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760×2-635=984-125-278=853+908+819=822-562+189=336+475=249×4+829=42-(43-28)=715-310×2=264+520+80=548×(461-452)=955+(76-52)=684+352-993=903+310+205=483+(428-381)=159+318-12=457-386=94+296=886×(967-959)=201+(189-178)=373-(136+74)=370-(46+130)=40+156×2=74+630+24=256-63+30=592+(910-392)=865-373-242=452-65+349=854+(941-491)=168+822+712=76+416=509+352-747=862-118-320=608-36×9=271-(415-380)=848+(830-786)=948-(772+43)=194-28×3=541-(823-346)=219+332+60=267-228=248-(440-338)=221+773-927=503+196=930-(410+479)=165-65+40=414-19×8=313+12×6=147+323×2=292-(143+139)=188×3-396=28+466-296=198+329+705=279-155+679=285-(177+29)=701+(629-143)=75-17+185=830-317-384=858×(759-756)=349+693-296=110-54=210×6-350=395-50×7=624+585+79=497-260=34+691+843=231-142=998-94-808=290+255=3/8-1/8=395+(495-257)=515+478+580=642+22+302=729×9-141=99×7+68=306-154-104=718+78+15=340-313=152+130=273×2=112×2=336+155-151=418+(435-124)=527-(863-615)=721-200+794=127×5-288=401+253=303-20-122=467×2-598=384-(190+149)=819-170+839=349+667-289=789-37-265=273-(128-62)=862+637=459+620+707=451-176+148=190×(157-153)=139-136+49=29+355-88=130+87×7=481+501=969×8=198+683+47=431-368+209=68+(482-207)=289×3+114=270-26×5=452-20×6=710-306=805+143-873=83×6-229=343×(132-125)=937+217-660=494+780+502=110+66=812-330-235=473-85×5=652-392+614=816-535+357=812-23×6=426-191-13=82×(368-362)=149-70+385=381-72×3=494+(235-51)=856-346-446=883+74+337=522×4-906=704×(992-987)=719×6-652=365-229=649+(636-153)=1/7+4/7=216-168+428=173-(649-525)=868×8=388-(92-59)=81+296=905×3-171=219+697-813=933-(353+147)=87+326×2=216+273=998-189-59=501+308+574=226×4-645=61×4+10=247-(308-217)=575×4=388×2-294=353-57+730=144×5+923=413-237+20=719-(100+457)=71×7=991+(909-138)=411+440-680=4/9-2/9=27+379-376=80×5+554=144×6+852=164×4-501=264+(849-221)=656×7=60+103-40=866-(129+269)=269×8-725=48+175×5=430-296-115=130×(37-31)=315-59×3=332+518+70=329-(256-91)=948-425=145-65×2=216+485=163×(179-173)=301+128+48=493-(254-58)=959+868=659-179=870-532-320=56+207+518=168-71-88=522-385=307×3-830=181+277=481-(232+11)=337+971=308×(178-175)=309-251+51=963+695+433=472-284=380×5=571×(362-356)=173×(183-180)=496-(238+131)=33+337-47=191+97=13×(155-146)=523+546-714=459+213×4=345+282+50=891-(402+142)=112×(496-489)=157-(373-268)=883×(370-362)=476-(474-143)=41×4+377=997+(483-213)=3/6-2/6=168×3-473=185×(57-49)=341-80-15=35×6-41=259+(186-10)=774-(146+30)=830-(65+132)=979-(682+192)=283+21×8=332-30×2=909+168×4=46×3+489=1/5+2/5=111×(412-405)=431-(301+113)=609-502+333=208-26-142=355-97+401=776×(223-214)=217+169-196=3/8+2/8=626-180=756-108×2=453×2=364-(248+14)=159×2=313×2-391=398-360+217=592-70×5=453-270+423=130+234×4=491-217-138=159-54+268=470-(35+415)=414-121-21=200-(169-168)=428-102-204=644-(964-641)=57×6-301=475-92-364=398+(231-56)=202+53-59=236-(265-60)=464-102=285×(667-661)=939-192×3=85-(377-315)=305-148×2=989+(777-408)=46+164=5/10+4/10=470+402=784-634-78=51×3=222-11×9=1/4+3/4=705×9-973=277+234×2=871×(817-810)=204×3-171=264-33-132=171-(314-169)=664-(651-419)=688+983-439=614-(333-24)=517×2-703=173+97=4/7-2/7=62×4=98+666+146=317+79=284+(492-158)=812-(781-704)=189-(399-333)=220+90=498