三年級數(shù)學(上)計算題專項練習附答案集錦539-235-256=271×3=56+34=754+24+90=51+44=243×(736-732)=860-597-233=248+29-48=296+85-129=210+13-159=374-(125+121)=187+542+19=912+478+800=806+433-306=145×4=193+(351-36)=189+30-154=465-380-52=451-138-134=272-43×5=774-197-277=490-30×6=333×(415-412)=713-(479-129)=436-16-68=303-99-198=201+193-134=482-10×9=175+177-41=2/6+3/6=406-364+75=173×5-191=957-853=587-277=384-42-50=207×8=197+210+339=832×8-957=315+(420-340)=884+92×3=663+180+111=864+61-686=624+(504-362)=290+326+116=908+996-994=317-23×2=310-12×9=1/5+3/5=366-(197-90)=437+(644-635)=898-(261+437)=270-108×2=426-(400-298)=448-(45+95)=959-883=791+60+817=190+258+284=122-106=676-425+880=79×8-476=415-11×5=363+306=327+274=575+(614-403)=996+74×6=820+40-82=142+25+398=89+361=926+208-413=888+207+398=183-27×5=572+829=880-(567+290)=395×8=429-209+258=264+(97-33)=373×6-537=904+121×4=951-233×4=301-44-19=205-22+145=410+528=17+69×6=849-(349+181)=172+308×2=635-(921-888)=437+240+497=889-(532+59)=410-203=126×(133-130)=296×6-286=281×2+409=499+269+945=74×8=854-469=839-71×2=696-(992-892)=882×5-442=253+173=103+175=213×(271-267)=119+206=628-(154+385)=805+683+404=918-822+407=154-29=561×(324-315)=487-199=384-(304-147)=911+269+618=1/8+3/8=804-214-577=86-(211-169)=263-147+271=941-919=608×4-30=367+507-504=1/6+2/6=333-90×3=66-51+15=474-203-190=629+757+385=264+111=657-100-257=274-24+49=36+286×2=409-132=623×5=470-183-157=166+(459-73)=431-356+179=941-(587+18)=467-(901-571)=61+215=493×9-795=132×7-309=754×3-307=349+289=285-234+350=257-113=869+239+324=900+(451-285)=748-83=912+(75-53)=358×2=396-326=171-(137-64)=270-(402-399)=137+128=88+64×4=391-(43+285)=19×8+46=170×(187-184)=244+(50-45)=437-(224+118)=277+(360-307)=318+372=59+47-32=698+167=219+(496-282)=299+(920-385)=638-513+757=89+24+528=118+362-228=325+(483-232)=101×4+458=383-51×2=258-43+76=221×2=171×4+678=911-143=301+278+392=736-(526-351)=781-(245+81)=352-262=372×6-357=361-(493-157)=534-397+418=479-72×4=176+286+27=586-188=301+398×2=422+(473-48)=526-403+812=97×9+112=399-152-122=369-280+401=93+(837-82)=403×(164-156)=272-70-89=96×(359-354)=65×6+324=226-82=175+312=279+(450-124)=168×5+100=474-264+10=170-(652-597)=579+(941-365)=80+92-57=301+137=868-299+895=864-(112+493)=835+719=101×(202-199)=414+360+210=478+(514-116)=594-447-14=131×7=151×(27-23)=328-291=500-53×4=305-(338-311)=467-81=438-121×2=987-175×5=423-57=92×6+566=980-611=911-86+663=378-168+273=624-11×7=672-(741-519)=965-272-166=164×(36-32)=69×(209-201)=158-22×5=491-104=867-90×4=324-(155+79)=143×6-333=839+(311-246)=433-148+143=681-440+64=393-158=830-(241+498)=227×4-691=68×4-258=906-(892-173)=220-(308-267)=935+762-589=315-189-95=95×(102-93)=377-18×2=426-89×4=944-277-70=898×7-510=321-17×8=766×6=168×5-260=719×(793-787)=763-(196-106)=214+30×5=312+221=547-(609-552)=767+197+429=136-43-91=118-97+358=435-16×5=307×(135-132)=356-174=112×(82-76)=182-115=362-334=46×2+52=829-(326+204)=891-156×4=86+134-71=383×2-566=814+(545-54)=136×3-251=255×3-537=721×(505-500)=140×(85-80)=357+406-339=421-334+53=180+125+338=424-46×5=796×2-425=31+113=378+89-226=17+284+101=210+264-67=59+71+636=131×(77-70)=367-286-28=239-52-91=115×5-173=713+394=440-(364-120)=6/9+2/9=307-(40+209)=425+(500