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101-62+208=2/5-1/5=347-(32+278)=100-12×6=448-168=338+163+361=321-247+380=124×5+261=485-(99+343)=786×8-892=92+260=409-151+144=900-118×7=276-28=473-133=49+(137-92)=79+(397-220)=448-(253+174)=302+880=184-12×9=442-148+89=37+900+263=115×(57-52)=420+278+41=28×8=253+533=996+156×2=108+168×5=470+129+57=848-10=218+950-704=259-(440-422)=174+243+15=211+199×3=346+(104-28)=402-(50+22)=123-59-42=21×(348-340)=124×8-926=478-72×6=300×3+45=308-283+46=887-426=351-64+95=737-289-361=479-42-375=728-96+940=310+(432-128)=960+69×4=25×(96-87)=401-(89+202)=107+(396-332)=1/6+3/6=155+37=412+(370-68)=218-195=472-(952-843)=80+158+448=877×7-660=159×3=382-95×2=436-(125-124)=279×3=980×(477-471)=27+393-177=291+(59-36)=438-92×2=162×(396-390)=982+(443-53)=532-(20+231)=275-(163-31)=307+63=467-351-52=361-110+22=309+189=380-78=299×9-48=481-438+807=300×2=78×5+114=64×(42-36)=104+(217-149)=264×3-326=402+(388-150)=651-(591-480)=289-(66+129)=187-10=355-(328-112)=270-15×3=827×7=765+635-660=423-(35+145)=574+374-678=637+277+784=371-25×2=15×5+243=153+15×8=107×7=215+970-429=449-177-78=373-(136+105)=368+40-247=378-(381-54)=211-51-146=258-144+688=67+102×7=902-(710-107)=908+196-988=78+193-115=51+322-313=572-170-343=4/5-1/5=550×2=408-37-150=173+204=515×2-459=190+187=488-(58+231)=918-411=730-(367+215)=700×5-300=238×(924-918)=463-(53+406)=81-39+397=565×9=399-182×2=687-166-117=725+102+463=750+689-531=756+533=107×4-385=711-(367+28)=813+824+566=54+186=298-253=347-(376-41)=289+526+673=45+188×4=360-222-47=32+(634-126)=113×7=854-245-279=437-105-322=646-(39+218)=162+31-160=407-(223+28)=460-(100+51)=728×(468-462)=827-(569+49)=717+373-591=701+(860-807)=1/5+2/5=126-(192-108)=818+68×3=62+325+613=921-651+25=669×8-468=459-75=162-130+782=92×4-266=436-120×3=207+318×2=312+(455-260)=976-766+976=892-(413-138)=399+17×9=672-(966-575)=119×8=199+155×2=434-(304-159)=119×5-178=368×2-266=165×5-485=682-437+287=486×2-147=479-(517-204)=796-110-566=415+(790-39)=493+155+522=366+114+62=152×4-105=126×7=226+169=56×2+233=457-42×8=882+888-189=68×9-151=85×(151-142)=965-657-167=82+845+157=10+879-62=284-163+14=76×8+319=127×2=700×(885-879)=158+(345-287)=3/8+4/8=349+136-256=498+(597-308)=339-156=120×7=474-(318-76)=561×(270-266)=107×6=188+12-188=59+68-70=347+814=325+129-439=213×2+773=772+149+18=79×8+804=400-83×4=940×4=379-(352-184)=189×(27-24)=690-145=46×7+37=238+141=163×2=395+71-63=498-118+354=336+124-345=91-71=399-178+217=452-233-98=303+110-366=816-512+221=696×2-654=67×7+230=389×2-371=213-96+297=470-73×5=444-414+412=61+(461-207)=370+373=893-305+654=728-(134+342)=426-239+977=484×7-14=74×5+509=27+84+658=44×5=311+(732-377)=329-14×2=480×6-579=219+203=426-112=695-162=430×2-707=179×7-380=803+(718-197)=268+78-207=200-51-65=451-357=304-26=465-51×4=313+258+86=517-257-71=107×9=88+949+995=716+264-389=649+(220-133)=44+209=734-468-189=182+149=390