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294-175+227=336-240+153=282+183+465=317-304+390=496-46×5=22×(267-261)=323-(168+12)=446-(387-315)=851-(74+424)=497-350-88=497-123-54=889-349×2=802-168-552=945-625+585=245-(181-21)=246+218=47+507+379=923-167+958=255-56=182+304=49×5=77×7=309×6-897=944+74-91=756×(342-335)=910-(693+31)=371-366+176=953+348+910=479-(47+177)=3/7-2/7=996-827-162=621-503=267-62×4=125×6-392=88+319=326-266+235=930+(948-336)=350+74=1/5+3/5=400-194=462-172-218=542-26×4=486-(141-72)=900-(151+372)=439+(737-270)=985-(39+859)=259-120+162=378+198-203=238+26-165=388-304=331-(58+36)=809-152×3=477-(750-521)=54+321=48×5-193=236-(280-159)=431-90×3=136-101+448=15×(360-357)=751+484-195=72×8-443=213×(540-532)=440-240+30=152+222+595=1/8+5/8=184+71-90=333×(863-856)=811+925=859×9-718=834+716-192=616-(954-629)=389-(403-316)=190×3-469=811+87×2=761+929=208-64×2=190+(438-414)=83×(334-328)=498-358=230-171-34=894×(539-536)=66×3=146+88+129=380-(336-93)=734-215+903=467-278+233=253+73-124=101+266=447-(134+280)=70+89=376-172-167=493-44-85=166+225-13=618×6=466+237=12×3+434=327+(131-102)=283×9=301+44-42=54+333+287=636+323=166+465=227+674+867=319+50×6=429-(496-494)=92×(422-417)=425+459+669=959-32+653=639-19×6=498-(14+361)=367-31×5=474-230+205=258-46-155=21×7=485-(166+191)=455-(366-213)=512+391+741=33×7=169-109+375=982×2=265-(123+70)=997+171+488=160+37=264-56×4=643-(451+25)=899-311-423=200-30×4=69×3+193=863-320+938=22×5=585×5-519=240+34+66=442-136-210=583×5=2/9+7/9=318+87=236-12×9=908-470=658-286-233=93+343+634=816+311+274=81+130+620=643-(682-665)=301×2=126×(63-59)=677-179+665=420-(354-252)=567×4=435+(897-553)=18+308-133=410-(59+282)=90-33+370=688-(147+82)=498+(147-26)=977×(556-551)=145×(969-964)=329-53+292=458-381=284+188×3=18×(352-349)=361-84-40=463-105×3=456-176×2=305×(22-17)=53+270-144=778-619=144×2=570+544-456=884-637=7/9-1/9=415+(442-38)=148+287×3=474+156×5=938-105+927=103+106+425=357-33×7=193+98-146=212×(26-22)=736-612=577-(689-120)=449-(107+271)=35×(241-234)=613×(265-260)=197×5-444=26×(98-95)=680-(137+410)=783+(931-679)=108+47×2=360+138-280=166+(320-147)=69×(255-250)=429-150-89=267+93×7=91×(103-95)=571-175×2=59×8-444=26+17+333=2/4-1/4=476-11×8=117+155=2/7+3/7=58+136×6=790-142+622=437-95×3=736+55×2=112+221=420×(882-875)=316-(154-12)=228×2-396=559×2-694=497-(323+109)=32+372+477=833+113+30=689-(520+14)=79-(229-186)=930-96=116×2+407=754-300=676-(245+17)=594-96=11×5+57=112-54=91+130+235=102×(845-841)=466×5-918=409-(280+45)=159×2+381=260-(327-224)=723-(638-327)=861×6=982×6=197×5-18=222-125+42=708-48×9=689+260+364=181-57=884×5-188=705×9-393=500-(259+218)=81-75+399=868+205-111=181×2+769=896+344=460×4-178=281-183=750-(204+218)=584-136=305-(155+48)=594-290=452×2-318=4/7-1/7=672×3=466-(277+181)=350×6-200=385-192+815=366-83-238=67+369-310=868+198-806=662-(370-297)=421-13×4=67+947-547=461-80-163=929-(294-85)=657-267=152+406=78×5-47=175+(202-123)=273×2=905×9-998=247-11×7=167+148-308=676+609+181=44×7=57+(491-245)=311×3=172×4-427=123+158-169=393-(108-44)=61×(433-426)=705×4-279=17+845+597=438-410=77×6+667=444×8-42=369-61×5=303+623-200=261-171=65×5=955-184×4=348-327=428-(974-884)=175×3+318=680-184+713=794-93×