-(473-30)=934-345+961=6/9+2/9=819-(431+96)=60×5-44=187-(467-377)=499-145-332=806-731+407=708×2-10=643×(812-808)=431-(277+100)=434-414=579-58×9=880×(48-42)=163×4-317=197×3=472+13+228=519-(19+314)=333×2=846+(675-33)=198+(222-82)=398×2-107=385-(46+234)=205×4=331-164=481-35×4=388-63-268=3/6-1/6=34×7+182=758-342-198=215+227-67=415+73=197+55×8=303+583+45=103×(415-411)=206-168=478-92×5=381×2-466=98+353-240=255+(350-123)=854-(307+320)=457-(103+286)=341-78-257=904-279=524-(13+189)=252+426+306=349×4=609×3-975=596-(309+269)=221+19×6=505-(757-362)=691+567+401=449-196+540=488-(219+108)=840-(43+338)=501+188+167=205+334×2=116+282-104=211+773-706=456-215=392-(371+17)=432-37×6=236+41-64=262-(289-279)=467+(294-136)=5/7-2/7=789×7=338+305=679-(715-363)=482+383=151+279=727-21+244=500×(151-146)=155×(238-233)=72×4+356=262-24=423+71=94+498×2=916-(906-29)=191×2=432×(53-49)=632×8=154×3=120+227=903-(82+328)=694+(757-28)=372×6-906=216+394+305=295×3+295=657-389-73=432-414+306=954+126+746=179×(294-286)=509×4=861+607-128=774-174=619+658+632=299-(300-232)=641×8=323-(48+165)=328+(734-562)=48×4+327=188×2-303=754-190×3=617+27+919=779-187×2=3/7-2/7=860-(396+230)=476-81-331=440+107+94=228×4-777=563×(597-590)=805-70×7=797-93-93=301+272=59×2+540=391-292+178=123×5-545=922+(811-669)=175×2+297=26×4+872=134-11×2=818×(927-919)=521+621+425=496×(406-400)=480-159×2=926-30×7=193+(411-147)=422-106×3=247-174+171=872-(167+29)=366-263=103+238+213=405-321+201=671+115+206=453-268-66=631-145+292=337-69×3=589-432=144-14×6=732-470=968+448=234-193+120=163+(421-301)=522+80+97=93×7=816-10=957-154-72=616+591=814×2=501×(815-811)=102-(446-413)=328×9=125×(70-62)=155×(410-407)=737-(276+265)=235+(95-68)=258-(798-625)=618-(503+42)=62+(244-229)=201×4=708-10×6=785+(567-144)=66+54+785=118+16+757=467-261=388-372+137=738-(852-279)=375×8-874=443-(223+45)=322-85-50=903-519+523=370-52×4=425×5=47×2=389+279=363-350+102=171×2=208+82=637-16=38×7=4/7-1/7=73+394+23=222+253=352×2-209=459-438+354=788-(31+748)=49×4=433-132=102×(377-371)=264-97=64×(373-367)=75-22=775×(850-842)=311×2=207+148=354+73-165=402-145=583-107-144=493+(71-59)=267-112-121=115×5-87=406-199×2=259-51-15=187+(315-178)=131+620=414-338+20=131×3=479-12×2=412-237+697=135×(394-387)=620+129×6=139×3=771-730=817+(583-503)=341-140×2=513×3-256=113×4-117=292×3-657=995-235×4=469+164×5=780×6-81=184-164+462=724+188=505×3=352+131-389=312-245=490-29-338=356-133=77+797+84=424-18×8=117-38=317-304=339-180+149=235+(394-55)=458-(78+368)=321+306+905=401-301+265=176×4+68=103+70=245+(342-300)=191+253-191=233-(742-564)=467-61=310+82=380-351=941×(779-772)=496+(664-130)=208×4+969=95×(94-87)=925+(917-402)=646-257=74×5-263=190-(322-139)=5/8+3/8=160+82-153=90+296+413=268-(251-94)=92+(239-183)=273×3=274+116=80+78×9=375+69×2=637×6=452-90-169=411+588+765=34×4+167=48+145+379=827-140×2=340+313-468=65×6-201=866-11-643=281+11×7=501×8-984=154+208-63=232-206+336=284-50×2=246-187+248=332+69-394=398-(55+85)=982-611-66=602+(542-418)=83+197×5=305-89+15=72×(283-274)=285×2-108=290+210-360=5/9-2/9=236+106=254+(655-111)=258×(172-169)=15×(466-461)=930×3=467-177=624+234=57-47=4/8+3/8=373-(228+114)=118+346-330=955-(669-140)=224×2-126=622-568-24=303-200=7