-(209+37)=843×(570-567)=213+124×2=81×(149-142)=608-89×4=152+265=250+(387-364)=460-124+937=104-(475-373)=306-255+21=415-193+93=992-(961-184)=948-(986-408)=521-(30+186)=457-308+101=563-451-60=29×(275-270)=315×2-243=405-109=328-307+379=164×3+298=817+601-344=938+687+92=113×3+273=395+50-286=501+(973-72)=199+344=600-424=410-400+204=858×(621-616)=381-50×4=460-154=183×5+20=415+45+729=4/8-3/8=493-(161+158)=565-(574-338)=430-31×3=199-49+227=172×(36-31)=426×(393-388)=13×7=58×3+163=327+117=197+137-290=966-309-143=66×7-305=2/8+3/8=102×4-311=34×9-202=18×(340-337)=863+993-408=981-820+566=676×(106-101)=129×6-108=443-(382+28)=183×(482-479)=57+300=115×(266-263)=319-(219+82)=850-(186+238)=465+(454-201)=233×4=152-(94-78)=588×8-251=293-18×9=28×(261-255)=274-181=76+437+138=429+188+232=364-359+469=862×7-803=103+118=866×2-13=290+(206-111)=182+297-345=977-57-786=1/4+2/4=247-(206-35)=434-311+150=831×3=65-(520-513)=204+581=290+162=603-348+126=370+103-17=471-91×3=300-56×3=710-654+698=491+46×4=454+468=658-130+411=428+651=75+348=964-96×8=114×(391-383)=443-80=313+318-284=545-(670-629)=41×5+117=156×3=362-43×6=4/8-1/8=484+139=472-99-367=239+196-41=402-174×2=203-(409-332)=109×5+427=133+244=491×2-203=586×8-14=401+90+193=968-524-439=3/6-1/6=156-11-97=69+(839-304)=602-203=320×2+128=119-105=457-211+93=320-(59+218)=825-(411+94)=414×2=251-235=141×4=277×(869-860)=673-(657-536)=667×(344-341)=466×2-677=433×2=87+932+573=315-(192-116)=240-215=316+152=390-(223-11)=283+84+87=40+32+547=269×9=198+332×2=366-154×2=83+78=493+159+77=410+351=58+276-193=47×6+24=659+602+488=351+(234-113)=553-110-138=462+81-346=304-21-155=647-216-98=57×6=107×(496-489)=4/8-2/8=246+232=65×(14-11)=450+(317-86)=362-116=363+38+566=29+88×2=415-(215-197)=838-(820-123)=595+35-450=64×8-369=877-(129+455)=539+238-527=576-256-144=44-10×2=303×2=152+418+557=34+352+56=960×7=379+101-182=936×(688-682)=253+597+98=554×6-331=112×(212-208)=579-157×3=825-(434-127)=447-129-218=651-68=314+367+237=329+(489-138)=369-184=464+23-342=853×6=266-58×4=165×3+242=36×7+102=667-456-104=398-21×3=891-386=320+663+529=845×4=687-161×2=854-223=943-(599+117)=969-(59+561)=250-(21+12)=104×5-284=129×6-272=469+(499-262)=775-378×2=1/8+5/8=304+(516-503)=282-10-80=86×9-185=108×7=225-(522-431)=863-(893-676)=280+48+359=624+(821-198)=393×7-186=709×(490-485)=157×3=175×3=40+705-714=643-131=669+688+377=124×7-90=803-340×2=221-45+181=757×3=424+57+888=313×2-430=208+(866-80)=982-669+845=17×(192-189)=289×3-103=385-273=763+112×4=937+(720-438)=860-75×4=228-(158+28)=194-111=709-691=963+756=573+133=393-(473-451)=228×2+118=714-(668-17)=580+71×7=559-446=610+481+181=732×(193-184)=453-139-270=159×2=878×6=159-(463-404)=658+687=116×5=813-41-153=478+783+401=94×3=123+337×2=420+264=624-523+146=635+125=7/8-1/8=91+498=289-19-215=485-48=272+(332-328)=108×8-131=296×(770-766)=358-(179+53)=722+(526-44)=282+191=278×6=949-288+55=290+175-316=