2=706-160+697=84-27=382+(714-478)=662+(704-564)=159×7-251=7/8-1/8=7/10+2/10=667+309=954-(103+186)=379-55+310=906-294×3=489-281-203=17×7+382=377+106=24×9-128=439-59=644-(226+335)=993-(327+463)=245+304+449=88×(653-649)=533-(194+146)=287+604+782=323-26=423-(446-435)=463+313=412-40=855-144+804=183×5=49×(387-379)=357×(718-714)=419+80=85-34+681=207×3+711=991-758-18=348-(121+49)=186+(810-194)=422+(109-86)=499-(422-111)=121×4=116+277×3=118×4=931+296-378=458×2+624=270-18×8=243×2-330=136+352-259=847-(591-357)=996-(117-106)=409×(650-644)=96+502=101×9-677=195+(313-51)=866×6-742=436-30-120=311-(705-690)=592+130=250-(347-317)=195+99-195=489-(10+338)=106×8-318=52×2=971-692-214=567-197×2=78×4+338=668-525=157-60×2=2/8-1/8=401-119×2=234-206=274-(218-130)=964+(750-575)=125+(102-23)=832-698+999=14×2=415×2=990×(994-990)=86×4+52=27×(29-23)=185×(59-54)=283-(49+214)=478-(96+161)=259-176+295=468×2=411+(269-116)=405×9-425=218-109×2=36+260-264=989×(535-527)=344×8=151+75=120+776-120=566+187=482-(336-233)=284-(367-190)=340-25×4=86×(231-223)=735×8=940+881+656=417-(105+35)=453-314+900=511+271+172=345-290+140=372-64×2=237+103-270=32+398-396=192+(324-36)=878-(780-331)=366+(382-58)=321-(287-258)=699-208=623+230×2=380-192=113+361=376+(327-231)=317×8-282=73×5+543=111+70×7=268-86-69=491-207-163=718-549+39=61+307+592=932-53-716=47×4+297=850-661-59=414-28-252=827+913=823×(612-607)=292-109+290=379-(62+132)=458-54=369+76=505+361+275=125×6-407=42×(60-52)=131+31×8=314+133-416=446-(325-249)=236+66-254=580-119=93+266=46×9+122=499-(169+77)=800-(739-432)=439-37×8=179+136=861+535+33=940-(991-919)=329+(337-166)=312+444+45=176-148+377=479-106+850=149-16+64=707-227=143+630+131=269-254=338-65=178+(408-138)=79×5+19=683+286=739×2-79=84×(673-669)=307-39×5=370-234+320=289×3=193×5-110=139+122=227+(664-235)=262-23×5=430+801-126=581+(914-377)=413-141-272=431-(143+226)=962-241+775=349-(239-147)=10×9=93+(871-447)=374-(269+50)=645-101-314=443×2=445×9=534-242-94=478×7=10+458-362=150+914+593=611-47=443-181×2=728-191×3=727-708=267-10-120=245×(454-450)=425-(119+61)=3/7-1/7=690×(707-704)=108×4=145×(377-373)=183-84+902=287×(400-393)=136-61-18=157×4-533=46×8+91=121×6-700=186×2-294=2/3-1/3=664-181+351=15+194×2=496×2=15×(129-122)=444×8=338-(486-347)=430-365+42=318-134=246-176+199=859+(759-181)=636+673+682=742-117-611=214-(411-385)=475-427=215×2=422-75×2=308-25×6=62+136=470-(373-302)=110×4=153+58=475-(372+90)=555+812-941=718-481+499=400×2-432=876+243+531=81×5=790-(610-484)=145×5-375=74+(429-288)=877-(501-482)=115+836-683=188-(110+33)=973-(857-563)=85×3=330-78×2=261+654-13=526+(796-690)=437-101-195=565×6-110=193×5-314=708×(226-220)=2/5-1/5=537-97×5=594-67=22×2=468-29=524-368=898+329×2=97+(371-278)=329-(448-279)=4/7+2/7=833-474-157=219+115-312=448-18-190=7/10+3/10=263+285×2=290×2+254=397+(164-32)=342-26-140=496+(491-451)=81+(420-257)=595-(728-242)=91+353=993-(828-660)=828×(991-982)=294+89×4=284+642+13=91×(70-64)=379+(303-225)=332×9-743=337+(88-28)=374-11=31×(49-44)=489-(359+103)=295+92=525+298-704=341-160+253=879+361=764-(535+99)=983+(581-298)=75×9-198=674×8-17=345-193=548×(453-448)=2/6-1/6=206-(345-257)=363-192+113=328-284+431=658×2-112=52+23×6=590+(545-114)=107×