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105+235=130-11×5=171+312-90=422-39×3=279+(470-170)=136+706+101=361+522+860=428-(263-143)=398-350+101=216×3-343=903-(644+59)=60-54+283=426+222+104=663-(134+484)=384-304=123×5-462=829×8-976=306-59×2=349-(329-130)=284+88×2=540-(24+411)=70+391-38=383+125+448=974-126-99=400-44×2=114+(227-48)=142-31+354=420+434=337+58+341=3/4-1/4=457-(53-15)=479-65=48+(169-102)=942-(92+484)=298+69-20=500+889-974=984+(591-467)=861-177×4=843+599+68=284-172+345=157+353+242=777-(566+199)=85×6=105×(428-423)=806-(78+482)=200+(672-314)=437-70-247=349-150×2=821-70×2=345-82-186=489-(10+255)=80+(427-210)=498-415-66=148×5-148=872×4-86=592×(910-905)=541×(339-331)=123+37=796-(424-358)=153×(139-133)=672×4=44×6=196×2=130×6-324=105×2+638=289×2-244=371×2-238=396-59=41×(140-132)=591+182=474-75×2=221×(647-643)=19×(316-310)=5/9+4/9=816-116×3=47×(398-395)=727+(498-91)=800-(890-97)=316×3-647=132+(84-16)=335-34×8=874+15×6=506+847+726=427-54-235=714-108=356+52×3=806+330+243=48+(342-94)=477-92-284=31×(422-418)=829+519+304=455-52-109=663+634+828=76×4+44=279-(292-98)=31+355+37=191-15×2=337-246=186+150-84=303+321=375-92-121=67×7=170×5-243=659-563=437-(489-361)=237+188-402=326×7-498=792+416-657=145+138-276=50×3+47=646-(573+72)=277-60×2=292×(544-541)=438-(59+364)=655-404-16=709×(148-144)=442-169-171=685-533=606×8=437×5=6/8+2/8=392×6=24+119-85=460×3-271=88×(405-402)=393+(701-438)=340+154=266+210×2=98×2=283-215-54=343-107-100=460-146×3=260+93=386+513=486-(53+129)=206×4-271=159+509=171×(312-305)=380-(309-289)=731+47×6=488-389=734+940-773=115+(426-250)=671-471=4/7+2/7=406×4-521=89+362-35=446-407=626+(360-162)=494-476+438=989-(581-296)=800-432-207=212+415=407+(450-179)=218+241+201=752-367=204×2+34=205-37×5=85+83=13×4+788=221-142+406=40×3+248=21×4=278+141×4=588-26×3=26+281-244=431×4=190×4+61=602-(883-482)=352-103+312=610+486-966=406+(345-14)=368+932-181=292-(18+170)=383-73×2=829-(783-700)=912-(725-378)=380+433=594-(949-371)=85+356-420=432+(281-132)=65-(12+14)=820-(102+529)=488×(510-504)=617-461=19×2+907=369-52=53+(837-121)=601+536=298×6-537=438-(151+271)=408×2=331+327-309=296×2-69=398+292×2=438-353=71×5-276=997-318=982-(413-260)=405×(391-384)=61+520+222=153×2+433=916+159×5=292×8=538×8-173=910×(214-208)=370-167+162=880-59×2=318-71=353-281=753-171=186×(415-407)=489-340-31=77×(326-318)=275×(386-383)=197-99+180=115×8-475=493+91×4=443-(54+30)=320-55×3=325+638+643=156×6=386+72=593+159+22=493-151×2=312-158=173-19×8=250+(287-221)=703-(111+349)=617+315+242=410-329+37=985-462×2=307-76-177=746-(861-707)=1/7+3/7=447×5-723=649+760=298-59×3=393-47-153=162+309=712-237-392=210-58×2=816×(336-330)=880+481=375×2-688=889-(246+163)=926-164+675=381-303+235=797×(239-236)=110×(27-24)=403×5-107=937×9=647+227-429=273+467=33×2=701-277=876-273+997=345-(35+247)=311×2=136+(275-145)=616-(854-371)=520×4-186=666+284+633=377-(342+23)=566-31-233=519-477+781=113×(288-281)=436-94=467-178-82=119×2=180×(934-930)=411-(490-173)=879+403-53=91×(181-176)=528-(177+307)=160-101+105=50×5-204=235+128=47+89+412=247-91-10=425-143-69=401-14×5=274+73+526=638-(45+305)=645-(80+234)=709+63×3=192×(431-427)=299-(136+134)=387-30-234=407-384+306=272+978