/9+2/9=34×3+425=95×(450-441)=317×2+331=134-(252-205)=989+560=339×8-180=394+76=665-493=213+49=853-396×2=471-(76+297)=466-78×3=321-(51+188)=440-410+40=728-371+582=250-166=956-66×8=5/8-2/8=177+163×3=752+(924-230)=3/9+4/9=353×6=370-(90+168)=928-(441-372)=627×3=698-170×2=342-213+135=870+359-787=149+84×8=306+358=847+516-608=413-124-28=422-30×4=80×8=235×3+615=267+271+331=243+(210-36)=546×3-997=375+93=222+(464-113)=448-(473-392)=340-62×2=650×2-600=676-40=190-(64+71)=572-465+613=155×3-405=444-(66+279)=144+166=162×3+220=610+82×8=979-765+282=414-43=81×6=512+249-411=109×2=20×6=2/7+4/7=316+384-386=2/4-1/4=311-225+903=714×3-629=633×6=812×5-267=660+247=96+136=118×(455-451)=104+988+337=419-(73+74)=147+(366-233)=817-(806-263)=12+184-50=119+370+412=685-52×3=10×4=977+184-863=157+313-211=72×(340-335)=83×2=135-(242-238)=525+199=224×4-407=671+133×5=852-(408+150)=148×6=432-155-162=572×(866-860)=719+(233-111)=381-(468-462)=344-187+29=493-(15+454)=426+(437-31)=69+181-248=779-520-57=958-57-146=793+361-467=277+600-452=166-(496-408)=331+937+670=276-87-186=222+276+456=746-623+178=417-334-11=108+362-25=893-188+338=487+798+663=332+(204-79)=82+89=414+73×7=35×8+443=102×5=911-(450+320)=455-(103-101)=318-39=322-(65+101)=780-(509-345)=209+157-67=402-(117+168)=92+26=456-380=321+95×3=364-302=65+753+86=375-37×2=117×(189-184)=366×2+154=406-(114+163)=276-154+334=67×6=442-40=214+26+86=256×(141-138)=191+695+564=496×8-700=801×6-136=290×(784-777)=455-15×5=780+293-973=650-(516-125)=566+631-58=65+(316-81)=118×7=354-141-152=186+81-162=48-31=608-136×2=1/8+4/8=66×6-176=58+151-117=431-297=174+(500-91)=899-298×2=95×2+486=719-(308-199)=762-57-690=287-(138+84)=998-258=64+190-13=318-124-124=72×(819-811)=36×(434-425)=745+785-52=892-826=103×4-315=626×9-343=242×3+58=127+(418-395)=941-238=185-(131-34)=189×(49-42)=334+137=963-(617-73)=305+(334-194)=585-364=107+417-232=748×7=478-(61+84)=745-(675+42)=499+(730-123)=17×(191-185)=960-313×3=482×2-275=428×8=29+465×2=182+102×9=405-257+499=844+(627-34)=75×(997-991)=250×7-336=478×9-635=864-306-139=826×9-560=159+(361-208)=199×3=792×(547-544)=861-420-54=471+11×6=350-32×4=528×3=250-30×6=379-125=980+407+896=425-61×3=357-(135-52)=442-256-112=19×(273-268)=2/5-1/5=484-27×9=473-(49-47)=324-(383-206)=778-(678-279)=322+168+25=684+464=312×3+599=163+29=798-(678+60)=333+302-318=189-121+196=334+154=74×9+219=712+395-546=33-(213-199)=455-251=16×2=305-14-281=288+610-309=487-64-74=858-62×2=774-404-38=935-(691+222)=111×2=507-(735-496)=689-(768-548)=455-48×4=346×9=454-397-24=432-214-107=282-(198-47)=461-19-282=326+119=30+(428-346)=299+(554-372)=65+417-102=157+703-312=553-335=978-819+581=276+(503-336)=26×(232-225)=640+391=712-(832-424)=38×9+282=144+(459-332)=118+302-384=658-547+476=228×(356-353)=581-376+980=115+158=678-(310+200)=102×(324-321)=852×7=742×(894-886)=194+(386-138)=671-(677-431)=647-(944-476)=496-(64+223)=373-33×4=74+370+363=151+168+661=815-108×5=268+109+292=499-101-305=52×5=365+195+940=263-222=参考答案760×2-635=885984-125-278=581853+908+819=2580822-562+189=449336+475=811249×4+829=182542-(43-28)=27715-310×2=95264+520+80=864548×(461-452)=4932955+(76-52)=979684+352-993=43903+310+205=1418483+(428-381)=530159+318-12=465457-386=