-190)=325-81-11=83×(164-156)=466+99=296-71-169=358-(82+269)=299-165=402-175-165=114+42=451×2=559-473=588×7=473+774+171=998×7=120-53+498=507-345+899=512-(257+183)=850+(578-523)=304×(971-966)=4/6-1/6=491-(239+68)=912-40×5=950-233×3=586-556=165+317+401=579-15+67=456-(484-361)=267+25-156=924-(739-475)=905+47×6=269×8=6/8-1/8=335-(393-131)=119+111+40=424-(33+193)=440×2+247=47+(320-136)=272+242+482=585+72-171=386-35=90×2=733-(297+351)=296-147+16=497-374+228=114×4+324=40+424+365=731×7-227=609×(601-598)=14×5+109=909-839+205=733-104×6=811-793=372-27-15=433-86×2=169+606=563+136×7=65×9-462=48+795-315=321×2=129×2=357-(500-446)=298×(355-352)=424-(442-58)=133×5=749-96+478=107×(462-457)=462-(500-51)=795+576+453=646-71×8=387-(297-139)=388+(519-193)=7/10-2/10=417×8=472-(216+159)=195-74=590×6-855=669+567-572=178×4+577=296-95×2=799-26×7=438-149-284=126-50+230=290-(115-60)=149+469=452+40-15=367+83×4=626+851+593=874×(519-515)=825-43×6=605-36×4=453-(94+143)=932-(86+667)=129×3=669-543=497-256=411-(76+257)=218+290=760-24-447=783+224-609=184-59×3=293-(346-240)=374-108+176=389-83×4=89+856-109=215+78=455-237+149=171+(490-237)=154×5-492=425-(143-40)=260-(495-392)=891×3=66+150×3=426-71-329=117×(198-195)=281-(659-615)=872+668+679=738-625=447-(128+184)=102+190=158+53+706=66×7-99=24×5+399=827-575-108=63×8-316=103+342-174=353+140=75+42=240×2+129=97+85=954×(874-867)=327-191+228=287+129=364+362=519+(964-569)=498×8=285-207=6/8-2/8=456×(323-316)=299+434=888-498-221=402+317=348-94+88=990+368=15+158×3=462-69-276=442×2-349=629-(170+199)=91×4=67-40=11×(84-75)=68×7=317-53-71=271×2-424=362-46×5=963-455+354=621+589-63=468-198=106+174=279-(431-278)=534×4-540=442+205+167=595×6-186=791-563+892=968+566=184×(214-209)=368-(377-98)=752-77-373=585×3-910=441×2-804=678-(421-208)=338×6=624-151=59-(300-245)=107×5+761=893×7=700-404-46=360×(102-94)=97×(47-39)=576×7=341+(362-349)=871-(710-115)=44+(459-299)=272+143=757-(104+206)=135+327+167=819-416-271=172+201-165=492+27+360=569-335+478=258-(247-139)=320+937=256×7=492-19+768=341-(323+18)=807×(490-487)=907+831-468=117×6+30=274-26×9=401-85=744-174-176=338-202+140=455-(135-57)=841×6=144+(692-680)=351×2+37=444-25×3=468-60-250=616×9-863=344+418-134=928-770+684=659-(599-521)=42×8=922×5=272×(183-180)=928×3=258-(105+30)=237+177×2=114-(96-91)=418-(198-197)=696-(207+39)=3/8-2/8=561×8-785=578-(149+90)=455-352=118-18-26=110+256-18=419×2+100=980-536-203=263+(478-370)=842+281=537×2=961-(29+349)=639-252+684=946-99-740=565-340+786=249-(498-420)=53+43-49=160×(99-94)=885-507-53=46×5-218=840+745+117=937-(85+278)=236-(135+42)=973-821=997-(543+326)=122+(428-126)=498-(211+196)=395+99-178=3/8+2/8=794+762=3/6+2/6=393-80+638=399-(92+200)=336×3-195=4/6-2/6=80×(248-244)=913×4=186+254=941-176×5=98+115×2=23+307-132=574-476+33=558-217-210=115+298=222+292=25×5=763-196-350=287-39×5=70+336-312=401-180+385=753-21×6=120+570+133=953×3=284×2-84=124-(668-606)=309-203=159+61=482-(86-32)=280×(172-169)=78+287-87=69+293-166=669+990-351=94×(149-146)=936-439=63×6=470+681-891=321×6=392+(407-255)=104+277=806-621=469-29×9=666-59×9=460×2=479-(122+150)=1/8+4/8=475+93×3=260-48×3=399-15×9=77×(227-223)=472+(326-278)=493-(96+393)=218×4-757=428+156