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646-(709-361)=445-123-255=754×4=2/6+3/6=961+580-251=780+971-950=435-182+199=42×(25-16)=394-382+393=418-173-103=662+398×2=299-216+175=413-187=532-42-351=922-347+680=424-(334-275)=596×(94-89)=669-(830-591)=216+231×3=717×(671-667)=316-(251+64)=293×3+918=51+853+27=534×6-386=853+232-546=994-57×4=213-(330-207)=417-68×3=527-122×2=123-29-14=667-474=690+669=195+266-363=3/8+2/8=393+(488-314)=161-77=234+247-185=856+(960-901)=57×5=734+13+117=167+612+801=22×(449-444)=351-(84+105)=143+170-231=82+(473-192)=47×6=48×3=16×2=345+107+335=491-(96+296)=497-64+12=927+118+764=468-(371-141)=60-(446-416)=257-150=27×3+463=619-48×4=275×2+106=48×6-195=86+153-172=330+722+820=143×7=49+168×4=414-(430-149)=877-(447+165)=31×9+124=808+60+674=189+67=210+320×2=425-(375+23)=236-64=601+(392-168)=443+(993-257)=488+162-85=415-250=985-461+900=337+(494-222)=317-110×2=197×(308-305)=272+106+289=26+406-122=636×(787-783)=164×7-70=122×8-55=835-41×2=764+(785-516)=265+225-260=366-(276+34)=12+360-348=551-(114-20)=411-127×2=362-(162+68)=210+589=61×(409-400)=758-372-46=919-128-312=152+205×2=399-200-10=144+48-46=405-55×3=52+822+58=133×(288-279)=567-(162+357)=490-(161+201)=745-632=494-61+430=199-187+468=652-311-319=179×3=225×(481-477)=473-(164-161)=339+294+35=836+(449-74)=271+610=459×4-437=495+(429-392)=532-52×9=175+208=428+343=55×4+848=475+(814-678)=219-78+48=450-275+147=168×(341-336)=702×(722-715)=318+(296-96)=179+553+904=414-20×4=409-314+347=48+(345-90)=430+965=851-(61+155)=255+214-325=570-348-62=281-276+41=438+722-766=286-(128+47)=423+127-156=528-45×8=37×7-22=401-49-72=3/7-2/7=205+207=748-419-122=990-190-215=181+724+728=315×(43-40)=132-22+158=736-(568+159)=254+93=6/9-1/9=279-(107-51)=421-87×4=490-66-281=370×3-122=803+117×7=437-86=983-694+249=32×(467-459)=972-(604+40)=494+51×9=824×(959-953)=345×2+221=139×(457-450)=753-(541-329)=696-65×2=910-877+56=670-226=440-(258+51)=347-18×4=789+(842-357)=943-(647-225)=376-169=634+486-126=2/8-1/8=374+(356-145)=157-13=813+(930-396)=142×4=284-(187-130)=88+856+474=497+110×4=376-28×8=146×(340-334)=974+980-267=60×7-279=128+295+79=659×4=99×9=830-98-210=229-(75+84)=562-13+39=625×(393-390)=350+830=687-380+255=419×2-61=357+28-232=522-61+120=96+117=365-20×4=635-383=21×7=457+393=158+(322-296)=525+268+150=177-83+242=453-(214+204)=417+(674-625)=264+209=101×3+257=257-199=242-(492-275)=686×(338-333)=168×4-279=202×4=255+(205-122)=908-(126+485)=240×2=823+371+805=489-24-289=167×5-762=473-25×8=92+(377-62)=152-(390-306)=857-594+41=108+194+138=994×(459-453)=786×4=461-443+471=535+301=437+29-416=826×(153-147)=663-94×6=278+(444-62)=944-380+807=630+435-660=154×4=30×3=641×4-489=134×6+173=668+362-255=17×8+176=18×4=99-69=856+34×3=151+772=5/9+3/9=325-31×3=192×(733-724)=372-(130+73)=669-663+550=980×(824-816)=4/8-1/8=728-(452-327)=246+239=331-(307-101)=886-76×3=300+(346-15)=887+(675-344)=623×9-617=758+(956-538)=945-(516+284)=320-(334-208)=903+16-781=763×(484-480)=412-293=331-(491-306)=142×(78-71)=454+662+850=838-(273+448)=375-66×2=264×2+260=359-213=165-119-44=327×8-60=155+477-616=372-183-76=876-472-160=869+65×6=158+224=592+208+392=220+150=755-(72+218)=150×3+444=314+173=17×9+441=129