255-150-48=871+(937-875)=335+107×7=386+(200-35)=125-(53-46)=326×2-256=430+308+793=560×8=513+125+64=597+771-536=174-66=26×7+367=421-263-23=90-19×4=596+437+308=921×(321-315)=422+(313-250)=224+984=936-735+994=316×(401-394)=227-(108+61)=731-428-246=172×3=180×(38-35)=771×8=785-487-194=466-96-294=227+270=704×(593-589)=263×6-633=686+644-594=11×(104-99)=223-(154-132)=169×(170-167)=865-628=767-(95+209)=313-(138+94)=981-(546-141)=87+285+33=120+119×3=372+514=20×(17-12)=597-23×8=306-17-20=958-873-28=968×(167-158)=233-(65+103)=640-48-519=963+(702-276)=788-713+564=112×4=3/10+5/10=929+195-293=218×2+181=288×8-179=400-218=50+143-141=364-227+218=301+684+947=468×(369-361)=699+(990-495)=687+(687-79)=784-106+610=97+933-830=356-43×2=452-60+74=637-66×8=415+238=487+(428-233)=118×2=782+(955-683)=412-195=685-(84+165)=39+(372-63)=575+138+107=92×8-569=434-137-190=455-397=3/6-2/6=914+239-718=766-(448+189)=256-(436-198)=806-585=609×(138-133)=982-(377+427)=986-(137+146)=92×2=142-10+21=627-(680-388)=128-88+456=773-701-10=104+524+156=106×(413-405)=499-216=353+62+144=973+928+904=15+77=356+73+532=952-140×3=970+362×2=369-273=494-(317+49)=970-146-98=789-(486-159)=647+910+198=948+167×4=416×9-408=404+73-215=212-(604-452)=417-139×3=443-177×2=560+672=275-32-213=85×(24-21)=380-111=460+352-278=656×3-219=177-(409-340)=284-66×3=246+166+478=746-690+866=900+19-793=392+40×3=214×(285-282)=138+67×8=65×(445-439)=465-(280-221)=168+263=288+491+195=409+(446-92)=801-209-144=470+94+260=743-(373+193)=791+54-416=520×8=422-104-215=2/7+4/7=391-233-67=367-153-59=639+(394-44)=457-(11+400)=271×(905-902)=351-35×9=384-(362-162)=120×7-758=60+232=451-12-45=5/6-1/6=39×6+239=236×4-514=283+195=62+363=723-14×8=362-(81+28)=918-103-619=808-(969-485)=81×(196-193)=152×5=184-102+48=2/4-1/4=37+90=804+752-26=183×(511-504)=996-37×3=83×(393-388)=995-123×2=242-(131-60)=343+206+337=199+501-667=605-(972-870)=602-(118+371)=710-104+658=934-123×7=472-26×5=282-(110+26)=731-223-225=394-30×6=767+110×8=481+(397-193)=729+73×4=217×2+872=77+269-67=312+396+32=730×2-726=366-30×5=297+(239-96)=204-84×2=493+424×2=412-42-276=274-29=38×3=268+754=393+427+34=675-317=433-(45+310)=202×(100-97)=406-(265-98)=127×(142-138)=248-(510-429)=114+94×3=600×9-301=322×3+689=496×3=7/10+3/10=872-(406-154)=727-316+875=262+(752-257)=240-54×3=365-318=351-205-67=112+174=335+585=781-491=56×(699-690)=425-69×6=289×7=401+238=814-47×5=279-(457-237)=848+(708-337)=431+432+955=19+136+21=640-(31+394)=2/7+3/7=4/7+3/7=953-791+235=147+(366-132)=463×7-192=101×(136-132)=588-10×2=944+(891-434)=190×3=65×8=746×8-319=700-(130+297)=245+169=292×(100-97)=3/5-2/5=752+423=189+62×5=10+(794-323)=253-120-62=797-(327+149)=508+299+67=18×2=863-403×2=149-68=810-234=511-207=876-389=299-(161+80)=464-283+154=217+261+310=151-85+69=486×9=466+255×2=70×3-108=860+(417-362)=15×(61-53)=580-(471-42)=746×5-87=163×6-312=896-761=342-(200+131)=151+51-123