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419-155+753=973-12=510-(174+95)=362-(203+15)=422-52×7=918-170×2=308+143=657×9-953=529×(770-764)=966-(805-217)=565×5=282-58=2/4-1/4=304×(407-404)=814-(422-365)=91+148×5=411-50=853-(910-775)=3/9-1/9=427×8=811×7-845=485-(203-72)=118×(448-440)=573-(61-31)=507-(494-461)=812-306=36×4=18×5=667+381-615=332+306=136+296-347=406-62×3=703-599=444-(456-245)=920×3=88+893-152=283+82=714+(874-656)=293-98=913×8=900×2=542+147×4=75+198=472-21×3=500-117-338=511-(697-265)=346-(24+38)=165×5=362-29-193=474-18×2=49+(297-140)=843-555+640=637-377+185=372-144=431+(228-115)=920-56×3=458-182=318-178-85=340×2-69=568+721+493=288×6-838=243+229-64=123+127-51=370-(95+50)=149×4=172+224=325-(48+217)=58-53+375=296+(268-17)=442×2+105=73+919-796=299-176=780-353×2=138+(486-133)=201+292-15=319+116×5=427-204+140=483-(368-305)=824-30×2=70×3+877=515+437-480=198×(413-409)=876-812=575×(912-904)=195-(184-56)=580+36×2=624-(480-12)=180+165=493-(242+217)=380-(137-62)=369-38=372×2=647-255-31=375-31=165+141=11+303+597=115×5-446=101+232-113=341-25×2=84-43-34=954-(50+643)=995+(235-227)=392+244=692-225+52=850-330-221=374+398=328-116=243+(663-525)=918-(455+343)=533×2-577=231+233+24=836-(122+646)=483-173-42=455+(996-823)=771-(955-607)=359-290+414=345×2=97×6=126+(449-360)=456+449×2=337×2-485=306-43×5=289-(247-239)=231+97-173=236-(187-102)=855-(152+633)=101×6=805+890+295=101×4-264=815-(525+217)=54+630+206=181+992-873=326×3-875=506×7-719=221+(315-47)=326-292=395×9=374-208=1/5+2/5=4/7+2/7=4/10+6/10=304+309+333=422×7=80+108=927+755-726=296+524-283=406-(985-777)=937×5=211-46+65=256+54-289=120×(169-164)=950-66×3=202+(468-305)=836-446+393=249×7-950=227×2-305=844-83+247=242+(503-298)=224-(16+156)=112+104=482-295+977=650-135+233=415-342=372+(241-68)=878×(376-372)=483-183-28=10+223×4=175×2-152=35+128-63=412×(444-438)=463-11-50=818+215×3=231+169-233=24×(103-96)=4/7-3/7=662×4=128-89-30=13×(41-32)=951-(864-792)=154+(380-112)=311+(185-95)=326+166=414+170×3=358+(441-43)=487×(478-469)=27+552+229=316+(580-297)=789-(252-87)=324-238+164=33×5=497-137×2=703×6-14=817×2-854=354-254=446-256=280+(246-76)=489-(278+177)=494×8-559=757-(353+125)=56×(299-296)=573+198×4=153×5=940-(277+183)=971×7=400-120+682=63+200=960+385+175=962-705+493=882-80=174+71-32=215+160=474-(110+255)=416×4=206-10+577=649×4-530=869-91×9=312+855-797=386-(415-242)=70×(143-134)=899-434+641=247-(467-252)=460-265+160=180×4=484-26=950-58-202=448×(776-769)=261+(336-194)=181-(430-363)=366-18-269=43+152+270=95-74+323=687+(930-787)=456+(350-156)=849-236=911-(983-925)=436×5-887=571+(632-11)=19×6+990=159+(363-233)=422+580-988=218-25-58=499-(57+190)=518×9-833=463-89-280=876-(376+395)=494-(616-483)=447+213×2=94×5=586+126+174=364+(311-125)=259+171+593=633-399=634-448+236=318×2=638+785-594=308×2-600=232×(703-700)=69+431×2=234-16×4=801-(136+329)=105×6-305=164+214+180=352-275=662-547=706-91+107=232+85-163=154+178+123=492-(293-18)=104+547+116=919+409×2=843-(358+312)=591-467-11=224×2+291=780-(315+456)=494-160-246=296-13×2=506-204+567=68×(318-315)=143+53=98×2=463+268×2=375-(156-108)=316-127=411-340+34=324-(746-428)=623+360=977-(621+188)=74+720+892=125×8-178=387+(338-259