-168-83=203+228+84=556+(540-325)=816-518+993=171+265-94=97+138+198=177+(942-772)=93×(329-322)=118×4+464=160+(450-372)=303+140=608+859-65=460+55+109=779+243×4=107×7=21+(301-234)=109×7+806=520+124+120=963-(746-313)=238×4-143=863×6=458+(353-230)=447+152×3=468-145+665=182+(372-287)=493-(204+138)=390+998+468=458-233+274=315×9-906=130×2-245=193×3-177=712-(477+14)=359+(444-240)=375-36-205=898+846-528=670+368=305+(251-139)=607×(347-341)=265×3-273=794-177-315=161+310=参考答案919+391+489=1799220+818-347=691498+155-233=42080+323=40374+105+740=919104×4=416622+191-53=760222-(342-305)=185448-109-171=168759-(943-626)=442275-27+194=4426/9-1/9=5/9362×(213-206)=2534602+646-334=91457+185=24228+293+454=775380-225=155826+684+743=2253580+143×6=1438206×(429-425)=824699-15-600=84114+676+110=900765+168=933841+303×3=1750358-(80+30)=248180+837=1017710-(829-762)=64311×9+273=372164+51+40=255452-(141-12)=323861-189-50=622495+215=7102/4-1/4=1/4284-(352-283)=215428-112-151=165247-(388-279)=1386/8-1/8=5/8604+156+135=895868+869+548=2285363×4-130=1322167-(453-442)=156260-167=93260+359=61938×(491-483)=304125+93-54=16479×(352-343)=711890-511-67=312882+762+515=2159403-388+351=366261×(256-253)=783307-12×6=235458-57×7=59572-53+569=108888×2+726=902344-27×8=128494+(799-430)=863300+(242-41)=501864+(769-449)=1184638-65×5=313344-(227-141)=258694-24-19=651182+45=227509+816+849=2174111×(461-456)=555911-(570-316)=657417-148-121=148374×2-476=272164+279=443686-(555-16)=147393+124×4=889138×7-527=439709-219=490263-(158-102)=207521+955+535=2011184+636+154=974644×9-710=5086134×2-36=23276×9-396=288414-(138+29)=2473/8-2/8=1/8169-72=9742×9=378847-(47+191)=609465-146×3=27454-82-243=129188+(300-293)=195337-288+983=1032795-201=594736-131-484=12124×(53-50)=7277×(61-52)=693498+917+830=2245299-14=285963-166-695=102413×2=826150+290-51=38976+389=465464×(28-25)=1392553+570-684=439340-78-56=206838×(610-607)=251463+59=122891×5-268=4187368-107-234=27266×2-514=1891×(137-128)=819400×6=2400789-49-148=592318+15×7=42391+338=429799×(862-854)=6392755×3-954=1311606+169-278=497258×3+156=93020+351×2=722519+657=1176734+368+991=2093620×6=3720433-137×2=159130×7=910272+57=329400-204-136=60271×4=108481+420=501990-272×2=446968-(20+825)=123286×9=2574409-(267+54)=88250-24×2=20246+89=135789×2-953=625289-128+81=24266×6=396488-265-94=129254+(425-23)=656337-(252-201)=286429+48-213=264487+74+133=694280-222+266=32453+(107-66)=9446×9=414132+151=283449-(67-36)=418257×(454-451)=771260+234-199=29592×5-210=250106×(531-527)=424376+(87-53)=410431-77=354361+63=424161+147=30838×5=190771×3-432=188133×9-258=39785-200×2=385134-(183-63)=14686+349+796=1831425-(108+54)=263764-349+123=53855×(480-471)=495471+271=742211+(797-496)=512583-(638-115)=6043+(790-216)=617149×8-497=695993-71-744=17886+777+608=147175×6-250=200423-115=308156×4+203=827240+286=526187+230×2=647671-173-112=386443+(332-257)=518187+84+405=676740-453+995=1282775-363×2=49482+29+505=101662+(749-27)=78435×7=245443-(211+136)=96160×3=480697+551-439=809595-139+140=596218+235-239=214422-(768-554)=208126+(255-168)=2132/8+4/8=6/8156×5=780729+99+27=855492-(252+111)=129952+(284-137)=1099304+(195-186)=313213+(401-389)=2251/5+3/5=4/5425-(915-729)=239483-67-359=5759×8+269=741550-(794-424)=180818+312+378=1508723×2-999=447242-219=23101×3=303362+346+227=9352/7+5/7=1482-440+249=291674-57-82=535408+866-84=11901/6+4/6=5/6669-146+533=105694×9=846915×6=5490188×9=1692342-(460-340)=