7194+296=390886×(967-959)=7088201+(189-178)=212373-(136+74)=163370-(46+130)=19440+156×2=35274+630+24=728256-63+30=223592+(910-392)=1110865-373-242=250452-65+349=736854+(941-491)=1304168+822+712=170276+416=492509+352-747=114862-118-320=424608-36×9=284271-(415-380)=236848+(830-786)=892948-(772+43)=133194-28×3=110541-(823-346)=64219+332+60=611267-228=39248-(440-338)=146221+773-927=67503+196=699930-(410+479)=41165-65+40=140414-19×8=262313+12×6=385147+323×2=793292-(143+139)=10188×3-396=16828+466-296=198198+329+705=1232279-155+679=803285-(177+29)=79701+(629-143)=118775-17+185=243830-317-384=129858×(759-756)=2574349+693-296=746110-54=56210×6-350=910395-50×7=45624+585+79=1288497-260=23734+691+843=1568231-142=89998-94-808=96290+255=5453/8-1/8=2/8395+(495-257)=633515+478+580=1573642+22+302=966729×9-141=642099×7+68=761306-154-104=48718+78+15=811340-313=27152+130=282273×2=546112×2=224336+155-151=340418+(435-124)=729527-(863-615)=279721-200+794=1315127×5-288=347401+253=654303-20-122=161467×2-598=336384-(190+149)=45819-170+839=1488349+667-289=727789-37-265=487273-(128-62)=207862+637=1499459+620+707=1786451-176+148=423190×(157-153)=760139-136+49=5229+355-88=296130+87×7=739481+501=982969×8=7752198+683+47=928431-368+209=27268+(482-207)=343289×3+114=981270-26×5=140452-20×6=332710-306=404805+143-873=7583×6-229=269343×(132-125)=2401937+217-660=494494+780+502=1776110+66=176812-330-235=247473-85×5=48652-392+614=874816-535+357=638812-23×6=674426-191-13=22282×(368-362)=492149-70+385=464381-72×3=165494+(235-51)=678856-346-446=64883+74+337=1294522×4-906=1182704×(992-987)=3520719×6-652=3662365-229=136649+(636-153)=11321/7+4/7=5/7216-168+428=476173-(649-525)=49868×8=6944388-(92-59)=35581+296=377905×3-171=2544219+697-813=103933-(353+147)=43387+326×2=739216+273=489998-189-59=750501+308+574=1383226×4-645=25961×4+10=254247-(308-217)=156575×4=2300388×2-294=482353-57+730=1026144×5+923=1643413-237+20=196719-(100+457)=16271×7=497991+(909-138)=1762411+440-680=1714/9-2/9=2/927+379-376=3080×5+554=954144×6+852=1716164×4-501=155264+(849-221)=892656×7=459260+103-40=123866-(129+269)=468269×8-725=142748+175×5=923430-296-115=19130×(37-31)=780315-59×3=138332+518+70=920329-(256-91)=164948-425=523145-65×2=15216+485=701163×(179-173)=978301+128+48=477493-(254-58)=297959+868=1827659-179=480870-532-320=1856+207+518=781168-71-88=9522-385=137307×3-830=91181+277=458481-(232+11)=238337+971=1308308×(178-175)=924309-251+51=109963+695+433=2091472-284=188380×5=1900571×(362-356)=3426173×(183-180)=519496-(238+131)=12733+337-47=323191+97=28813×(155-146)=117523+546-714=355459+213×4=1311345+282+50=677891-(402+142)=347112×(496-489)=784157-(373-268)=52883×(370-362)=7064476-(474-143)=14541×4+377=541997+(483-213)=12673/6-2/6=1/6168×3-473=31185×(57-49)=1480341-80-15=24635×6-41=169259+(186-10)=435774-(146+30)=598830-(65+132)=633979-(682+192)=105283+21×8=451332-30×2=272909+168×4=158146×3+489=6271/5+2/5=3/5111×(412-405)=777431-(301+113)=17609-502+333=440208-26-142=40355-97+401=659776×(223-214)=6984217+169-196=1903/8+2/8=5/8626-180=446756-108×2=540453×2=906364-(248+14)=102159×2=318313×2-391=235398-360+217=255592-70×5=242453-270+423=606130+234×4=1066491-217-138=136