=756+624=465-(200+238)=705-45+785=470-(299+165)=566×(987-983)=877-(859-484)=654-(929-348)=666×5-707=258+295-250=4/7-2/7=203×2+228=441-34×2=508+(737-232)=378-(43+71)=786-(178+390)=250-(111+71)=968-(555+321)=57-(138-88)=208+98-271=292+225-25=786-(739-275)=868+(886-715)=338+(140-86)=241-(227-12)=997-332=500-28=263×3+813=434+(482-404)=95×(924-916)=333-80×3=249×4-889=1/6+4/6=271×2=340-(263+34)=227×3=374-290+350=838-59-108=237+598-721=979-547=332+461=259+231=720+(812-179)=129+186-25=355-123-220=906×2=910-595+558=66+394-298=833-18×8=391-207=969-90-415=433-(348-36)=375-200-46=264+(434-427)=935-(15+537)=99×7+65=143×5=477-234+100=854-696+121=680-126×5=20+275-102=22×2=991-309×2=参考答案101-62+208=2472/5-1/5=1/5347-(32+278)=37100-12×6=28448-168=280338+163+361=862321-247+380=454124×5+261=881485-(99+343)=43786×8-892=539692+260=352409-151+144=402900-118×7=74276-28=248473-133=34049+(137-92)=9479+(397-220)=256448-(253+174)=21302+880=1182184-12×9=76442-148+89=38337+900+263=1200115×(57-52)=575420+278+41=73928×8=224253+533=786996+156×2=1308108+168×5=948470+129+57=656848-10=838218+950-704=464259-(440-422)=241174+243+15=432211+199×3=808346+(104-28)=422402-(50+22)=330123-59-42=2221×(348-340)=168124×8-926=66478-72×6=46300×3+45=945308-283+46=71887-426=461351-64+95=382737-289-361=87479-42-375=62728-96+940=1572310+(432-128)=614960+69×4=123625×(96-87)=225401-(89+202)=110107+(396-332)=1711/6+3/6=4/6155+37=192412+(370-68)=714218-195=23472-(952-843)=36380+158+448=686877×7-660=5479159×3=477382-95×2=192436-(125-124)=435279×3=837980×(477-471)=588027+393-177=243291+(59-36)=314438-92×2=254162×(396-390)=972982+(443-53)=1372532-(20+231)=281275-(163-31)=143307+63=370467-351-52=64361-110+22=273309+189=498380-78=302299×9-48=2643481-438+807=850300×2=60078×5+114=50464×(42-36)=384104+(217-149)=172264×3-326=466402+(388-150)=640651-(591-480)=540289-(66+129)=94187-10=177355-(328-112)=139270-15×3=225827×7=5789765+635-660=740423-(35+145)=243574+374-678=270637+277+784=1698371-25×2=32115×5+243=318153+15×8=273107×7=749215+970-429=756449-177-78=194373-(136+105)=132368+40-247=161378-(381-54)=51211-51-146=14258-144+688=80267+102×7=781902-(710-107)=299908+196-988=11678+193-115=15651+322-313=60572-170-343=594/5-1/5=3/5550×2=1100408-37-150=221173+204=377515×2-459=571190+187=377488-(58+231)=199918-411=507730-(367+215)=148700×5-300=3200238×(924-918)=1428463-(53+406)=481-39+397=439565×9=5085399-182×2=35687-166-117=404725+102+463=1290750+689-531=908756+533=1289107×4-385=43711-(367+28)=316813+824+566=220354+186=240298-253=45347-(376-41)=12289+526+673=148845+188×4=797360-222-47=9132+(634-126)=540113×7=791854-245-279=330437-105-322=10646-(39+218)=389162+31-160=33407-(223+28)=156460-(100+51)=309728×(468-462)=4368827-(569+49)=209717+373-591=499701+(860-807)=7541/5+2/5=3/5126-(192-108)=42818+68×3=102262+325+613=1000921-651+25=295669×8-468=4884459-75=384162-130