+309=333-71-47=308-15×8=283×3=687-498-13=304-(268-57)=122×5=478+19×3=989-488-191=319-12×3=404-(100+145)=101×8-346=151×5=977+771+26=5/8-2/8=61+131×7=678-(211-64)=92×(150-145)=313-22-46=385-358=353-163=479-(285+151)=499+138+16=488×2=39+(352-273)=644+634+542=388+19-281=450-315+347=362×2-315=252-(295-62)=712-(885-348)=251×3-133=508-435=859+366+617=104×(46-42)=834+765+234=180×2=234-(479-433)=380-32-34=288-94×3=565+(831-572)=180+133×5=17+510-281=4/5-1/5=614+168=488-70×6=73×(407-404)=426×9-529=791-(27+22)=172+333+981=19×5+281=282-(78+202)=152×5-552=54×9=161×(82-78)=294+(329-20)=429-331=297-54×3=516×2-221=445-(78+282)=637×(422-418)=109×7-495=922-887=871×3-305=72×4=418+(471-81)=673+492×2=256-28×2=324-85×3=835-372-251=142+392×2=178-90+78=98×6=187+85=607+100+82=14×8+147=317+326+331=218-(332-127)=465-(26+385)=897×(50-44)=873-616+877=507×(367-359)=934-(590+292)=199+247-74=132+163×4=446-(159+144)=86×5+86=997+198-594=509×(637-632)=606×8-171=786-(255+288)=342×2=271×(277-273)=278+40×5=54+836+67=222+206×3=913×(410-404)=236+231-83=149+196=353+(523-164)=877-(93+549)=128-56+133=101-(429-339)=209×4+457=41+241+442=274×(633-624)=81+160=409-153-119=919+31×3=642×2=283+(917-35)=357×3-367=107+(352-124)=97-(287-228)=208-(42+119)=941-(935-514)=395+15-152=956+412-784=532-70×4=320×2=137×(316-312)=761-(534-342)=427+(255-71)=746×(845-838)=24×2=356+(388-314)=406-27-367=368+750-595=344+952-608=338×9-310=365×2+200=585×9=465+(967-579)=212-39+196=3/6-2/6=316+(329-57)=301-115=403-154+223=130+91×6=410×2=866+705=342+320+77=309-60+232=75+184×4=706+814-366=380-55-310=698×(252-249)=701-271-253=923×(38-33)=107+585=278×3-141=786-75×4=97+357-442=947-46×7=122×2+814=312+44+436=559×4-369=174+(411-218)=391-(450-344)=619-(676-508)=201+(446-295)=986-99=254×3-286=79×7-97=83×(248-245)=318+167-55=746×2=435-(106+94)=720×3-889=1/8+7/8=4/9+2/9=422-89×4=432+942+583=333×2=493-(471-448)=45+450-358=235-(129+94)=645-165-347=376-137-77=124×7=7/9+2/9=943-196=384-175=171×(433-428)=147-122+263=149+(939-601)=919-216×4=561+(976-505)=3/7-1/7=117+472+189=231+58×7=24×3+194=986+(715-482)=39×9+705=172×(442-438)=56×6+419=309×(385-379)=478-(298+87)=787-143-28=584-200+246=792-(403+236)=358-(223+113)=108-87=755+(973-691)=467-(120+63)=807-735=720+705+807=451-(940-848)=242+575-624=882-605+501=135+(335-173)=410-15-54=218+464+126=438-78=258+74=112+(478-381)=41+(648-250)=488+(500-374)=331+120=467+769=131×8=410-(149+256)=382×2-335=142+300=3/5-1/5=189-119+134=652×6-764=147+188-104=107×8-739=386-164×2=97×4+373=853-(259+84)=65+240+442=673-119+63=457+423+13=3/4-1/4=348+(327-117)=119+202+144=281×2+307=92+321=595+686-748=605-352-246=741+227-478=345+80×6=307×(728-724)=785×2=668×(540-534)=462-172=566+538+910=214-(196-23)=57×8=397+(407-168)=610-289+994=367-(195+22)=469-42-209=397-323=777+231=48+(453-189)=187-91+321=546+128-336=2/10+5/10=105×6-355=39+(458-132)=75×6=364-56×5=260+(822-155)=351-237=601+284+450=708+911-182=369×2-179=參考答案539-235-256=48271×3=81356+34=90754+24+90=86851+44=95243×(736-732)=972860-597-233=30248+29-48=229296+85-129=252210+13-159=64374-(125+121)=128187+542+19=748912+478+800=2190806+433-306=933145×4=580193+(351-36)=508189+30-154=65465-380-52=33451-138-134