)=406+879-190=69×2=37×2=117-116+473=703-(823-370)=394×2-133=381-26×9=38×9+123=43+154=415-286+854=205×2-240=266×2+322=954-461-342=479-171=596+884-953=793+298=407-364-39=385+(285-241)=3/5-1/5=153+475+70=149×4+639=253×2-271=333-(368-111)=54+12+710=792+450=929-232+77=359-(239-63)=271-(107+81)=196×3=236+42=304+436×2=82×5+877=398-(852-777)=336+174=238-30+122=838-(481+135)=838×(354-345)=340-293=23+24=579×2-873=27×(56-48)=246+(421-177)=22×2-37=313-(110+45)=723+(693-140)=951+(609-33)=461-70×5=715×9=217+135=828+(544-25)=417-23×5=799-(669-272)=240+716=1/5+3/5=91+274=54+102×6=112+162+602=501×3-962=265×2=458-334+370=850-225-259=119×4-369=853-734+299=348-(234+20)=69+281+606=461-117=865-43-396=354-15×4=131+104+324=572-416+515=436-32-215=312-31×7=862×6-730=156+54×2=30×9+621=582-280=795-297=383-(402-350)=201+60-242=419+703=400-(206+104)=465-365+205=3/7-2/7=501-187=442-(78+190)=311-273=370-(218+19)=843-226×2=342+(638-306)=52×9=165×6-85=307×4-183=63×(85-78)=122×3=227-106-120=432-137+143=482-(136+110)=70+49=373+331+485=437×2+78=137+43×8=95+(902-113)=654-491-27=1/6+4/6=187+167×3=354+240+903=668×(462-454)=200-67+35=141×2=715+431=404-(250+152)=879-425+350=351-77=905-310×2=38×(315-306)=289-(143+34)=22+(178-19)=156×3+112=446-400+389=478-10×7=71+175=415-(939-791)=228+829-912=323+(328-197)=191+470=482×2-885=703+(890-474)=392-224=208×3=37×9=21×2=586+(794-59)=266-(309-171)=731-19-165=454-430+286=51×5-186=738-352-17=171+122×3=454-84+71=640-38×3=782-230=2/3-1/3=908-308-300=275-34×5=21+464-60=303-67-213=408×3=281×(425-422)=467-44×3=537+27+182=472-(281+26)=190-38×5=734-330-359=5/7+2/7=222+65+276=229+173=369-82×4=4/7-2/7=726×(680-672)=963+493=267-(248-86)=532+(256-40)=97-(174-127)=201+(209-22)=147×(379-376)=350-28-201=254-(100+92)=459-(469-189)=369-162-106=173-(52+24)=524-351-89=242×4-128=507-48-335=252-(480-375)=646-(328-144)=246+625+455=155×5-531=688-95×6=205×7-455=430-(303-23)=123×6-25=578×(256-248)=246-(168+40)=187-81×2=703×(152-144)=621-547+20=436+707+745=404-377=217×2+289=606+194=83×3+86=645×4=221×3-311=349+10+529=573×(977-970)=359×(38-32)=459×2+543=189×2+165=480-56=625-535-45=118×7=122×2=327+388+185=391-57×2=908+59×8=4/8+2/8=61+274=522-77×5=719+456=404-10×4=412-(158+92)=402-(322+63)=435+292=921-161=738×7-301=723-109×2=504+758-572=80×8+44=755×8-604=494×2-41=76×9+147=72+(365-156)=187+20×3=734×6-421=322-(431-113)=669-450=462-37×6=730×(204-195)=49×(491-488)=153-153+929=343-(62+83)=202+(202-174)=419+761-725=370-125+204=487+51×3=893-540-289=133-121=152+190×5=339×(824-817)=405-(180+95)=516+137+54=268+760+861=988×5=95×(87-82)=56+288=119+(434-157)=443×4-114=865-175×2=124+283=382-95=169-48-13=761-417+767=951-406-335=518+96-449=950×4=313+(903-46)=632-134-339=672-(974-743)=303+446+238=127+53=231-(137-36)=888-636-17=916×(806-801)=393×9=163+539=113×3+291=155-22-93=457×(900-897)=369+980+945=686+137×7=671-(397+31)=281×(357-354)=714-(74-53)=939+544-617=161×7=29×(257-253)=154×(123-118)=236+648+278=103+153=838-(320-319)=524+114=1/3+2/3=379×8-490=485-475=654-(255+46)=278-127+230=121+50=10+811+146=400+(405-156)=33×9-235=152+(434-52)=977+667-957=75×2=391-51-226=977-(122+469)=15×4=460×2=2/8+4/8=266+208=344-77=297-32×5=174+(309-78)=62+13=639