×4+286=18×6=604×2=260+96×3=133-(402-365)=868-(251-195)=220-166=601×6=822+117+83=843-94=2/4-1/4=240×(479-475)=176×(402-397)=450-47=24×(266-261)=412-84-279=642+445-814=140+254+353=653-(189+86)=158-20-95=256+60=290+175=116+213-139=78×6=143×2=473+76+214=502×8=462-102=49+227=97-(457-417)=58×8+392=311-125-149=463+541+815=682×(397-392)=851×3=83×9+242=225-106+241=916-505+464=19+412-391=265-264+90=190×2=250×9-797=732×3-48=17×7=479-440=924-(628+87)=344-10=177×(233-228)=588+188=17+13+350=97+160+164=149+225+337=199-34×4=186+(146-99)=755×2-959=14+452+177=114+316=872×4=343+(443-349)=933-340+936=890-(24+492)=432+(655-339)=68×9+980=717+504=35×9-203=174×(315-311)=867-593+725=231×4-117=242×4-166=109+260=919-41-418=256×2=435-(206+195)=365+(138-44)=30+76=6/8+2/8=897+151-248=647+(221-131)=183×(40-34)=4/7+2/7=49+36+877=134×7-498=438-28×2=283+924+45=268+220-366=195×(187-182)=264+(424-69)=671-411+144=342×7=78×4+598=108+260+56=499+410=12×5+238=376-(97+210)=709×(538-534)=489-(388+26)=872-701=247+250×3=883-(152+29)=153-28+338=690-209=338×2-181=364-218+107=67+396=291×(407-400)=23+911+227=846+776=75×5-11=227+227=463-(135+206)=234+207=1/7+3/7=30×6-54=199+909-948=195×4+161=73+157×5=439-(214+193)=5/10-1/10=73+360=666×(207-202)=923-299-423=924-107×8=875-(368+195)=423-94-244=456+241+111=403-19×3=134-(32+55)=693+129+161=98+259×2=71+410=970-286=141×2=380-67×3=274-205=156-107+110=288-(171+68)=341+(426-226)=48×2+582=91×9-125=697+177+84=418-145=741-317×2=456+(431-248)=108+266=372+(595-173)=338+850-621=673-91×7=173-(337-200)=921+(65-13)=493-28+876=445+(267-92)=65+327=288×(476-473)=806-350=468-150-87=530×5-979=311+475=174×3+317=955-(957-296)=659-386+397=611-(155+351)=248×3=148×(387-384)=512×4-577=613-(599-524)=989+(494-306)=522-11-302=366-16+270=999-744+444=651-117+221=341-(279+52)=25×4+329=36×9-287=176×5+321=277×3=164+407=309+74=765-395=673×8=358×7-106=211×7=328-104×3=187×(369-364)=362-91=196+(351-41)=482-64×7=163×(281-278)=464-83×4=133×6-573=374+127+463=692+690=477-378+366=57+134×6=226+249-101=611×8-678=5/9-1/9=90+238=82+(391-366)=112+28=311×2-254=491×2-71=132×(915-907)=261+386+191=67×6=232-(593-586)=874-164×4=557+99-13=971-(125+291)=827-349-57=393-243-121=649-618+115=1/6+3/6=799-294=139+88-208=634×9-84=993-215=214-56-128=255+(452-257)=920-365×2=777-(223+447)=805-80×2=114×8-325=919-(801-713)=285+190-255=354+270=834-304-471=105×9-659=110+164+460=360+398+138=284×(452-446)=559+282×3=303-(375-149)=802-277+845=305+168+99=398-150-198=213-(469-343)=177+116=166-162+85=231-(54+127)=495-347-115=287×6=1/7+5/7=335+151=497-94×2=837×4-95=368+(479-242)=465-88×4=979-731=324-18×2=25+496+111=183×5=421-(890-822)=436-108×3=167+150=717+969+710=834×(892-884)=101+185-92=295-(58+194)=469-(467-215)=876-(666+168)=895+36×4=43+468+224=346-(477-379)=126+352-306=118+(290-206)=220+145+440=279-126×2=464+268+477=560-556+303=656-(284+294)=210-(176-125)=449+169×2=121×4-114=231-(68+11)=32+183×2=271+(790-185)=568+(636-193)=133-28=917+54×3=13+(450-419)=409-292=437-(363-75)=483-256+150=578×(269-266)=373-(203-78)=4/7-1/7=375+740-21=732-(125-98)=134+214-269=302+288×2=263×2+155=448+318=6/10+3/10=723+(446-81)=299-50-136=335-(212-127)=141×(736-729)=467+112×3=720-643