=226+256=453-72-269=39×4=210+466+55=647-232+361=234-17-161=186+241=960-(546+162)=169-11=100×5+24=80+121+326=325+(781-545)=346×7=488-(50+428)=781-172-143=888+(720-537)=40+170=59×(255-249)=695-(652-102)=717+135×6=998-469×2=764-525+62=404-(389-196)=124×5-262=67×7+271=331-(156-30)=995-283=407×(925-916)=492-470=863-(110-14)=820-(420+57)=217+173-88=413-(52+198)=118-101+473=823-521-169=942-914+220=996-520=133-47+175=347+(697-464)=452-(482-42)=4/6-1/6=190+(198-88)=321+63-343=238-(367-363)=32×(80-73)=936+937-538=538-(332+167)=591+460+480=66×5=444×5-987=379-65=873-(655-230)=320-155=5/9+2/9=496+38×2=997×2=865+610+290=393-(177+169)=4/8+2/8=636+850-419=419-197+68=493-279=131×6-735=532+(859-363)=481-367=238+(410-97)=755-17×5=768+129=151-21×2=417+165+207=603+842-110=126+480-87=324×5=383+599-39=816+423+188=457×2-193=459×2-546=539+19+15=445-86×5=242×3=334-166×2=246-75-13=78×6-382=39×9-214=451+(336-244)=470+54+270=241×2=865+589-585=404×8=82×7=131+336=149+78=287+54=3/5-1/5=289-252+47=287-200=151×(196-192)=393-11-170=841-183×4=574-64×4=500-(414+51)=278-(496-335)=277-251=29×3+307=135+59=463-(344+66)=78-(384-329)=160+76×9=606-236-237=110×(331-323)=665-(39+264)=911-762+157=398+(820-629)=175×2+495=310×2+156=87+113=918×9=187+146=297-(495-487)=205+(475-96)=804×4=269+194-398=769-11=356+976=98-14×5=269-(86-28)=458-(258+72)=11+(428-181)=903+250+523=285+736-132=730+(305-26)=571×(889-880)=105+727+46=284-18=374-52=322-66-137=431-38×3=823×6-602=122+54=473+18+218=998-595=589×3-38=392×2+364=288-173=371-16×9=434+(362-272)=758×(828-822)=32+86+536=96×2+200=484-236×2=860-(637+28)=466+(773-671)=634+894+453=866×5-770=462-(261+166)=52+(840-240)=296+10-189=271×(312-306)=392-(45-39)=389-61×6=480-(313-294)=934×6=110×9-719=47+383-256=349+47-160=473-41×2=274+(138-35)=508+363=191-149+332=130×5-216=333-220+268=311-184+256=737×8=514-137-13=655-440=748×(625-622)=314-(242+19)=123×(56-49)=999-44×9=3/7-1/7=492-60×7=430-(418-318)=2/5-1/5=547×(838-834)=856-323=394-(202+21)=594-75×6=821-610-136=573-160+701=676-449-12=140×3=202-158=688-(534-427)=378-96×2=533-147+275=877×5-349=357-217+129=637-237-300=819×(154-147)=430-(684-511)=136×2+780=465+194-60=181+252-302=959-594+277=68×(405-396)=487-181-85=408-(299-76)=219-28×7=109+358=251+124=51×3=55+(789-451)=479+485+461=639-(801-727)=841+269+870=4/8-3/8=336-235-59=414+(190-16)=498-307-100=326×8-87=398+96=64×5-244=347-272-19=100+244=320-248-69=421-(253+75)=338-(430-367)=70+83=125×3+101=582-(394+54)=190+362=390-(836-630)=60×3+917=388+344-173=684-466=241+640+92=984-545=573+411-840=452×5-585=773-739=37×6+34=508-383+202=756+234+901=664-128×5=300-(243+57)=833+(199-105)=402-251-17=158×9=146+99=311+42-171=286×3=531-495=281×2=240-111+335=830-211=410-162=4/8+3/8=537-42-48=34+102+334=457-88×2=667+199×4=42-(114-79)=445-162+94=124+585=936-(472+151)=477-(125+318)=223-27×6=627-283-49=112×(250-247)=411+121×2=636×8=365-189=262-(91+148)=79+(162-49)=411-(129-72)=410-(145+29)=200×2+219=362+(244-199)=734-633+985=145+179=86×8-494=442+198×4=619+52×6=113×(242-236)=173+861+232=352-(515-177)=560+252+40=826+227+955=167-143+73=93×5=100×2-195=967-(518-181)=946-484-459=420+(582-184)=843+(929-486)=415×8-287=452-(319-14)=174+(444-284)=