-106-257=986-245=37+903-128=849-274=557+924-862=409+268-501=105×2+413=370+(848-699)=646-81+289=83+51=648+251=348+312×2=630-(91+161)=486-35×7=327+917-865=353-(360-316)=333×8-329=739-(950-614)=45+(694-75)=786+720+101=249+128+167=13×4=305-150×2=62×7+372=26×9+99=354-292+186=715-(367+310)=65+374-325=553-45×2=286+(545-222)=457-175+186=214×7-625=224×4+703=30×(957-952)=384+95-146=64×5+276=443-322+103=194+634+369=393+933-928=380+79=912-369=562-94×5=342-169=226+416=817×3-224=517-99=1/4+2/4=188+72=878+(69-17)=111×(363-358)=373-338-26=380×4-869=438+484+252=124×6=105×(139-136)=177×(72-68)=458-(133+128)=299×2=347-(152+156)=540-39-36=469+(413-121)=148-42+349=288+57-302=404×5-888=4/8-1/8=995-10×8=435-207=469-31-318=142×(75-71)=939-209-571=275-33×8=962-77×6=595-532+290=166+190-344=85-37=892+529-289=280+(929-598)=368+241=813-128×2=302-183+233=947-484=281-(39+156)=681+688+809=130×5-457=744-(632-74)=882-18+181=390×2-660=930-105-583=490-357+94=58×8+238=139×7=705-668=154+307-132=167×5-168=880+370=34×(357-350)=68-49=228-(337-235)=245×2=96-20×3=17×7=364-198-33=886-(560-74)=396+44-345=449-17-231=109+326+451=637-230-192=133+339-132=487-415+337=782-485-78=469-285-154=274+988-739=103+287-262=768-121×2=410-80=706-(116+466)=422-332-52=560+251-542=612×4=146-66-68=380+261+114=519-106+356=332-(473-168)=797-25×5=830×(283-277)=157×4+935=655×8=534×8-757=893×(25-18)=296-59×5=132×(319-312)=131+232=957×6=24+113+215=507-(198+33)=752-(464-286)=48-(40-31)=15+277+198=644+611+114=116+273-182=122+727+487=395-(213+68)=198-163=553×3=93×8+196=89+16×2=100+122×4=688×(453-447)=330+203+79=314-(267+45)=404+(370-102)=327+732+504=334-(154+141)=267-172+292=350+228=354+27-347=320×3-657=724-(22+577)=839+186+597=905-32×6=486-45=3/8-2/8=130+141=100+299+46=682-18×6=411-(223+125)=787+777-295=69×(365-359)=735-(720-651)=118+321×3=353-(120+232)=123×8-430=268-161+293=491-(294-124)=398-276-52=70+259-188=172+198×3=66×8+238=160+255-371=838×(30-24)=471-201=146×2=294×(13-10)=363-(446-302)=150×5=649+(303-31)=250+93=410+51-213=827×(862-859)=1/8+6/8=873-151-277=418-409+11=41×7+257=959-364-164=192×5-672=225+225-344=157×(165-162)=408-87×2=300-178-81=290×(432-426)=366×2-62=759+368+687=658+41+118=418-(402-123)=349+38-96=640-(61+277)=52×4+539=836×(363-356)=728+194=2/5-1/5=708+20+170=649-276×2=796-148×2=2/7-1/7=811-94-286=868-181+78=762×(751-747)=190+(330-235)=530-(313+78)=6/10-4/10=141+430+511=275+280+359=310-49×2=193×3-215=87×(21-17)=192-108+49=149+403×2=264-203=88×(103-95)=613+423-364=111+533=201-111=389-306=216-180+53=495+(177-34)=938+(888-111)=632×8=614+(688-376)=61×(303-294)=192×(427-424)=179+970+483=277+46-263=205+159-306=934-(417-344)=617-(404+96)=72+129=385+467+105=26+265+26=915+687+727=625-(711-666)=167-149+448=131-20×6=722+(753-269)=119+233-121=350-96×3=377-62×5=369+102-219=135+180=487-13-173=834×(524-515)=20×9+365=864-(65+193)=127+(846-206)=283-82-82=354+849+698=869+166+629=4/10+3/10=102-(443-414)=366-40×5=715+(844-331)=565-22×6=参考答案419-155+753=1017973-12=961510-(174+95)=241362-(203+15)=144422-52×7=58918-170×2=578308+143=451657×9-953=4960529×(770-764)=3174966-(805-217)=378565×5=2825282-58=2242/4-1/4=1/4304×(407-404)=912814-(422-365)=75791+148×5=831411-50