159-54+268=373470-(35+415)=20414-121-21=272200-(169-168)=199428-102-204=122644-(964-641)=32157×6-301=41475-92-364=19398+(231-56)=573202+53-59=196236-(265-60)=31464-102=362285×(667-661)=1710939-192×3=36385-(377-315)=23305-148×2=9989+(777-408)=135846+164=2105/10+4/10=9/10470+402=872784-634-78=7251×3=153222-11×9=1231/4+3/4=1705×9-973=5372277+234×2=745871×(817-810)=6097204×3-171=441264-33-132=99171-(314-169)=26664-(651-419)=432688+983-439=1232614-(333-24)=305517×2-703=331173+97=2704/7-2/7=2/762×4=24898+666+146=910317+79=396284+(492-158)=618812-(781-704)=735189-(399-333)=123220+90=310498-(473-30)=55934-345+961=15506/9+2/9=8/9819-(431+96)=29260×5-44=256187-(467-377)=97499-145-332=22806-731+407=482708×2-10=1406643×(812-808)=2572431-(277+100)=54434-414=20579-58×9=57880×(48-42)=5280163×4-317=335197×3=591472+13+228=713519-(19+314)=186333×2=666846+(675-33)=1488198+(222-82)=338398×2-107=689385-(46+234)=105205×4=820331-164=167481-35×4=341388-63-268=573/6-1/6=2/634×7+182=420758-342-198=218215+227-67=375415+73=488197+55×8=637303+583+45=931103×(415-411)=412206-168=38478-92×5=18381×2-466=29698+353-240=211255+(350-123)=482854-(307+320)=227457-(103+286)=68341-78-257=6904-279=625524-(13+189)=322252+426+306=984349×4=1396609×3-975=852596-(309+269)=18221+19×6=335505-(757-362)=110691+567+401=1659449-196+540=793488-(219+108)=161840-(43+338)=459501+188+167=856205+334×2=873116+282-104=294211+773-706=278456-215=241392-(371+17)=4432-37×6=210236+41-64=213262-(289-279)=252467+(294-136)=6255/7-2/7=3/7789×7=5523338+305=643679-(715-363)=327482+383=865151+279=430727-21+244=950500×(151-146)=2500155×(238-233)=77572×4+356=644262-24=238423+71=49494+498×2=1090916-(906-29)=39191×2=382432×(53-49)=1728632×8=5056154×3=462120+227=347903-(82+328)=493694+(757-28)=1423372×6-906=1326216+394+305=915295×3+295=1180657-389-73=195432-414+306=324954+126+746=1826179×(294-286)=1432509×4=2036861+607-128=1340774-174=600619+658+632=1909299-(300-232)=231641×8=5128323-(48+165)=110328+(734-562)=50048×4+327=519188×2-303=73754-190×3=184617+27+919=1563779-187×2=4053/7-2/7=1/7860-(396+230)=234476-81-331=64440+107+94=641228×4-777=135563×(597-590)=3941805-70×7=315797-93-93=611301+272=57359×2+540=658391-292+178=277123×5-545=70922+(811-669)=1064175×2+297=64726×4+872=976134-11×2=112818×(927-919)=6544521+621+425=1567496×(406-400)=2976480-159×2=162926-30×7=716193+(411-147)=457422-106×3=104247-174+171=244872-(167+29)=676366-263=103103+238+213=554405-321+201=285671+115+206=992453-268-66=119631-145+292=778337-69×3=130589-432=157144-14×6=60732-470=262968+448=1416234-193+120=161163+(421-301)=283522+80+97=69993×7=651816-10=806957-154-72=731616+591=1207814×2=1628501×(815-811)=2004102-(446-413)=69328×9=2952125×(70-62)=1000155×(410-407)=465737-(276+265)=196235+(95-68)=262258-(798-625)=85618-(503+42)=7362+(244-229)=77201×4=804708-10×6=648785+(567-144)=120866+54+785=905118+16+757=891467-261=206388-372+137=153738-(852-279)=165375×8-874=2126443-(223+45)=175322-85-50=187903-519+523=907370-52×4=162425×5=212547×2=94389+279=668363-350+102=115171×2=342208+82=290637-16=62138×7=2664/7-1/7=3/773+394+23=490222+253=475352×2-209=495459-438+354=375788-(31+748)=949×4=196433-132=301102×(377