-71=475-81×3=56-23+77=269-149=53×(245-241)=361-35-96=936-765=810+591=222+205+540=269-(476-208)=885+456+181=868×6-384=892-(845-782)=107-(494-418)=206-(130+19)=830×3=250×7-466=402-(212-105)=362+44-57=326-297=410+108×3=829+(281-108)=839-76×7=419-(428-75)=426-15-243=287+168=363×7-43=920-134-491=553+347+64=401+10-143=855-(368+485)=333-254-77=179-(342-301)=367×2+182=237×3=348-(648-471)=141+557+233=221×6-914=39+349-354=744-79-382=609×4=641×(274-271)=450+(305-52)=94×8=882+17×9=28×7=545-528=509×8-437=199×4=125+593+168=94+100×5=281+48×5=327-154=45-13+443=561×(579-571)=631×9-96=754-308-77=451-60×2=479-65×5=516-(376+12)=301-226+198=268-226+100=104+470+65=90-49=724-156-252=918+80×3=71×3=444×2=203-(19+130)=989-168+557=923-46×9=321×5-351=472+(806-163)=308-115=65×(207-202)=336+(733-656)=659-(797-767)=565×4=303×2-401=116+940-588=923-249=50×(107-104)=340+(406-87)=726-347-323=955-(359+303)=497-(30+41)=132×6-379=384-(230+72)=396×4=161×(219-215)=3/7-1/7=274-199=987-(412+481)=58×3=475-97-339=186+(261-258)=13×(431-426)=202-60×3=792×(501-493)=934×4=108×8+915=682+31-298=10×(178-170)=73+538-441=506+(178-99)=371-58×3=630+211-365=622+166=559+171=729-(127-12)=650×3=828-103×8=148+12-86=440-34-25=391+952+335=776×6-829=386-(356-253)=54+298=99×7-152=378-377+127=428-211-158=753-82×6=1/4+2/4=96-83=178×5-605=459-(302+23)=342×2-52=172-(133-113)=854-275-51=137+221-286=280+118=46×(118-114)=68×4-131=974-263-454=318×(385-382)=985-(736-624)=90×6=292-226+243=371+(388-61)=25+232-187=273-37×2=488+73×5=16×9+499=366+864-124=400-368=941-595+224=153+478-473=420×(76-71)=83×9-179=666-493=328+(269-23)=1/8+2/8=84×5-346=763+213+612=624-19-432=64×4=454-324=241-61=337+159=68×5=855×4-476=953×4=228-21-44=22+(671-538)=533×4-127=158+296-81=90-(257-183)=383-(95+108)=358-351+403=249-13×7=674-213=444-262-34=207+345×2=58+26×8=202-76×2=303×2-97=68+571+169=935-625+390=564-47+364=348-(159+15)=301-(392-96)=821-44×9=72×5=298-(370-305)=686×4=422+(237-120)=813+(610-330)=320-75+150=920-333-412=49-(936-905)=992-(219+764)=240-77=397×3-903=352-264=312-31-18=2/6-1/6=19×2+16=477-87-203=297+133=45×8=597-53×2=881+(910-541)=626×4=8/9-1/9=99-(366-356)=860-604+501=448+765-528=553-46×7=756+927+842=484-65×4=291-(143+10)=417-108-293=49+387-367=3/8-2/8=426+(438-158)=351-(135+211)=847-536+517=6/9+3/9=58+406-89=366-70-203=197-33×3=646-(555-103)=248×6-376=176-90=314-(161+151)=395-(204+74)=420-52×6=174+241-353=27×(33-28)=904+10+50=387×(504-499)=684+668=157+241=249-198=279+(988-616)=614+986+204=799×6-786=320+976-543=957-53-317=207+64=172-116=246-35×7=345-136+51=804+828-412=400-(25+173)=815×2=50+570+905=580+177=237-67+303=969-(629-360)=267-89-43=327+117-250=65×6=865-264-317=274-56=138×4+94=104×5+772=385+604-280=460-(283-99)=823-748+399=734+692-997=441-163=848-226-617=369+157+55=438-(128-67)=30×(416-407)=381-91-172=380-54=126-60×2=242+212+299=82+186+483=983-(168+254)=626+488=754+(988-349)=44×(456-451)=434-86×5=489-157=899-(421-276)=412-127=984-(955-899)=参考答案646-(709-361)=298445-123-255=67754×4=30162/6+3/6=5/6961+580-251=1290780+971-950=801435-182+199=45242×(25-16)=378394-382+393=405418-173-103=142662+398×2=1458299-216+175=258413-187=226532-42-351=139922-347+680=1255424-(334-275