=179272-43×5=57774-197-277=300490-30×6=310333×(415-412)=999713-(479-129)=363436-16-68=352303-99-198=6201+193-134=260482-10×9=392175+177-41=3112/6+3/6=5/6406-364+75=117173×5-191=674957-853=104587-277=310384-42-50=292207×8=1656197+210+339=746832×8-957=5699315+(420-340)=395884+92×3=1160663+180+111=954864+61-686=239624+(504-362)=766290+326+116=732908+996-994=910317-23×2=271310-12×9=2021/5+3/5=4/5366-(197-90)=259437+(644-635)=446898-(261+437)=200270-108×2=54426-(400-298)=324448-(45+95)=308959-883=76791+60+817=1668190+258+284=732122-106=16676-425+880=113179×8-476=156415-11×5=360363+306=669327+274=601575+(614-403)=786996+74×6=1440820+40-82=778142+25+398=56589+361=450926+208-413=721888+207+398=1493183-27×5=48572+829=1401880-(567+290)=23395×8=3160429-209+258=478264+(97-33)=328373×6-537=1701904+121×4=1388951-233×4=19301-44-19=238205-22+145=328410+528=93817+69×6=431849-(349+181)=319172+308×2=788635-(921-888)=602437+240+497=1174889-(532+59)=298410-203=207126×(133-130)=378296×6-286=1490281×2+409=971499+269+945=171374×8=592854-469=385839-71×2=697696-(992-892)=596882×5-442=3968253+173=426103+175=278213×(271-267)=852119+206=325628-(154+385)=89805+683+404=1892918-822+407=503154-29=125561×(324-315)=5049487-199=288384-(304-147)=227911+269+618=17981/8+3/8=4/8804-214-577=1386-(211-169)=44263-147+271=387941-919=22608×4-30=2402367+507-504=3701/6+2/6=3/6333-90×3=6366-51+15=30474-203-190=81629+757+385=1771264+111=375657-100-257=300274-24+49=29936+286×2=608409-132=277623×5=3115470-183-157=130166+(459-73)=552431-356+179=254941-(587+18)=336467-(901-571)=13761+215=276493×9-795=3642132×7-309=615754×3-307=1955349+289=638285-234+350=401257-113=144869+239+324=1432900+(451-285)=1066748-83=665912+(75-53)=934358×2=716396-326=70171-(137-64)=98270-(402-399)=267137+128=26588+64×4=344391-(43+285)=6319×8+46=198170×(187-184)=510244+(50-45)=249437-(224+118)=95277+(360-307)=330318+372=69059+47-32=74698+167=865219+(496-282)=433299+(920-385)=834638-513+757=88289+24+528=641118+362-228=252325+(483-232)=576101×4+458=862383-51×2=281258-43+76=291221×2=442171×4+678=1362911-143=768301+278+392=971736-(526-351)=561781-(245+81)=455352-262=90372×6-357=1875361-(493-157)=25534-397+418=555479-72×4=191176+286+27=489586-188=398301+398×2=1097422+(473-48)=847526-403+812=93597×9+112=985399-152-122=125369-280+401=49093+(837-82)=848403×(164-156)=3224272-70-89=11396×(359-354)=48065×6+324=714226-82=144175+312=487279+(450-124)=605168×5+100=940474-264+10=220170-(652-597)=115579+(941-365)=115580+92-57=115301+137=438868-299+895=1464864-(112+493)=259835+719=1554101×(202-199)=303414+360+210=984478+(514-116)=876594-447-14=133131×7=917151×(27-23)=604328-291=37500-53×4=288305-(338-311)=278467-81=386438-121×2=196987-175×5=112423-57=36692×6+566=1118980-611=369911-86+663=1488378-168+273=483624-11×7=547672-(741-519)=450965-272-166=527164×(36-32)=65669×(209-201)=552158-22×5=48491-104=387867-90×4=507324-(155+79)=90143×6-333=525839+(311-246)=904433-148+143=428681-440+64=305393-158=235830-(241+498)=91227×4-691=21768×4-258=14906-(892-173)=187220-(308-267)=179935+762-589=1108315-189-95=3195×(102-93)=855377-18×2=341426-89×4=70944-277-70=597898×7-510=5776321-17×8=185766