222714-(334-32)=412252+(119-18)=353269+83×4=601316×(111-108)=948288×2=57655×5=275636+(936-919)=65361-(150-110)=21236×3+250=958479-(262+174)=43126-42+392=47642+236=278830+395+39=1264615+110+142=867283-223=60352-106=24639+253-27=265316-(438-393)=271548-43×4=37684×(131-128)=252454-120×2=214919-197=722313-(217+32)=64157×6=94269×5+49=39469×4=276212-27×3=131218×3+994=1648320-193-120=73/7-1/7=2/7406-75×3=18171×3+95=308108×(141-135)=648792×3=2376945-439+25=531496×(903-898)=2480213-19×9=42264+229-471=22846-(430-48)=464853×5=4265102×7=71415+171-21=165347+880-137=1090976+(594-260)=1310165+(592-41)=716464-(277-47)=234346+(442-142)=6465/8+2/8=7/8733-(676-455)=512355-210+40=185741×6-587=3859816×(960-952)=652862-(12+19)=31743×5-756=2959150-14=136769-723=46158×6-352=596316+161=47717+410×2=837163-(68+43)=52195+168-165=198404-25×2=354483-(439+22)=22250×2=500625-61×8=137951-597+168=522134+56-29=161992-534=458348+(443-245)=546103-25×3=28186×4=744210-(108+51)=51107×5-247=288388×(915-911)=1552178×4-454=258185×6=1110872-(406+216)=250449-12×9=34165+342-400=7490-236=254398-27-61=310246×4-929=55297-142+61=216346-(146-70)=27057×3-104=67532-71-145=316719+458-910=267867-(81+409)=377922-408-241=27352-52+63=6345×(154-146)=36092×(299-291)=736360-100-104=15611×4=44120×3-292=68169-45×2=79585+(655-344)=896419-(314+101)=44/7+3/7=128×9=252281-(341-192)=132808-(38+170)=600397-(318+12)=67210+322-337=195824+469-408=88574×(90-85)=3702/7+4/7=6/7733-697+503=539813×6=4878574-(88+426)=60355+116=471463-92×4=95322×3-950=16355+379=734275-73×3=56607-393=214960+707-697=970273+(473-248)=498382-334+316=364256-125+120=251379×8=3032995×4=3980259-18×9=97987-124=863406-26×6=250512-185=327702×(312-303)=6318874-46×3=73672+186+540=7982/3-1/3=1/3113×4+332=784997-108×5=45741×9+225=59481+(473-34)=520673-254×2=165362-(226+81)=55111+72=183338×2+492=1168375-120×3=15354-(50+21)=283307-(29+81)=197961+154+919=2034718-331=38744+48=9297-96+28=29822+479×2=1780814×9=7326143-86+903=960823×6=493859×8+370=842231×9=207913×9-56=61709-172-238=299178-25-52=101769-165×2=439798-319×2=160777×9-396=6597491-334-34=123650-577=73326-37×6=104665+347=1012257-24=233439-255=184334-135×2=6457+269-47=279347-299=4822×8+392=568742-(292+337)=113743-(485-173)=431254-(114-33)=173797-649-104=4479+262+27=368649-(942-794)=50152×2+127=231432-20×2=392374-90-178=106752-740=12428-(134+244)=5083×4+51=383407-(489-219)=13732×(205-201)=12850×3+111=261222+(790-291)=721884-185-634=65996×5=4980602×(846-842)=2408376-(23+341)=12348-97×3=57637+96×8=140593+342=435328-40×2=248958-(130+579)=249497+172×5=1357469-186=283790+992-569=1213876-453-419=4350-30-143=177356×(808-802)=2136468-373-67=28209-43×4=37455-302+324=4774/6-1/6=3/6946-(918-876)=904409+11×5=46444×2=88996+(969-755)=1210178×6-588=480180+67=247429+(243-208)=464622-(204-166)=584192+196-15=373191×3=57345×7-298=17782+239=1021425-(494-490)=421622-(494-249)=377449-(191-107)=365126×3+428=806350+70×5=700314+116-238=192845+496-173=1168473-77=396500-191+440=749488-(632-157)=13349-163+102=288344+126=470146-21×2=104697+64-683=78232×4=928391×5-740=1215380+320=700460×(816-811)=2300520×4-417=1663391+459+946=1796485-455=30282-(364-276)=194146+298=444450-(141+78)=231420+231=651301+585+79=965617×(535-530)=3085252+(464-48)=668308+237=545102+290+396=788168+338+189=695491×(586-583)=1473357-253=104182+259+26=467862-(925-562)=49946+(369-356)=59362-(130+33)=199909+985-543=1351326-60×5=26268+115