4=436-(26+26)=485-48×7=787+935=143+111=99+48+549=6/7-1/7=704-75×4=75×7=936-199-467=606×(455-451)=168+598+831=677-90×6=35+518+153=746-(807-407)=518-(556-189)=220+27×5=89+201+599=657-(461+66)=3/7+2/7=469+229-603=234+110=992+533+446=253×3+939=477×2-107=410-149-46=477-52×4=306-132+193=348-194-85=991-(953-470)=48+487-413=935×4=77×(302-293)=381-251-50=141×(441-438)=906+617-380=917-515-369=847+477+401=554-37+471=145+(708-102)=355-243-10=122+155=499+142×3=266+(811-269)=423-77×4=102+67=377+(632-630)=145×(278-272)=492-21=297-(127+86)=177-146=789-108×5=996+524-872=352+23+413=380-179=370-321+170=783×5=87+56+251=303×3=617+13+360=284+37+185=17×(118-110)=579×8=756-(375+124)=286-20-136=230+539=531+112=987-405=277+164×4=427-82-40=317+166+795=108+(493-277)=418-(105+270)=398+98-448=789-179×4=806×8-284=516-(977-860)=174×(553-546)=672-564=452×2-379=317+(226-14)=333×2=924-(824+91)=407-49-276=4/7-2/7=960-44×8=262+761-148=845-614+923=565-(27+41)=313-210=476-156×3=101+(342-284)=496-(295-211)=256-123-54=933-(82+220)=12×6+286=202×(373-369)=951-131-214=192+20-106=388+774=700×8-666=13+367+249=400-369+284=87+(423-196)=966-130-463=486-(89+18)=106×(190-184)=750+214-267=137+42+646=736+(574-452)=171+89=648+581-660=782+438-832=94-(996-929)=355-241=812+493+152=126+274=149+171×3=224+(324-167)=332+(445-405)=708-616+325=710+107×7=997-(205+359)=21+304-296=70×9+889=298×2-459=302×9-102=192×7=132×6-168=457+(702-481)=370-69×3=388+61-30=1/5+2/5=125×5+311=623×(325-320)=720-522-174=66×(332-324)=797-253×3=178-(26+27)=233-67+200=762+(813-594)=158+570+576=168+130+642=435-57×3=114+391-108=59×7=479-(218+160)=797+(899-804)=969-411=397+(904-633)=853-177-144=645×3=542×2=204×(467-464)=138×(198-193)=153+321=288+303=533-177-24=479-96-98=195×(254-249)=727-530-134=97×(352-346)=877+77×4=942-15-127=448-58×4=874-632=610-199-191=631+68+27=254+398-280=529-134=978-577-316=578+178=3/9+4/9=183+(470-361)=307-(195-55)=268×3+770=450-(45+397)=993+191=13×4+149=291-66+50=359-(244+42)=749-(364-33)=141×6+790=365×2=342+(497-316)=435×4=206×8=252+56×6=12+661+229=855-(744-223)=560×6=187-57=930+849-308=26+79+335=998+196×3=875×6-170=1/6+4/6=338-178=483+16-271=36×5+367=179+56+680=13×6-57=483-183×2=326×3-394=617+213+158=380-87-69=38×6+360=567+(963-345)=386+19×2=426+116×2=950-(111+834)=65+442+20=379+54×3=5/8+2/8=286-27=14×(251-248)=857-73×3=104-81-19=130+20-112=520-86×4=91×5=25×7+273=254+181=476+260=406-(969-879)=191+510+276=29+(432-372)=782-205=483×3-952=392×2-151=67+287-180=116+(610-475)=210×2+295=719+77×6=589-289+511=170×5-435=979-126×2=273×8-343=893+(999-303)=361-189-105=463-90×2=327-156+197=396×2-502=592-62-351=152+313=301+182=433+(399-85)=484-42=198-(220-51)=106+279-122=589×6=291-(384-223)=254+(882-155)=331-(244-56)=255-(145+25)=544+848-157=207+184-192=725-(888-166)=371-(99+179)=226+464+223=230-61+140=840-216×2=397-375=209-66-95=425×3=326+405=106+325=163+233=134+973-294=673+728+638=848×(633-629)=274+693=280-(20+176)=302-76+206=109+954-13=参考答案294-175+227=346336-240+153=249282+183+465=930317-304+390=403496-46×5=26622×(267-261)=132323-(168+12)=143446-(387-315)=374851-(74+424)=353497-350-88=59497-123-54=320889-349×2=191802-168-552=82945-625+585=905245-(181-21)=85246+218=46