)=365596×(94-89)=2980669-(830-591)=430216+231×3=909717×(671-667)=2868316-(251+64)=1293×3+918=179751+853+27=931534×6-386=2818853+232-546=539994-57×4=766213-(330-207)=90417-68×3=213527-122×2=283123-29-14=80667-474=193690+669=1359195+266-363=983/8+2/8=5/8393+(488-314)=567161-77=84234+247-185=296856+(960-901)=91557×5=285734+13+117=864167+612+801=158022×(449-444)=110351-(84+105)=162143+170-231=8282+(473-192)=36347×6=28248×3=14416×2=32345+107+335=787491-(96+296)=99497-64+12=445927+118+764=1809468-(371-141)=23860-(446-416)=30257-150=10727×3+463=544619-48×4=427275×2+106=65648×6-195=9386+153-172=67330+722+820=1872143×7=100149+168×4=721414-(430-149)=133877-(447+165)=26531×9+124=403808+60+674=1542189+67=256210+320×2=850425-(375+23)=27236-64=172601+(392-168)=825443+(993-257)=1179488+162-85=565415-250=165985-461+900=1424337+(494-222)=609317-110×2=97197×(308-305)=591272+106+289=66726+406-122=310636×(787-783)=2544164×7-70=1078122×8-55=921835-41×2=753764+(785-516)=1033265+225-260=230366-(276+34)=5612+360-348=24551-(114-20)=457411-127×2=157362-(162+68)=132210+589=79961×(409-400)=549758-372-46=340919-128-312=479152+205×2=562399-200-10=189144+48-46=146405-55×3=24052+822+58=932133×(288-279)=1197567-(162+357)=48490-(161+201)=128745-632=113494-61+430=863199-187+468=480652-311-319=22179×3=537225×(481-477)=900473-(164-161)=470339+294+35=668836+(449-74)=1211271+610=881459×4-437=1399495+(429-392)=532532-52×9=64175+208=383428+343=77155×4+848=1068475+(814-678)=611219-78+48=189450-275+147=322168×(341-336)=840702×(722-715)=4914318+(296-96)=518179+553+904=1636414-20×4=334409-314+347=44248+(345-90)=303430+965=1395851-(61+155)=635255+214-325=144570-348-62=160281-276+41=46438+722-766=394286-(128+47)=111423+127-156=394528-45×8=16837×7-22=237401-49-72=2803/7-2/7=1/7205+207=412748-419-122=207990-190-215=585181+724+728=1633315×(43-40)=945132-22+158=268736-(568+159)=9254+93=3476/9-1/9=5/9279-(107-51)=223421-87×4=73490-66-281=143370×3-122=988803+117×7=1622437-86=351983-694+249=53832×(467-459)=256972-(604+40)=328494+51×9=953824×(959-953)=4944345×2+221=911139×(457-450)=973753-(541-329)=541696-65×2=566910-877+56=89670-226=444440-(258+51)=131347-18×4=275789+(842-357)=1274943-(647-225)=521376-169=207634+486-126=9942/8-1/8=1/8374+(356-145)=585157-13=144813+(930-396)=1347142×4=568284-(187-130)=22788+856+474=1418497+110×4=937376-28×8=152146×(340-334)=876974+980-267=168760×7-279=141128+295+79=502659×4=263699×9=891830-98-210=522229-(75+84)=70562-13+39=588625×(393-390)=1875350+830=1180687-380+255=562419×2-61=777357+28-232=153522-61+120=58196+117=213365-20×4=285635-383=25221×7=147457+393=850158+(322-296)=184525+268+150=943177-83+242=336453-(214+204)=35417+(674-625)=466264+209=473101×3+257=560257-199=58242-(492-275)=25686×(338-333)=3430168×4-279=393202×4=808255+(205-122)=338908-(126+485)=297240×2=480823+371+805=1999489-24-289=176167×5-762=73473-25×8=27392+(377-62)=407152-(390-306)=68857-594+41=304108+194+138=440994×(459-453)=5964786×4=3144461-443+471=489535+301=836437+29-416=50826×(153-147)=4956663-94×6=99278+(444-62)=660944-380+807=1371630+435-660=405154×4=61630×3=90641×4-489=2075134×6+173=977668+362-255=77517×8+176=31218×4=7299-69=30856