+782=81492×4-266=102436-120×3=76207+318×2=843312+(455-260)=507976-766+976=1186892-(413-138)=617399+17×9=552672-(966-575)=281119×8=952199+155×2=509434-(304-159)=289119×5-178=417368×2-266=470165×5-485=340682-437+287=532486×2-147=825479-(517-204)=166796-110-566=120415+(790-39)=1166493+155+522=1170366+114+62=542152×4-105=503126×7=882226+169=39556×2+233=345457-42×8=121882+888-189=158168×9-151=46185×(151-142)=765965-657-167=14182+845+157=108410+879-62=827284-163+14=13576×8+319=927127×2=254700×(885-879)=4200158+(345-287)=2163/8+4/8=7/8349+136-256=229498+(597-308)=787339-156=183120×7=840474-(318-76)=232561×(270-266)=2244107×6=642188+12-188=1259+68-70=57347+814=1161325+129-439=15213×2+773=1199772+149+18=93979×8+804=1436400-83×4=68940×4=3760379-(352-184)=211189×(27-24)=567690-145=54546×7+37=359238+141=379163×2=326395+71-63=403498-118+354=734336+124-345=11591-71=20399-178+217=438452-233-98=121303+110-366=47816-512+221=525696×2-654=73867×7+230=699389×2-371=407213-96+297=414470-73×5=105444-414+412=44261+(461-207)=315370+373=743893-305+654=1242728-(134+342)=252426-239+977=1164484×7-14=337474×5+509=87927+84+658=76944×5=220311+(732-377)=666329-14×2=301480×6-579=2301219+203=422426-112=314695-162=533430×2-707=153179×7-380=873803+(718-197)=1324268+78-207=139200-51-65=84451-357=94304-26=278465-51×4=261313+258+86=657517-257-71=189107×9=96388+949+995=2032716+264-389=591649+(220-133)=73644+209=253734-468-189=77182+149=331390-(209+37)=144843×(570-567)=2529213+124×2=46181×(149-142)=567608-89×4=252152+265=417250+(387-364)=273460-124+937=1273104-(475-373)=2306-255+21=72415-193+93=315992-(961-184)=215948-(986-408)=370521-(30+186)=305457-308+101=250563-451-60=5229×(275-270)=145315×2-243=387405-109=296328-307+379=400164×3+298=790817+601-344=1074938+687+92=1717113×3+273=612395+50-286=159501+(973-72)=1402199+344=543600-424=176410-400+204=214858×(621-616)=4290381-50×4=181460-154=306183×5+20=935415+45+729=11894/8-3/8=1/8493-(161+158)=174565-(574-338)=329430-31×3=337199-49+227=377172×(36-31)=860426×(393-388)=213013×7=9158×3+163=337327+117=444197+137-290=44966-309-143=51466×7-305=1572/8+3/8=5/8102×4-311=9734×9-202=10418×(340-337)=54863+993-408=1448981-820+566=727676×(106-101)=3380129×6-108=666443-(382+28)=33183×(482-479)=54957+300=357115×(266-263)=345319-(219+82)=18850-(186+238)=426465+(454-201)=718233×4=932152-(94-78)=136588×8-251=4453293-18×9=13128×(261-255)=168274-181=9376+437+138=651429+188+232=849364-359+469=474862×7-803=5231103+118=221866×2-13=1719290+(206-111)=385182+297-345=134977-57-786=1341/4+2/4=3/4247-(206-35)=76434-311+150=273831×3=249365-(520-513)=58204+581=785290+162=452603-348+126=381370+103-17=456471-91×3=198300-56×3=132710-654+698=754491+46×4=675454+468=922658-130+411=939428+651=107975+348=423964-96×8=196114×(391-383)=912443-80=363313+318-284=347545-(670-629)=50441×5+117=322156×3=468362-43×6=1044/8-1/8=3/8484