447+507+379=933923-167+958=1714255-56=199182+304=48649×5=24577×7=539309×6-897=957944+74-91=927756×(342-335)=5292910-(693+31)=186371-366+176=181953+348+910=2211479-(47+177)=2553/7-2/7=1/7996-827-162=7621-503=118267-62×4=19125×6-392=35888+319=407326-266+235=295930+(948-336)=1542350+74=4241/5+3/5=4/5400-194=206462-172-218=72542-26×4=438486-(141-72)=417900-(151+372)=377439+(737-270)=906985-(39+859)=87259-120+162=301378+198-203=373238+26-165=99388-304=84331-(58+36)=237809-152×3=353477-(750-521)=24854+321=37548×5-193=47236-(280-159)=115431-90×3=161136-101+448=48315×(360-357)=45751+484-195=104072×8-443=133213×(540-532)=1704440-240+30=230152+222+595=9691/8+5/8=6/8184+71-90=165333×(863-856)=2331811+925=1736859×9-718=7013834+716-192=1358616-(954-629)=291389-(403-316)=302190×3-469=101811+87×2=985761+929=1690208-64×2=80190+(438-414)=21483×(334-328)=498498-358=140230-171-34=25894×(539-536)=268266×3=198146+88+129=363380-(336-93)=137734-215+903=1422467-278+233=422253+73-124=202101+266=367447-(134+280)=3370+89=159376-172-167=37493-44-85=364166+225-13=378618×6=3708466+237=70312×3+434=470327+(131-102)=356283×9=2547301+44-42=30354+333+287=674636+323=959166+465=631227+674+867=1768319+50×6=619429-(496-494)=42792×(422-417)=460425+459+669=1553959-32+653=1580639-19×6=525498-(14+361)=123367-31×5=212474-230+205=449258-46-155=5721×7=147485-(166+191)=128455-(366-213)=302512+391+741=164433×7=231169-109+375=435982×2=1964265-(123+70)=72997+171+488=1656160+37=197264-56×4=40643-(451+25)=167899-311-423=165200-30×4=8069×3+193=400863-320+938=148122×5=110585×5-519=2406240+34+66=340442-136-210=96583×5=29152/9+7/9=1318+87=405236-12×9=128908-470=438658-286-233=13993+343+634=1070816+311+274=140181+130+620=831643-(682-665)=626301×2=602126×(63-59)=504677-179+665=1163420-(354-252)=318567×4=2268435+(897-553)=77918+308-133=193410-(59+282)=6990-33+370=427688-(147+82)=459498+(147-26)=619977×(556-551)=4885145×(969-964)=725329-53+292=568458-381=77284+188×3=84818×(352-349)=54361-84-40=237463-105×3=148456-176×2=104305×(22-17)=152553+270-144=179778-619=159144×2=288570+544-456=658884-637=2477/9-1/9=6/9415+(442-38)=819148+287×3=1009474+156×5=1254938-105+927=1760103+106+425=634357-33×7=126193+98-146=145212×(26-22)=848736-612=124577-(689-120)=8449-(107+271)=7135×(241-234)=245613×(265-260)=3065197×5-444=54126×(98-95)=78680-(137+410)=133783+(931-679)=1035108+47×2=202360+138-280=218166+(320-147)=33969×(255-250)=345429-150-89=190267+93×7=91891×(103-95)=728571-175×2=22159×8-444=2826+17+333=3762/4-1/4=1/4476-11×8=388117+155=2722/7+3/7=5/758+136×6=874790-142+622=1270437-95×3=152736+55×2=846112+221=333420×(882-875)=2940316-(154-12)=174228×2-396=60559×2-694=424497-(323+109)=6532+372+477=881833+113+30=976689-(520+14)=15579-(229-186)=36930-96=834116×2+407=639754-300=454676-(245+17)=414594-96=49811×5+57=112112-54=5891+130+235=456102×(845-841)=408466×5-918=1412409-(280+45)=84159×2+381=699260-(327-224)=157723-(638-327)=412861×6=5166982×6=5892197×5-18=967222-125+42=139708-48×9=276689+260+364=1313181-57=124884×5-188=4232705×9-393=5952500-(259+218)=2381-75+399=405868+205-111=962181×2+769=1131896+344=1240460×4-178=1662281-183=98750-(204+218)=328584-136=448305-(155+