-226=157878-614=264950+828=1778117+273+850=124056+113-55=114446-305-88=53896-357-458=81317×2-206=42895+475=570302-54-18=230372×2-160=584874-(39+686)=1494/8-3/8=1/892+567+179=838386-49-23=314445-(455-280)=270529-121×2=287938-87×5=503872-120×6=15229+376+35=440260-(475-416)=201472+141=613676×(620-614)=4056489-(346+15)=128995-745+119=36957×9-231=282514+311+24=8494/10+3/10=7/10484-30×9=21498-13×7=7620×7-34=430647+353+118=518368+343=711329+115×5=904236-(404-347)=179978-(848-661)=791468+122×3=834942-(211+654)=77907-252=655482-37×7=223459-40-417=2224-198+135=161917-873=44137+(517-128)=526458-287=171476-222×2=32102×5-173=337286-(146+131)=9917+30×7=1127332-155=177878-595=28327+95×8=787447-189×2=69540-(982-650)=208585×3-987=768973+(880-28)=1825566+222×4=1454547×9=4923775-572+579=782928-84=844170×5-202=64875+145+27=247119×(211-204)=83380×9=720629+276×2=11814/8+3/8=7/8184×4+682=1418399×3-414=783802-106×7=60910×7=6370416-199=217553+120=67319+78=97448×(681-676)=2240187+(200-124)=26369×(44-37)=483264+148+467=879152+(159-13)=298365+(398-361)=402913-327+142=72881×5-160=245323-(251+43)=2925×2+27=77609-(98+74)=437449-42-386=21436-144+108=400439+23×6=57799+48=147999-(386+498)=115225-40×2=145238-222+203=219324-236+336=424438+51-443=46126×(799-790)=1134834-315+723=1242153×6+281=1199732-404-221=107178+269+858=1305295-129=166265+204-22=447972-901+87=158745×(566-560)=4470842+(952-157)=163743×2=86420-(441-438)=417398+387=785101×(655-650)=50576×(189-184)=380633-48-580=5273-210+235=298456-433+353=376381+(180-14)=547983+577+660=2220398-217+41=222654-537=117103+404+616=112316×(442-436)=965/7-1/7=4/786-56=30251×(548-541)=17572/7+3/7=5/7236-92-129=15231-23-37=171330-80+75=325474-(223-93)=344107+250×2=60732×3+592=688449-308+105=246978-(778+14)=186213+(291-145)=359315+90-177=228810-(959-887)=738228+43-240=3190×(413-406)=630374-74×5=4872+206×2=1284334-(165+152)=17685-98×3=391242×4-358=610576×9-581=4603216+13-203=26568-215-37=316142×(363-359)=568413-(82+51)=280873×7-493=5618839-350=489289-(259+25)=5200+252=452639+240-810=69560+724+211=1495161-(364-209)=6594-(377+158)=59132×(124-119)=660755×3-576=1689874-374×2=126351+536=887297+64+169=530278-167-103=8752+179=93173+(363-278)=158349+(941-704)=586762-227-120=415422-242-166=14991-(160+783)=48359-14-140=205272+479+68=81947×(237-232)=235200-(144+24)=32189×9-546=1155659-50+419=1028904-842-25=37749×(20-13)=524337×2+245=319437+120×3=797343+361=704544+599-246=897822-(98+575)=149914-(451-265)=728283-63=220230-(325-294)=199182+(243-47)=378134+594+881=1609771×7-449=4948286×(238-231)=2002374-158=216699-22×8=523120×(307-304)=360340-(827-547)=60331+83-259=155212+100×2=412490-41×7=203656+456=1112708-(648-245)=305252×(74-71)=756347+45-23=369468-211+97=354630×(264-255)=5670472-(384-211)=299251-124=127188+166=354399-(345-308)=362404-(23+109)=272873-(90+578)=205855×3=2565283×(196-190)=169880+790+302=1172742-120×4=262329-26×5=199585+121+144=85058+287-257=88416-(498-360)=278562+349-739=172392+(872-144)=1120298×(128-121)=208670+426×2=922223+49-166=106569-63×4=317423+119+305=847977-52+324=1249262+156=41881×6+485=971326×3-302=676260+510+62=832206×3+579=119792+353-104=341672+842-543=971144×(303-297)=864878+(581-397)=1062407-306-37=64386-362+303=327166+327-113=38096+396-381=111698-(414+249)=35432-75-200=157195×(454-451)=585405-18-363=24271×7=1897479-65-224=190266-36+277=507727+289-929=87999+816-582=123355+(160-152)=63332-138+