310-76=360+660-715=347-65-11=110×4-217=62×3=799-763+517=81×5=642-427+429=18+368-375=479-(537-119)=172-166+348=290-230-11=69×(467-462)=769-(867-570)=333×(484-481)=307×3-640=827×8-894=447+(379-334)=138+159-123=782+646=199×5-970=194×4-346=146+13×7=997+163-541=907-488+922=696-86×8=37+364-207=112×3-326=687-15+142=302+(500-483)=153+341+415=173+214=450+289+64=3/6-2/6=187-(288-231)=152+299=891-(106+295)=324+(254-106)=658+140+490=272-261+81=853-455+220=523-88+148=127+824-951=964-314-105=444-173+104=498+544+885=882-174-443=51+86×3=111+296-386=494+370+716=741+221-30=114×8-109=436-377=54×6+731=25+404+175=6/8-1/8=346+64×9=5/10+2/10=227×4=423-183=672-126×3=311-211+364=425×5-824=226×(476-473)=197+56+95=211+149=2/6-1/6=93×5+195=385-(169+196)=839-635+318=128+328=487-(190-55)=171+533=101+373=674-268×2=318-(320-150)=80×3+13=859-(271+322)=113×(395-391)=902+(437-436)=395+384=224+185×3=74×(82-75)=378-50×2=81×8=359-(204+56)=34×2=226×(514-507)=779-109-66=99×4=103+174×2=363-86=181×3-291=439-(732-529)=221-10-163=955-358-549=985-(413+83)=47×2+294=867-520-243=654×8-926=677-(96+444)=115×6-51=439-112×2=247+395+895=119×5=310+447-582=222+98-117=704+160+336=924×(163-159)=440-298+255=483-388+306=159+379+621=271-28×4=144×2=126+323-77=521×(855-849)=555+731-597=409-(239-181)=2/8+3/8=94+321-395=321-25×8=1/5+3/5=384-67×4=606×(928-919)=210+471-564=457×5-715=160+(905-459)=776-(710-653)=126×(452-446)=34+108×3=605×(936-933)=434-70=188-94+364=236+115-85=519+52+130=880+(566-351)=397-34×6=286-130+25=897-598-134=388+(962-631)=130+325=309+190=477×2=496-(347-42)=938+(259-163)=302+177=356-297+61=112×(99-94)=492+(932-567)=353×4=835-101=753×9=438+894+776=755-432=54×(193-185)=23×(450-447)=166×6=290+182=848×3-383=870-366=3/6+2/6=386-(792-747)=5/7-1/7=835-(968-794)=141×4-22=263+(510-501)=582-133×3=260-124=222+595-172=253-170-18=489-(95+306)=407+(425-392)=121×(204-200)=873-(12+672)=115×8+740=271-(958-780)=901+(354-36)=919+443-491=97+50×3=519-305+712=676+(288-193)=268-155-35=504+412+62=78+57×2=485-(122+318)=91×(94-86)=321×3=781-(224+489)=186-153+296=498-159=241-46-72=144+582=38+830+818=416-215+909=526-41-95=693-511-26=48×7-157=565+287-651=322×2-641=408-(109+130)=411+(191-180)=906-(489+281)=330×7=144-(260-247)=910-195+204=333+45-120=592×3=991-842+204=2/3-1/3=125×3=55×4=324+47-141=292-244-35=61+(242-151)=355-88=349-(242+84)=619+(639-530)=245+114=159×(66-63)=175-27+35=697+272+154=217+91=357×2+186=410-149+942=420+38+398=86×4=271+158-98=511+421-907=161×6+291=283+738=187-(256-182)=581+104=377+464-456=632-(729-222)=248+589=922-(264+57)=226+(199-180)=752-448-129=437+176×4=123×5+35=151+65+403=923-13×3=460×(305-298)=86×3+726=198×4=315-61×5=445×2-61=837×7=727-187-387=19×5=886-58×4=74×(404-396)=854-(614-602)=914-515+638=232+(232-210)=151+59×3=685-414=252-(493-285)=278-(281-165)=5/7+2/7=372-22=395-170=385-134×2=730+271×2=353-(164+94)=3/6-1/6=388+236+376=429-(134+288)=214+149×2=344+(384-48)=183+156-257=871×3=954-91×2=66+11×5=951+296+395=参考答案105+235=340130-11×5=75171+312-90=393422-39×3=305279+(470-170)=579136+706+101=943361+522+860=1743428-(263-143)=308398-350+101=149216×3-343=305903-(644+59)=20060-54+283=289426+222+104=752663-(134+484)=45384-304=80123×5-462=