48)=102594-290=304452×2-318=5864/7-1/7=3/7672×3=2016466-(277+181)=8350×6-200=1900385-192+815=1008366-83-238=4567+369-310=126868+198-806=260662-(370-297)=589421-13×4=36967+947-547=467461-80-163=218929-(294-85)=720657-267=390152+406=55878×5-47=343175+(202-123)=254273×2=546905×9-998=7147247-11×7=170167+148-308=7676+609+181=146644×7=30857+(491-245)=303311×3=933172×4-427=261123+158-169=112393-(108-44)=32961×(433-426)=427705×4-279=254117+845+597=1459438-410=2877×6+667=1129444×8-42=3510369-61×5=64303+623-200=726261-171=9065×5=325955-184×4=219348-327=21428-(974-884)=338175×3+318=843680-184+713=1209794-93×2=608706-160+697=124384-27=57382+(714-478)=618662+(704-564)=802159×7-251=8627/8-1/8=6/87/10+2/10=9/10667+309=976954-(103+186)=665379-55+310=634906-294×3=24489-281-203=517×7+382=501377+106=48324×9-128=88439-59=380644-(226+335)=83993-(327+463)=203245+304+449=99888×(653-649)=352533-(194+146)=193287+604+782=1673323-26=297423-(446-435)=412463+313=776412-40=372855-144+804=1515183×5=91549×(387-379)=392357×(718-714)=1428419+80=49985-34+681=732207×3+711=1332991-758-18=215348-(121+49)=178186+(810-194)=802422+(109-86)=445499-(422-111)=188121×4=484116+277×3=947118×4=472931+296-378=849458×2+624=1540270-18×8=126243×2-330=156136+352-259=229847-(591-357)=613996-(117-106)=985409×(650-644)=245496+502=598101×9-677=232195+(313-51)=457866×6-742=4454436-30-120=286311-(705-690)=296592+130=722250-(347-317)=220195+99-195=99489-(10+338)=141106×8-318=53052×2=104971-692-214=65567-197×2=17378×4+338=650668-525=143157-60×2=372/8-1/8=1/8401-119×2=163234-206=28274-(218-130)=186964+(750-575)=1139125+(102-23)=204832-698+999=113314×2=28415×2=830990×(994-990)=396086×4+52=39627×(29-23)=162185×(59-54)=925283-(49+214)=20478-(96+161)=221259-176+295=378468×2=936411+(269-116)=564405×9-425=3220218-109×2=036+260-264=32989×(535-527)=7912344×8=2752151+75=226120+776-120=776566+187=753482-(336-233)=379284-(367-190)=107340-25×4=24086×(231-223)=688735×8=5880940+881+656=2477417-(105+35)=277453-314+900=1039511+271+172=954345-290+140=195372-64×2=244237+103-270=7032+398-396=34192+(324-36)=480878-(780-331)=429366+(382-58)=690321-(287-258)=292699-208=491623+230×2=1083380-192=188113+361=474376+(327-231)=472317×8-282=225473×5+543=908111+70×7=601268-86-69=113491-207-163=121718-549+39=20861+307+592=960932-53-716=16347×4+297=485850-661-59=130414-28-252=134827+913=1740823×(612-607)=4115292-109+290=473379-(62+132)=185458-54=404369+76=445505+361+275=1141125×6-407=34342×(60-52)=336131+31×8=379314+133-416=31446-(325-249)=370236+66-254=48580-119=46193+266=35946×9+122=536499-(169+77)=253800-(739-432)=493439-37×8=143179+136=315861+535+33=1429940-(991-919)=868329+(337-166)=500312+444+45=801176-148+377=405479-106+850=1223149-16+64=197707-227=480143+630+131=904269-254=15338-65=273178+(408-138)=44879×5+19=414683+286=969739×2-79=139984×(673-669)=336307-39×5=112370-234+320=456289×3=867193×5-110=855139+122=261227+(664-235)=656262-23×5=147430+801-126=1105581+(914-377)=1118413-141-272=0431-(143+226)=62962-241+775=1496349-(239-147)=25710×9=9093+(871-447)=517374-(269+50)=55645-101-314=230443×2=886445×9=4005534-242-94=198478×7=334610+458-362=106150+914+593=1657611-47=564443-181×2