=361853-(910-775)=7183/9-1/9=2/9427×8=3416811×7-845=4832485-(203-72)=354118×(448-440)=944573-(61-31)=543507-(494-461)=474812-306=50636×4=14418×5=90667+381-615=433332+306=638136+296-347=85406-62×3=220703-599=104444-(456-245)=233920×3=276088+893-152=829283+82=365714+(874-656)=932293-98=195913×8=7304900×2=1800542+147×4=113075+198=273472-21×3=409500-117-338=45511-(697-265)=79346-(24+38)=284165×5=825362-29-193=140474-18×2=43849+(297-140)=206843-555+640=928637-377+185=445372-144=228431+(228-115)=544920-56×3=752458-182=276318-178-85=55340×2-69=611568+721+493=1782288×6-838=890243+229-64=408123+127-51=199370-(95+50)=225149×4=596172+224=396325-(48+217)=6058-53+375=380296+(268-17)=547442×2+105=98973+919-796=196299-176=123780-353×2=74138+(486-133)=491201+292-15=478319+116×5=899427-204+140=363483-(368-305)=420824-30×2=76470×3+877=1087515+437-480=472198×(413-409)=792876-812=64575×(912-904)=4600195-(184-56)=67580+36×2=652624-(480-12)=156180+165=345493-(242+217)=34380-(137-62)=305369-38=331372×2=744647-255-31=361375-31=344165+141=30611+303+597=911115×5-446=129101+232-113=220341-25×2=29184-43-34=7954-(50+643)=261995+(235-227)=1003392+244=636692-225+52=519850-330-221=299374+398=772328-116=212243+(663-525)=381918-(455+343)=120533×2-577=489231+233+24=488836-(122+646)=68483-173-42=268455+(996-823)=628771-(955-607)=423359-290+414=483345×2=69097×6=582126+(449-360)=215456+449×2=1354337×2-485=189306-43×5=91289-(247-239)=281231+97-173=155236-(187-102)=151855-(152+633)=70101×6=606805+890+295=1990101×4-264=140815-(525+217)=7354+630+206=890181+992-873=300326×3-875=103506×7-719=2823221+(315-47)=489326-292=34395×9=3555374-208=1661/5+2/5=3/54/7+2/7=6/74/10+6/10=1304+309+333=946422×7=295480+108=188927+755-726=956296+524-283=537406-(985-777)=198937×5=4685211-46+65=230256+54-289=21120×(169-164)=600950-66×3=752202+(468-305)=365836-446+393=783249×7-950=793227×2-305=149844-83+247=1008242+(503-298)=447224-(16+156)=52112+104=216482-295+977=1164650-135+233=748415-342=73372+(241-68)=545878×(376-372)=3512483-183-28=27210+223×4=902175×2-152=19835+128-63=100412×(444-438)=2472463-11-50=402818+215×3=1463231+169-233=16724×(103-96)=1684/7-3/7=1/7662×4=2648128-89-30=913×(41-32)=117951-(864-792)=879154+(380-112)=422311+(185-95)=401326+166=492414+170×3=924358+(441-43)=756487×(478-469)=438327+552+229=808316+(580-297)=599789-(252-87)=624324-238+164=25033×5=165497-137×2=223703×6-14=4204817×2-854=780354-254=100446-256=190280+(246-76)=450489-(278+177)=34494×8-559=3393757-(353+125)=27956×(299-296)=168573+198×4=1365153×5=765940-(277+183)=480971×7=6797400-120+682=96263+200=263960+385+175=1520962-705+493=750882-80=802174+71-32=213215+160=375474-(110+255)=109416×4=1664206-10+577=773649×4-530=2066869-91×9=50312+855-797=370386-(415-242)=21370×(143-134)=630899-434+641=1106247-(467-252)=32460-265+160=355180×4=720484-26=458950-58-202=690448×(776-769)=3136261+(336-194)=403181-(430-363)=114366-18-269=7943+152+270=46595-74+323=344687+(930-787)=830456+(350-156)=650849-236=613911-(983-925)=853436×5-887=1293571+(632-11)=119219×6+990=1104159+(363-233)=289422+580-988=14218-25-58=135499-(57+190)=252518×9-833=3829463-89-280=94876-(376+395)=105494-(616-483)=361447