153829×8-976=5656306-59×2=188349-(329-130)=150284+88×2=460540-(24+411)=10570+391-38=423383+125+448=956974-126-99=749400-44×2=312114+(227-48)=293142-31+354=465420+434=854337+58+341=7363/4-1/4=2/4457-(53-15)=419479-65=41448+(169-102)=115942-(92+484)=366298+69-20=347500+889-974=415984+(591-467)=1108861-177×4=153843+599+68=1510284-172+345=457157+353+242=752777-(566+199)=1285×6=510105×(428-423)=525806-(78+482)=246200+(672-314)=558437-70-247=120349-150×2=49821-70×2=681345-82-186=77489-(10+255)=22480+(427-210)=297498-415-66=17148×5-148=592872×4-86=3402592×(910-905)=2960541×(339-331)=4328123+37=160796-(424-358)=730153×(139-133)=918672×4=268844×6=264196×2=392130×6-324=456105×2+638=848289×2-244=334371×2-238=504396-59=33741×(140-132)=328591+182=773474-75×2=324221×(647-643)=88419×(316-310)=1145/9+4/9=1816-116×3=46847×(398-395)=141727+(498-91)=1134800-(890-97)=7316×3-647=301132+(84-16)=200335-34×8=63874+15×6=964506+847+726=2079427-54-235=138714-108=606356+52×3=512806+330+243=137948+(342-94)=296477-92-284=10131×(422-418)=124829+519+304=1652455-52-109=294663+634+828=212576×4+44=348279-(292-98)=8531+355+37=423191-15×2=161337-246=91186+150-84=252303+321=624375-92-121=16267×7=469170×5-243=607659-563=96437-(489-361)=309237+188-402=23326×7-498=1784792+416-657=551145+138-276=750×3+47=197646-(573+72)=1277-60×2=157292×(544-541)=876438-(59+364)=15655-404-16=235709×(148-144)=2836442-169-171=102685-533=152606×8=4848437×5=21856/8+2/8=1392×6=235224+119-85=58460×3-271=110988×(405-402)=264393+(701-438)=656340+154=494266+210×2=68698×2=196283-215-54=14343-107-100=136460-146×3=22260+93=353386+513=899486-(53+129)=304206×4-271=553159+509=668171×(312-305)=1197380-(309-289)=360731+47×6=1013488-389=99734+940-773=901115+(426-250)=291671-471=2004/7+2/7=6/7406×4-521=110389+362-35=416446-407=39626+(360-162)=824494-476+438=456989-(581-296)=704800-432-207=161212+415=627407+(450-179)=678218+241+201=660752-367=385204×2+34=442205-37×5=2085+83=16813×4+788=840221-142+406=48540×3+248=36821×4=84278+141×4=842588-26×3=51026+281-244=63431×4=1724190×4+61=821602-(883-482)=201352-103+312=561610+486-966=130406+(345-14)=737368+932-181=1119292-(18+170)=104383-73×2=237829-(783-700)=746912-(725-378)=565380+433=813594-(949-371)=1685+356-420=21432+(281-132)=58165-(12+14)=39820-(102+529)=189488×(510-504)=2928617-461=15619×2+907=945369-52=31753+(837-121)=769601+536=1137298×6-537=1251438-(151+271)=16408×2=816331+327-309=349296×2-69=523398+292×2=982438-353=8571×5-276=79997-318=679982-(413-260)=829405×(391-384)=283561+520+222=803153×2+433=739916+159×5=1711292×8=2336538×8-173=4131910×(214-208)=5460370-167+162=365880-59×2=762318-71=247353-281=72753-171=582186×(415-407)=1488489-340-31=11877×(326-318)=616275×(386-383)=825197-99+180=278115×8-475=445493+91×4=857443-(54+30)=359320-55×3=155325+638+643=1606156×6=936386+72=458593+159+22=774493-151×2=191312-158=154173-19×8=21250+(287-221)=316703-(111+349)=243617+315+242=1174410-329+37=118985-462×2=61307-76-177=54746-(861-707)=5921/7+3/7=4/7447×5-723=1512649+760=1409298-59×3=121393-47-153=193162+309=471712-237-392=83210-58×2=94816×(336-330)=4896880+481=1361375×2-688=62889-(246+163)=480926-164+675=1437381-303+235=313797