×6=4596168×5-260=580719×(793-787)=4314763-(196-106)=673214+30×5=364312+221=533547-(609-552)=490767+197+429=1393136-43-91=2118-97+358=379435-16×5=355307×(135-132)=921356-174=182112×(82-76)=672182-115=67362-334=2846×2+52=144829-(326+204)=299891-156×4=26786+134-71=149383×2-566=200814+(545-54)=1305136×3-251=157255×3-537=228721×(505-500)=3605140×(85-80)=700357+406-339=424421-334+53=140180+125+338=643424-46×5=194796×2-425=116731+113=144378+89-226=24117+284+101=402210+264-67=40759+71+636=766131×(77-70)=917367-286-28=53239-52-91=96115×5-173=402713+394=1107440-(364-120)=1966/9+2/9=8/9307-(40+209)=58425+(500-190)=735325-81-11=23383×(164-156)=664466+99=565296-71-169=56358-(82+269)=7299-165=134402-175-165=62114+42=156451×2=902559-473=86588×7=4116473+774+171=1418998×7=6986120-53+498=565507-345+899=1061512-(257+183)=72850+(578-523)=905304×(971-966)=15204/6-1/6=3/6491-(239+68)=184912-40×5=712950-233×3=251586-556=30165+317+401=883579-15+67=631456-(484-361)=333267+25-156=136924-(739-475)=660905+47×6=1187269×8=21526/8-1/8=5/8335-(393-131)=73119+111+40=270424-(33+193)=198440×2+247=112747+(320-136)=231272+242+482=996585+72-171=486386-35=35190×2=180733-(297+351)=85296-147+16=165497-374+228=351114×4+324=78040+424+365=829731×7-227=4890609×(601-598)=182714×5+109=179909-839+205=275733-104×6=109811-793=18372-27-15=330433-86×2=261169+606=775563+136×7=151565×9-462=12348+795-315=528321×2=642129×2=258357-(500-446)=303298×(355-352)=894424-(442-58)=40133×5=665749-96+478=1131107×(462-457)=535462-(500-51)=13795+576+453=1824646-71×8=78387-(297-139)=229388+(519-193)=7147/10-2/10=5/10417×8=3336472-(216+159)=97195-74=121590×6-855=2685669+567-572=664178×4+577=1289296-95×2=106799-26×7=617438-149-284=5126-50+230=306290-(115-60)=235149+469=618452+40-15=477367+83×4=699626+851+593=2070874×(519-515)=3496825-43×6=567605-36×4=461453-(94+143)=216932-(86+667)=179129×3=387669-543=126497-256=241411-(76+257)=78218+290=508760-24-447=289783+224-609=398184-59×3=7293-(346-240)=187374-108+176=442389-83×4=5789+856-109=836215+78=293455-237+149=367171+(490-237)=424154×5-492=278425-(143-40)=322260-(495-392)=157891×3=267366+150×3=516426-71-329=26117×(198-195)=351281-(659-615)=237872+668+679=2219738-625=113447-(128+184)=135102+190=292158+53+706=91766×7-99=36324×5+399=519827-575-108=14463×8-316=188103+342-174=271353+140=49375+42=117240×2+129=60997+85=182954×(874-867)=6678327-191+228=364287+129=416364+362=726519+(964-569)=914498×8=3984285-207=786/8-2/8=4/8456×(323-316)=3192299+434=733888-498-221=169402+317=719348-94+88=342990+368=135815+158×3=489462-69-276=117442×2-349=535629-(170+199)=26091×4=36467-40=2711×(84-75)=9968×7=476317-53-71=193271×2-424=118362-46×5=132963-455+354=862621+589-63=1147468-198=270106+174=280279-(431-278)=126534×4-540=1596442+205+167=814595×6-186=3384791-563+892=1120968+566=1534184×(214-209)=920368-(377-98)=89752-77-373=302585×3-910=845441×2-804=78678-(421-208)=465338×6=2028624-151=47359-(300-245)=4107×5+761=1296893×7=6251700-404-46=250360×(102-94)=288097×(47-39)=776576×7=4032341+(362-349)=354871-(710-115)=27644+(459-299)=204272+143=415757-(104+206)=447135+327+167=629819-416-271=132172+201-165=208492+27+360=879569-335+478=712