=81728-191×3=155727-708=19267-10-120=137245×(454-450)=980425-(119+61)=2453/7-1/7=2/7690×(707-704)=2070108×4=432145×(377-373)=580183-84+902=1001287×(400-393)=2009136-61-18=57157×4-533=9546×8+91=459121×6-700=26186×2-294=782/3-1/3=1/3664-181+351=83415+194×2=403496×2=99215×(129-122)=105444×8=3552338-(486-347)=199430-365+42=107318-134=184246-176+199=269859+(759-181)=1437636+673+682=1991742-117-611=14214-(411-385)=188475-427=48215×2=430422-75×2=272308-25×6=15862+136=198470-(373-302)=399110×4=440153+58=211475-(372+90)=13555+812-941=426718-481+499=736400×2-432=368876+243+531=165081×5=405790-(610-484)=664145×5-375=35074+(429-288)=215877-(501-482)=858115+836-683=268188-(110+33)=45973-(857-563)=67985×3=255330-78×2=174261+654-13=902526+(796-690)=632437-101-195=141565×6-110=3280193×5-314=651708×(226-220)=42482/5-1/5=1/5537-97×5=52594-67=52722×2=44468-29=439524-368=156898+329×2=155697+(371-278)=190329-(448-279)=1604/7+2/7=6/7833-474-157=202219+115-312=22448-18-190=2407/10+3/10=1263+285×2=833290×2+254=834397+(164-32)=529342-26-140=176496+(491-451)=53681+(420-257)=244595-(728-242)=10991+353=444993-(828-660)=825828×(991-982)=7452294+89×4=650284+642+13=93991×(70-64)=546379+(303-225)=457332×9-743=2245337+(88-28)=397374-11=36331×(49-44)=155489-(359+103)=27295+92=387525+298-704=119341-160+253=434879+361=1240764-(535+99)=130983+(581-298)=126675×9-198=477674×8-17=5375345-193=152548×(453-448)=27402/6-1/6=1/6206-(345-257)=118363-192+113=284328-284+431=475658×2-112=120452+23×6=190590+(545-114)=1021107×4=428436-(26+26)=384485-48×7=149787+935=1722143+111=25499+48+549=6966/7-1/7=5/7704-75×4=40475×7=525936-199-467=270606×(455-451)=2424168+598+831=1597677-90×6=13735+518+153=706746-(807-407)=346518-(556-189)=151220+27×5=35589+201+599=889657-(461+66)=1303/7+2/7=5/7469+229-603=95234+110=344992+533+446=1971253×3+939=1698477×2-107=847410-149-46=215477-52×4=269306-132+193=367348-194-85=69991-(953-470)=50848+487-413=122935×4=374077×(302-293)=693381-251-50=80141×(441-438)=423906+617-380=1143917-515-369=33847+477+401=1725554-37+471=988145+(708-102)=751355-243-10=102122+155=277499+142×3=925266+(811-269)=808423-77×4=115102+67=169377+(632-630)=379145×(278-272)=870492-21=471297-(127+86)=84177-146=31789-108×5=249996+524-872=648352+23+413=788380-179=201370-321+170=219783×5=391587+56+251=394303×3=909617+13+360=990284+37+185=50617×(118-110)=136579×8=4632756-(375+124)=257286-20-136=130230+539=769531+112=643987-405=582277+164×4=933427-82-40=305317+166+795=1278108+(493-277)=324418-(105+270)=43398+98-448=48789-179×4=73806×8-284=6164516-(977-860)=399174×(553-546)=1218672-564=108452×2-379=525317+(226-14)=529333×2=666924-(824+91)=9407-49-276=824/7-2/7=2/7960-44×8=608262+761-148=875845-614+923=1154565-(27+41)=497313-210=103476-156×3=8101+(342-284)=159496-(295-211)=412256-123-54=79933-(82+220)=63112×6+286=358202×(373-369)=808951-131-214=606192+20-106=106388+774=1162700×8-666=493413+367+249=629400-369+284=31587+(423-196)=314966-130-463=373486-(89+18)=379106×(190-184)=636750+214-267=697137+42+646=825736+(574-452)=858171+89=260648+581-660=569782+438-832=38894-(996-929)=27355-241=114812+493+152=1457126+274=400149+171×3=662224+(324-167)=381332+(445-405