×(239-236)=2391110×(27-24)=330403×5-107=1908937×9=8433647+227-429=445273+467=74033×2=66701-277=424876-273+997=1600345-(35+247)=63311×2=622136+(275-145)=266616-(854-371)=133520×4-186=1894666+284+633=1583377-(342+23)=12566-31-233=302519-477+781=823113×(288-281)=791436-94=342467-178-82=207119×2=238180×(934-930)=720411-(490-173)=94879+403-53=122991×(181-176)=455528-(177+307)=44160-101+105=16450×5-204=46235+128=36347+89+412=548247-91-10=146425-143-69=213401-14×5=331274+73+526=873638-(45+305)=288645-(80+234)=331709+63×3=898192×(431-427)=768299-(136+134)=29387-30-234=123407-384+306=329272+978=1250226+256=482453-72-269=11239×4=156210+466+55=731647-232+361=776234-17-161=56186+241=427960-(546+162)=252169-11=158100×5+24=52480+121+326=527325+(781-545)=561346×7=2422488-(50+428)=10781-172-143=466888+(720-537)=107140+170=21059×(255-249)=354695-(652-102)=145717+135×6=1527998-469×2=60764-525+62=301404-(389-196)=211124×5-262=35867×7+271=740331-(156-30)=205995-283=712407×(925-916)=3663492-470=22863-(110-14)=767820-(420+57)=343217+173-88=302413-(52+198)=163118-101+473=490823-521-169=133942-914+220=248996-520=476133-47+175=261347+(697-464)=580452-(482-42)=124/6-1/6=3/6190+(198-88)=300321+63-343=41238-(367-363)=23432×(80-73)=224936+937-538=1335538-(332+167)=39591+460+480=153166×5=330444×5-987=1233379-65=314873-(655-230)=448320-155=1655/9+2/9=7/9496+38×2=572997×2=1994865+610+290=1765393-(177+169)=474/8+2/8=6/8636+850-419=1067419-197+68=290493-279=214131×6-735=51532+(859-363)=1028481-367=114238+(410-97)=551755-17×5=670768+129=897151-21×2=109417+165+207=789603+842-110=1335126+480-87=519324×5=1620383+599-39=943816+423+188=1427457×2-193=721459×2-546=372539+19+15=573445-86×5=15242×3=726334-166×2=2246-75-13=15878×6-382=8639×9-214=137451+(336-244)=543470+54+270=794241×2=482865+589-585=869404×8=323282×7=574131+336=467149+78=227287+54=3413/5-1/5=2/5289-252+47=84287-200=87151×(196-192)=604393-11-170=212841-183×4=109574-64×4=318500-(414+51)=35278-(496-335)=117277-251=2629×3+307=394135+59=194463-(344+66)=5378-(384-329)=23160+76×9=844606-236-237=133110×(331-323)=880665-(39+264)=362911-762+157=306398+(820-629)=589175×2+495=845310×2+156=77687+113=200918×9=8262187+146=333297-(495-487)=289205+(475-96)=584804×4=3216269+194-398=65769-11=758356+976=133298-14×5=28269-(86-28)=211458-(258+72)=12811+(428-181)=258903+250+523=1676285+736-132=889730+(305-26)=1009571×(889-880)=5139105+727+46=878284-18=266374-52=322322-66-137=119431-38×3=317823×6-602=4336122+54=176473+18+218=709998-595=403589×3-38=1729392×2+364=1148288-173=115371-16×9=227434+(362-272)=524758×(828-822)=454832+86+536=65496×2+200=392484-236×2=12860-(637+28)=195466+(773-671)=568634+894+453=1981866×5-770=3560462-(261+166)=3552+(840-240)=652296+10-189=117271×(312-306)=1626392-(45-39)=386389-61×6=23480-(313-294)=461934×6=5604110×9-719=27147+383-256=174349+47-160=236473-41×2=391274+(138-35)=377508+363=871191-149+332=374130×5-216=434333-220+268=381311-184+256=383737×8=5896514-137-13=364655-440=215748×(625-622)=2244314-(242+19)=53123×(56-49)=861999-44×9=6033/7-1/7=2/7492-60×7=72430-(418-318)=3302/5-1/5=1/5547×(838-834)=2188856-323=533394-(202+21)=171594-75×6=144821-610-136=75573-160