+34×3=958151+772=9235/9+3/9=8/9325-31×3=232192×(733-724)=1728372-(130+73)=169669-663+550=556980×(824-816)=78404/8-1/8=3/8728-(452-327)=603246+239=485331-(307-101)=125886-76×3=658300+(346-15)=631887+(675-344)=1218623×9-617=4990758+(956-538)=1176945-(516+284)=145320-(334-208)=194903+16-781=138763×(484-480)=3052412-293=119331-(491-306)=146142×(78-71)=994454+662+850=1966838-(273+448)=117375-66×2=243264×2+260=788359-213=146165-119-44=2327×8-60=2556155+477-616=16372-183-76=113876-472-160=244869+65×6=1259158+224=382592+208+392=1192220+150=370755-(72+218)=465150×3+444=894314+173=48717×9+441=594129×4+286=80218×6=108604×2=1208260+96×3=548133-(402-365)=96868-(251-195)=812220-166=54601×6=3606822+117+83=1022843-94=7492/4-1/4=1/4240×(479-475)=960176×(402-397)=880450-47=40324×(266-261)=120412-84-279=49642+445-814=273140+254+353=747653-(189+86)=378158-20-95=43256+60=316290+175=465116+213-139=19078×6=468143×2=286473+76+214=763502×8=4016462-102=36049+227=27697-(457-417)=5758×8+392=856311-125-149=37463+541+815=1819682×(397-392)=3410851×3=255383×9+242=989225-106+241=360916-505+464=87519+412-391=40265-264+90=91190×2=380250×9-797=1453732×3-48=214817×7=119479-440=39924-(628+87)=209344-10=334177×(233-228)=885588+188=77617+13+350=38097+160+164=421149+225+337=711199-34×4=63186+(146-99)=233755×2-959=55114+452+177=643114+316=430872×4=3488343+(443-349)=437933-340+936=1529890-(24+492)=374432+(655-339)=74868×9+980=1592717+504=122135×9-203=112174×(315-311)=696867-593+725=999231×4-117=807242×4-166=802109+260=369919-41-418=460256×2=512435-(206+195)=34365+(138-44)=45930+76=1066/8+2/8=1897+151-248=800647+(221-131)=737183×(40-34)=10984/7+2/7=6/749+36+877=962134×7-498=440438-28×2=382283+924+45=1252268+220-366=122195×(187-182)=975264+(424-69)=619671-411+144=404342×7=239478×4+598=910108+260+56=424499+410=90912×5+238=298376-(97+210)=69709×(538-534)=2836489-(388+26)=75872-701=171247+250×3=997883-(152+29)=702153-28+338=463690-209=481338×2-181=495364-218+107=25367+396=463291×(407-400)=203723+911+227=1161846+776=162275×5-11=364227+227=454463-(135+206)=122234+207=4411/7+3/7=4/730×6-54=126199+909-948=160195×4+161=94173+157×5=858439-(214+193)=325/10-1/10=4/1073+360=433666×(207-202)=3330923-299-423=201924-107×8=68875-(368+195)=312423-94-244=85456+241+111=808403-19×3=346134-(32+55)=47693+129+161=98398+259×2=61671+410=481970-286=684141×2=282380-67×3=179274-205=69156-107+110=159288-(171+68)=49341+(426-226)=54148×2+582=67891×9-125=694697+177+84=958418-145=273741-317×2=107456+(431-248)=639108+266=374372+(595-173)=794338+850-621=567673-91×7=36173-(337-200)=36921+(65-13)=973493-28+876=1341445+(267-92)=62065+327=392288×(476-473)=864806-350=456468-150-87=231530×5-979=1671311+475=786174×3+317=839955-(957-296)=294659-386+397=670611-(155+351)=105248×3=744148×(387-384)=444512×4-577=1471613-(599-524)=538989+(494-306)=1177522-11-302=209366-16+270=620999-744+444=699651-117+221=755341-(279+52)=1025×4+329=42936×9-287=37176×5+321=1201277×3=831164+407=571309+74=383765-395=370673×8=5384358×7-106=2400211×7=1477328-104×3=16187×(369-364)=935362-91=271196+(351-41)=506482-64×7=34163×(281-278)=489464-83×4=132133×6-573=225374+127+463=964692+690=1382477-378+366