258-(247-139)=150320+937=1257256×7=1792492-19+768=1241341-(323+18)=0807×(490-487)=2421907+831-468=1270117×6+30=732274-26×9=40401-85=316744-174-176=394338-202+140=276455-(135-57)=377841×6=5046144+(692-680)=156351×2+37=739444-25×3=369468-60-250=158616×9-863=4681344+418-134=628928-770+684=842659-(599-521)=58142×8=336922×5=4610272×(183-180)=816928×3=2784258-(105+30)=123237+177×2=591114-(96-91)=109418-(198-197)=417696-(207+39)=4503/8-2/8=1/8561×8-785=3703578-(149+90)=339455-352=103118-18-26=74110+256-18=348419×2+100=938980-536-203=241263+(478-370)=371842+281=1123537×2=1074961-(29+349)=583639-252+684=1071946-99-740=107565-340+786=1011249-(498-420)=17153+43-49=47160×(99-94)=800885-507-53=32546×5-218=12840+745+117=1702937-(85+278)=574236-(135+42)=59973-821=152997-(543+326)=128122+(428-126)=424498-(211+196)=91395+99-178=3163/8+2/8=5/8794+762=15563/6+2/6=5/6393-80+638=951399-(92+200)=107336×3-195=8134/6-2/6=2/680×(248-244)=320913×4=3652186+254=440941-176×5=6198+115×2=32823+307-132=198574-476+33=131558-217-210=131115+298=413222+292=51425×5=125763-196-350=217287-39×5=9270+336-312=94401-180+385=606753-21×6=627120+570+133=823953×3=2859284×2-84=484124-(668-606)=62309-203=106159+61=220482-(86-32)=428280×(172-169)=84078+287-87=27869+293-166=196669+990-351=130894×(149-146)=282936-439=49763×6=378470+681-891=260321×6=1926392+(407-255)=544104+277=381806-621=185469-29×9=208666-59×9=135460×2=920479-(122+150)=2071/8+4/8=5/8475+93×3=754260-48×3=116399-15×9=26477×(227-223)=308472+(326-278)=520493-(96+393)=4218×4-757=115428+156+309=893333-71-47=215308-15×8=188283×3=849687-498-13=176304-(268-57)=93122×5=610478+19×3=535989-488-191=310319-12×3=283404-(100+145)=159101×8-346=462151×5=755977+771+26=17745/8-2/8=3/861+131×7=978678-(211-64)=53192×(150-145)=460313-22-46=245385-358=27353-163=190479-(285+151)=43499+138+16=653488×2=97639+(352-273)=118644+634+542=1820388+19-281=126450-315+347=482362×2-315=409252-(295-62)=19712-(885-348)=175251×3-133=620508-435=73859+366+617=1842104×(46-42)=416834+765+234=1833180×2=360234-(479-433)=188380-32-34=314288-94×3=6565+(831-572)=824180+133×5=84517+510-281=2464/5-1/5=3/5614+168=782488-70×6=6873×(407-404)=219426×9-529=3305791-(27+22)=742172+333+981=148619×5+281=376282-(78+202)=2152×5-552=20854×9=486161×(82-78)=644294+(329-20)=603429-331=98297-54×3=135516×2-221=811445-(78+282)=85637×(422-418)=2548109×7-495=268922-887=35871×3-305=230872×4=288418+(471-81)=808673+492×2=1657256-28×2=200324-85×3=69835-372-251=212142+392×2=926178-90+78=16698×6=588187+85=272607+100+82=78914×8+147=259317+326+331=974218-(332-127)=13465-(26+385)=54897×(50-44)=5382873-616+877=1134507×(367-359)=4056934-(590+292)=52199+247-74=372132+163×4=784446-(159+144)=14386×5+86=516997+198-594=601509×(637-632)=2545606×8-171=4677786-(255+288)=243342×2=684271×(277-273)=1084278+40×5=47854+836+67=957222+206×3=840913×(410-404)=5478236+231-83=384149+196=345353+(523-164)=712877-(93+549)=235128-56+133=205101-(429-339)=11209×4+457=129341+241+442=724274×(633-624)=246681+160=241409-153-119=137919+31×3=1012642×2=1284283+(917-35)=1165357×3-367=704107+(352-124)=33597-(287-228)=38208-(42+119)=47941-(935-514)=520395+15-152=258956+412-784=5845