+701=1114676-449-12=215140×3=420202-158=44688-(534-427)=581378-96×2=186533-147+275=661877×5-349=4036357-217+129=269637-237-300=100819×(154-147)=5733430-(684-511)=257136×2+780=1052465+194-60=599181+252-302=131959-594+277=64268×(405-396)=612487-181-85=221408-(299-76)=185219-28×7=23109+358=467251+124=37551×3=15355+(789-451)=393479+485+461=1425639-(801-727)=565841+269+870=19804/8-3/8=1/8336-235-59=42414+(190-16)=588498-307-100=91326×8-87=2521398+96=49464×5-244=76347-272-19=56100+244=344320-248-69=3421-(253+75)=93338-(430-367)=27570+83=153125×3+101=476582-(394+54)=134190+362=552390-(836-630)=18460×3+917=1097388+344-173=559684-466=218241+640+92=973984-545=439573+411-840=144452×5-585=1675773-739=3437×6+34=256508-383+202=327756+234+901=1891664-128×5=24300-(243+57)=0833+(199-105)=927402-251-17=134158×9=1422146+99=245311+42-171=182286×3=858531-495=36281×2=562240-111+335=464830-211=619410-162=2484/8+3/8=7/8537-42-48=44734+102+334=470457-88×2=281667+199×4=146342-(114-79)=7445-162+94=377124+585=709936-(472+151)=313477-(125+318)=34223-27×6=61627-283-49=295112×(250-247)=336411+121×2=653636×8=5088365-189=176262-(91+148)=2379+(162-49)=192411-(129-72)=354410-(145+29)=236200×2+219=619362+(244-199)=407734-633+985=1086145+179=32486×8-494=194442+198×4=1234619+52×6=931113×(242-236)=678173+861+232=1266352-(515-177)=14560+252+40=852826+227+955=2008167-143+73=9793×5=465100×2-195=5967-(518-181)=630946-484-459=3420+(582-184)=818843+(929-486)=1286415×8-287=3033452-(319-14)=147174+(444-284)=334310-76=234360+660-715=305347-65-11=271110×4-217=22362×3=186799-763+517=55381×5=405642-427+429=64418+368-375=11479-(537-119)=61172-166+348=354290-230-11=4969×(467-462)=345769-(867-570)=472333×(484-481)=999307×3-640=281827×8-894=5722447+(379-334)=492138+159-123=174782+646=1428199×5-970=25194×4-346=430146+13×7=237997+163-541=619907-488+922=1341696-86×8=837+364-207=194112×3-326=10687-15+142=814302+(500-483)=319153+341+415=909173+214=387450+289+64=8033/6-2/6=1/6187-(288-231)=130152+299=451891-(106+295)=490324+(254-106)=472658+140+490=1288272-261+81=92853-455+220=618523-88+148=583127+824-951=0964-314-105=545444-173+104=375498+544+885=1927882-174-443=26551+86×3=309111+296-386=21494+370+716=1580741+221-30=932114×8-109=803436-377=5954×6+731=105525+404+175=6046/8-1/8=5/8346+64×9=9225/10+2/10=7/10227×4=908423-183=240672-126×3=294311-211+364=464425×5-824=1301226×(476-473)=678197+56+95=348211+149=3602/6-1/6=1/693×5+195=660385-(169+196)=20839-635+318=522128+328=456487-(190-55)=352171+533=704101+373=474674-268×2=138318-(320-150)=14880×3+13=253859-(271+322)=266113×(395-391)=452902+(437-436)=903395+384=779224+185×3=77974×(82-75)=518378-50×2=27881×8=648359-(204+56)=9934×2=68226×(514-507)=1582779-109-66=60499×4=396103+174×2=451363-86=277181×3-291=252439-(732-529)=236221-10-163=48955-358-549=48985-(413+83)=48947×2+294=388867-520-243=104654×8-926=4306677-(96+444)=137115×6-51=639439-112×2=215247+395+895=1537119×5=595310+447-582=175222+98-117=203704+160+336=1200924×(163-159)=3696440-298+255=397483-388+306=401159+379+621=1159271-28×4=159144×2=288126+323-77=372521×(855-849)=3126555+731-597=689409-(239-181)=3512/8+3/8=5/894+321-395=20321-25×8=1211/5+3/5=