=46557+134×6=861226+249-101=374611×8-678=42105/9-1/9=4/990+238=32882+(391-366)=107112+28=140311×2-254=368491×2-71=911132×(915-907)=1056261+386+191=83867×6=402232-(593-586)=225874-164×4=218557+99-13=643971-(125+291)=555827-349-57=421393-243-121=29649-618+115=1461/6+3/6=4/6799-294=505139+88-208=19634×9-84=5622993-215=778214-56-128=30255+(452-257)=450920-365×2=190777-(223+447)=107805-80×2=645114×8-325=587919-(801-713)=831285+190-255=220354+270=624834-304-471=59105×9-659=286110+164+460=734360+398+138=896284×(452-446)=1704559+282×3=1405303-(375-149)=77802-277+845=1370305+168+99=572398-150-198=50213-(469-343)=87177+116=293166-162+85=89231-(54+127)=50495-347-115=33287×6=17221/7+5/7=6/7335+151=486497-94×2=309837×4-95=3253368+(479-242)=605465-88×4=113979-731=248324-18×2=28825+496+111=632183×5=915421-(890-822)=353436-108×3=112167+150=317717+969+710=2396834×(892-884)=6672101+185-92=194295-(58+194)=43469-(467-215)=217876-(666+168)=42895+36×4=103943+468+224=735346-(477-379)=248126+352-306=172118+(290-206)=202220+145+440=805279-126×2=27464+268+477=1209560-556+303=307656-(284+294)=78210-(176-125)=159449+169×2=787121×4-114=370231-(68+11)=15232+183×2=398271+(790-185)=876568+(636-193)=1011133-28=105917+54×3=107913+(450-419)=44409-292=117437-(363-75)=149483-256+150=377578×(269-266)=1734373-(203-78)=2484/7-1/7=3/7375+740-21=1094732-(125-98)=705134+214-269=79302+288×2=878263×2+155=681448+318=7666/10+3/10=9/10723+(446-81)=1088299-50-136=113335-(212-127)=250141×(736-729)=987467+112×3=803720-643-71=6475-81×3=23256-23+77=110269-149=12053×(245-241)=212361-35-96=230936-765=171810+591=1401222+205+540=967269-(476-208)=1885+456+181=1522868×6-384=4824892-(845-782)=829107-(494-418)=31206-(130+19)=57830×3=2490250×7-466=1284402-(212-105)=295362+44-57=349326-297=29410+108×3=734829+(281-108)=1002839-76×7=307419-(428-75)=66426-15-243=168287+168=455363×7-43=2498920-134-491=295553+347+64=964401+10-143=268855-(368+485)=2333-254-77=2179-(342-301)=138367×2+182=916237×3=711348-(648-471)=171141+557+233=931221×6-914=41239+349-354=34744-79-382=283609×4=2436641×(274-271)=1923450+(305-52)=70394×8=752882+17×9=103528×7=196545-528=17509×8-437=3635199×4=796125+593+168=88694+100×5=594281+48×5=521327-154=17345-13+443=475561×(579-571)=4488631×9-96=5583754-308-77=369451-60×2=331479-65×5=154516-(376+12)=128301-226+198=273268-226+100=142104+470+65=63990-49=41724-156-252=316918+80×3=115871×3=213444×2=888203-(19+130)=54989-168+557=1378923-46×9=509321×5-351=1254472+(806-163)=1115308-115=19365×(207-202)=325336+(733-656)=413659-(797-767)=629565×4=2260303×2-401=205116+940-588=468923-249=67450×(107-104)=150340+(406-87)=659726-347-323=56955-(359+303)=293497-(30+41)=426132×6-379=413384-(230+72)=82396×4=1584161×(219-215)=6443/7-1/7=2/7274-199=75987-(412+481)=9458×3=174475-97-339=39186+(261-258)=18913×(431-426)=65202-60×3=22792×(501-493)=6336934×4=3736108×8+915=1779682+31-298=41510×(178-170)=8073+538-441=170506+(178-99)=585371-58×3=197630+211-365=476622+166=788559+171=730729-(127-12)=614650×3=1950828-103×8=4148+12-86=74440-34-25=381391+952+335=1678776×6-829=3827386-(356-253)=28354+298=35299×7-152=541378-377+127=128428-211-158=59753-82×6=2611/4+2/4=3/496