+213×2=87394×5=470586+126+174=886364+(311-125)=550259+171+593=1023633-399=234634-448+236=422318×2=636638+785-594=829308×2-600=16232×(703-700)=69669+431×2=931234-16×4=170801-(136+329)=336105×6-305=325164+214+180=558352-275=77662-547=115706-91+107=722232+85-163=154154+178+123=455492-(293-18)=217104+547+116=767919+409×2=1737843-(358+312)=173591-467-11=113224×2+291=739780-(315+456)=9494-160-246=88296-13×2=270506-204+567=86968×(318-315)=204143+53=19698×2=196463+268×2=999375-(156-108)=327316-127=189411-340+34=105324-(746-428)=6623+360=983977-(621+188)=16874+720+892=1686125×8-178=822387+(338-259)=466406+879-190=109569×2=13837×2=74117-116+473=474703-(823-370)=250394×2-133=655381-26×9=14738×9+123=46543+154=197415-286+854=983205×2-240=170266×2+322=854954-461-342=151479-171=308596+884-953=527793+298=1091407-364-39=4385+(285-241)=4293/5-1/5=2/5153+475+70=698149×4+639=1235253×2-271=235333-(368-111)=7654+12+710=776792+450=1242929-232+77=774359-(239-63)=183271-(107+81)=83196×3=588236+42=278304+436×2=117682×5+877=1287398-(852-777)=323336+174=510238-30+122=330838-(481+135)=222838×(354-345)=7542340-293=4723+24=47579×2-873=28527×(56-48)=216246+(421-177)=49022×2-37=7313-(110+45)=158723+(693-140)=1276951+(609-33)=1527461-70×5=111715×9=6435217+135=352828+(544-25)=1347417-23×5=302799-(669-272)=402240+716=9561/5+3/5=4/591+274=36554+102×6=666112+162+602=876501×3-962=541265×2=530458-334+370=494850-225-259=366119×4-369=107853-734+299=418348-(234+20)=9469+281+606=956461-117=344865-43-396=426354-15×4=294131+104+324=559572-416+515=671436-32-215=189312-31×7=95862×6-730=4442156+54×2=26430×9+621=891582-280=302795-297=498383-(402-350)=331201+60-242=19419+703=1122400-(206+104)=90465-365+205=3053/7-2/7=1/7501-187=314442-(78+190)=174311-273=38370-(218+19)=133843-226×2=391342+(638-306)=67452×9=468165×6-85=905307×4-183=104563×(85-78)=441122×3=366227-106-120=1432-137+143=438482-(136+110)=23670+49=119373+331+485=1189437×2+78=952137+43×8=48195+(902-113)=884654-491-27=1361/6+4/6=5/6187+167×3=688354+240+903=1497668×(462-454)=5344200-67+35=168141×2=282715+431=1146404-(250+152)=2879-425+350=804351-77=274905-310×2=28538×(315-306)=342289-(143+34)=11222+(178-19)=181156×3+112=580446-400+389=435478-10×7=40871+175=246415-(939-791)=267228+829-912=145323+(328-197)=454191+470=661482×2-885=79703+(890-474)=1119392-224=168208×3=62437×9=33321×2=42586+(794-59)=1321266-(309-171)=128731-19-165=547454-430+286=31051×5-186=69738-352-17=369171+122×3=537454-84+71=441640-38×3=526782-230=5522/3-1/3=1/3908-308-300=300275-34×5=10521+464-60=425303-67-213=23408×3=1224281×(425-422)=843467-44×3=335537+27+182=746472-(281+26)=165190-38×5=0734-330-359=455/7+2/7=1222+65+276=563229+173=402369-82×4=414/7-2/7=2/7726×(680-672)=5808963+493=1456267-(248-86)=105532+(256-40)=74897-(174-127)=50201+(209-22)=388147×(379-376)=441350-28-201=121254-(100+92)=62459-(469-189)=179369-162-106=101173-(52+24)=97524-351-89=84242×4-128=840507-48-335=124252-(480-375)=147646-(328-144)=462246+625+455=1326155×5-531=244688-95×6=118205×7-455=980430-(303-23)=150123×6-25=713578×(256-248)=4624246-(168+40)=38187-81×2=25703×(152-144)=5624621-547+20=94436+707+745=1888404-377=27217×2+289=723606+194=80083