-371)=612264-97=16764×(373-367)=38475-22=53775×(850-842)=6200311×2=622207+148=355354+73-165=262402-145=257583-107-144=332493+(71-59)=505267-112-121=34115×5-87=488406-199×2=8259-51-15=193187+(315-178)=324131+620=751414-338+20=96131×3=393479-12×2=455412-237+697=872135×(394-387)=945620+129×6=1394139×3=417771-730=41817+(583-503)=897341-140×2=61513×3-256=1283113×4-117=335292×3-657=219995-235×4=55469+164×5=1289780×6-81=4599184-164+462=482724+188=912505×3=1515352+131-389=94312-245=67490-29-338=123356-133=22377+797+84=958424-18×8=280117-38=79317-304=13339-180+149=308235+(394-55)=574458-(78+368)=12321+306+905=1532401-301+265=365176×4+68=772103+70=173245+(342-300)=287191+253-191=253233-(742-564)=55467-61=406310+82=392380-351=29941×(779-772)=6587496+(664-130)=1030208×4+969=180195×(94-87)=665925+(917-402)=1440646-257=38974×5-263=107190-(322-139)=75/8+3/8=1160+82-153=8990+296+413=799268-(251-94)=11192+(239-183)=148273×3=819274+116=39080+78×9=782375+69×2=513637×6=3822452-90-169=193411+588+765=176434×4+167=30348+145+379=572827-140×2=547340+313-468=18565×6-201=189866-11-643=212281+11×7=358501×8-984=3024154+208-63=299232-206+336=362284-50×2=184246-187+248=307332+69-394=7398-(55+85)=258982-611-66=305602+(542-418)=72683+197×5=1068305-89+15=23172×(283-274)=648285×2-108=462290+210-360=1405/9-2/9=3/9236+106=342254+(655-111)=798258×(172-169)=77415×(466-461)=75930×3=2790467-177=290624+234=85857-47=104/8+3/8=7/8373-(228+114)=31118+346-330=134955-(669-140)=426224×2-126=322622-568-24=30303-200=1037/9+2/9=134×3+425=52795×(450-441)=855317×2+331=965134-(252-205)=87989+560=1549339×8-180=2532394+76=470665-493=172213+49=262853-396×2=61471-(76+297)=98466-78×3=232321-(51+188)=82440-410+40=70728-371+582=939250-166=84956-66×8=4285/8-2/8=3/8177+163×3=666752+(924-230)=14463/9+4/9=7/9353×6=2118370-(90+168)=112928-(441-372)=859627×3=1881698-170×2=358342-213+135=264870+359-787=442149+84×8=821306+358=664847+516-608=755413-124-28=261422-30×4=30280×8=640235×3+615=1320267+271+331=869243+(210-36)=417546×3-997=641375+93=468222+(464-113)=573448-(473-392)=367340-62×2=216650×2-600=700676-40=636190-(64+71)=55572-465+613=720155×3-405=60444-(66+279)=99144+166=310162×3+220=706610+82×8=1266979-765+282=496414-43=37181×6=486512+249-411=350109×2=21820×6=1202/7+4/7=6/7316+384-386=3142/4-1/4=1/4311-225+903=989714×3-629=1513633×6=3798812×5-267=3793660+247=90796+136=232118×(455-451)=472104+988+337=1429419-(73+74)=272147+(366-233)=280817-(806-263)=27412+184-50=146119+370+412=901685-52×3=52910×4=40977+184-863=298157+313-211=25972×(340-335)=36083×2=166135-(242-238)=131525+199=724224×4-407=489671+133×5=1336852-(408+150)=294148×6=888432-155-162=115572×(866-860)=3432719+(233-111)=841381-(468-462)=375344-187+29=186493-(15+454)=24426+(437-31)=83269+181-248=2779-520-57=202958-57-146=755793+361-467=687277+600-452=425166-(496-408)=78331+937+670=1938276-87-186=3222+276+456=954746-623+178=301417-334-11=72108+362-25=445893-188+338=1043487+798+663=1948332+(204-79)=45782+89=171414+73×7=92535×8+443=723102×5=510911-(450+320)=141455-(103-101)=453318-39=279322-(65+101)=156780-(509-345)=616209+157-67=299402-(117+168)=11792+26=118456-380=76321+95×3=606364-302=6265+753+86=