×3+86=335645×4=2580221×3-311=352349+10+529=888573×(977-970)=4011359×(38-32)=2154459×2+543=1461189×2+165=543480-56=424625-535-45=45118×7=826122×2=244327+388+185=900391-57×2=277908+59×8=13804/8+2/8=6/861+274=335522-77×5=137719+456=1175404-10×4=364412-(158+92)=162402-(322+63)=17435+292=727921-161=760738×7-301=4865723-109×2=505504+758-572=69080×8+44=684755×8-604=5436494×2-41=94776×9+147=83172+(365-156)=281187+20×3=247734×6-421=3983322-(431-113)=4669-450=219462-37×6=240730×(204-195)=657049×(491-488)=147153-153+929=929343-(62+83)=198202+(202-174)=230419+761-725=455370-125+204=449487+51×3=640893-540-289=64133-121=12152+190×5=1102339×(824-817)=2373405-(180+95)=130516+137+54=707268+760+861=1889988×5=494095×(87-82)=47556+288=344119+(434-157)=396443×4-114=1658865-175×2=515124+283=407382-95=287169-48-13=108761-417+767=1111951-406-335=210518+96-449=165950×4=3800313+(903-46)=1170632-134-339=159672-(974-743)=441303+446+238=987127+53=180231-(137-36)=130888-636-17=235916×(806-801)=4580393×9=3537163+539=702113×3+291=630155-22-93=40457×(900-897)=1371369+980+945=2294686+137×7=1645671-(397+31)=243281×(357-354)=843714-(74-53)=693939+544-617=866161×7=112729×(257-253)=116154×(123-118)=770236+648+278=1162103+153=256838-(320-319)=837524+114=6381/3+2/3=1379×8-490=2542485-475=10654-(255+46)=353278-127+230=381121+50=17110+811+146=967400+(405-156)=64933×9-235=62152+(434-52)=534977+667-957=68775×2=150391-51-226=114977-(122+469)=38615×4=60460×2=9202/8+4/8=6/8266+208=474344-77=267297-32×5=137174+(309-78)=40562+13=75639-106-257=276986-245=74137+903-128=812849-274=575557+924-862=619409+268-501=176105×2+413=623370+(848-699)=519646-81+289=85483+51=134648+251=899348+312×2=972630-(91+161)=378486-35×7=241327+917-865=379353-(360-316)=309333×8-329=2335739-(950-614)=40345+(694-75)=664786+720+101=1607249+128+167=54413×4=52305-150×2=562×7+372=80626×9+99=333354-292+186=248715-(367+310)=3865+374-325=114553-45×2=463286+(545-222)=609457-175+186=468214×7-625=873224×4+703=159930×(957-952)=150384+95-146=33364×5+276=596443-322+103=224194+634+369=1197393+933-928=398380+79=459912-369=543562-94×5=92342-169=173226+416=642817×3-224=2227517-99=4181/4+2/4=3/4188+72=260878+(69-17)=930111×(363-358)=555373-338-26=9380×4-869=651438+484+252=1174124×6=744105×(139-136)=315177×(72-68)=708458-(133+128)=197299×2=598347-(152+156)=39540-39-36=465469+(413-121)=761148-42+349=455288+57-302=43404×5-888=11324/8-1/8=3/8995-10×8=915435-207=228469-31-318=120142×(75-71)=568939-209-571=159275-33×8=11962-77×6=500595-532+290=353166+190-344=1285-37=48892+529-289=1132280+(929-598)=611368+241=609813-128×2=557302-183+233=352947-484=463281-(39+156)=86681+688+809=2178130×5-457=193744-(632-74)=186882-18+181=1045390×2-660=120930-105-583=242490-357+94=22758×8+238=702139×7=973705-668=37154+307-132=329167×5-168=667880+370=125034×(357-350)=23868-49=19228-(337-235)=126245×2=49096-20×3=3617×7=119364-198-33=133886-(560-74)=400396+44-345=95449-17-231=201109+326+451=886637-230-192=215133+339-132=340487-415+337=409782-485-78=219469-285-154=30274+988-739=523103+287-262=128768-121×2=526410-80=330706-(116+466)=124422-332-52=38560+251-542=269612×4=2448146-66-68=12380+261+114=755519-106+356=