+139=623472-99-367=6239+196-41=394402-174×2=54203-(409-332)=126109×5+427=972133+244=377491×2-203=779586×8-14=4674401+90+193=684968-524-439=53/6-1/6=2/6156-11-97=4869+(839-304)=604602-203=399320×2+128=768119-105=14457-211+93=339320-(59+218)=43825-(411+94)=320414×2=828251-235=16141×4=564277×(869-860)=2493673-(657-536)=552667×(344-341)=2001466×2-677=255433×2=86687+932+573=1592315-(192-116)=239240-215=25316+152=468390-(223-11)=178283+84+87=45440+32+547=619269×9=2421198+332×2=862366-154×2=5883+78=161493+159+77=729410+351=76158+276-193=14147×6+24=306659+602+488=1749351+(234-113)=472553-110-138=305462+81-346=197304-21-155=128647-216-98=33357×6=342107×(496-489)=7494/8-2/8=2/8246+232=47865×(14-11)=195450+(317-86)=681362-116=246363+38+566=96729+88×2=205415-(215-197)=397838-(820-123)=141595+35-450=18064×8-369=143877-(129+455)=293539+238-527=250576-256-144=17644-10×2=24303×2=606152+418+557=112734+352+56=442960×7=6720379+101-182=298936×(688-682)=5616253+597+98=948554×6-331=2993112×(212-208)=448579-157×3=108825-(434-127)=518447-129-218=100651-68=583314+367+237=918329+(489-138)=680369-184=185464+23-342=145853×6=5118266-58×4=34165×3+242=73736×7+102=354667-456-104=107398-21×3=335891-386=505320+663+529=1512845×4=3380687-161×2=365854-223=631943-(599+117)=227969-(59+561)=349250-(21+12)=217104×5-284=236129×6-272=502469+(499-262)=706775-378×2=191/8+5/8=6/8304+(516-503)=317282-10-80=19286×9-185=589108×7=756225-(522-431)=134863-(893-676)=646280+48+359=687624+(821-198)=1247393×7-186=2565709×(490-485)=3545157×3=471175×3=52540+705-714=31643-131=512669+688+377=1734124×7-90=778803-340×2=123221-45+181=357757×3=2271424+57+888=1369313×2-430=196208+(866-80)=994982-669+845=115817×(192-189)=51289×3-103=764385-273=112763+112×4=1211937+(720-438)=1219860-75×4=560228-(158+28)=42194-111=83709-691=18963+756=1719573+133=706393-(473-451)=371228×2+118=574714-(668-17)=63580+71×7=1077559-446=113610+481+181=1272732×(193-184)=6588453-139-270=44159×2=318878×6=5268159-(463-404)=100658+687=1345116×5=580813-41-153=619478+783+401=166294×3=282123+337×2=797420+264=684624-523+146=247635+125=7607/8-1/8=6/891+498=589289-19-215=55485-48=437272+(332-328)=276108×8-131=733296×(770-766)=1184358-(179+53)=126722+(526-44)=1204282+191=473278×6=1668949-288+55=716290+175-316=149255-150-48=57871+(937-875)=933335+107×7=1084386+(200-35)=551125-(53-46)=118326×2-256=396430+308+793=1531560×8=4480513+125+64=702597+771-536=832174-66=10826×7+367=549421-263-23=13590-19×4=14596+437+308=1341921×(321-315)=5526422+(313-250)=485224+984=1208936-735+994=1195316×(401-394)=2212227-(108+61)=58731-428-246=57172×3=516180×(38-35)=540771×8=6168785-487-194=104466-96-294=76227+270=497704×(593-589)=2816263×6-633=945686+644-594=73611×(104-99)=55223-(154-132)=201169×(170-167)=507865-628=237767-(95+209)=463313-(138+94)=81981-(546-141)=57687+285+33=405120+119×3=477372+514=88620×(17-12)=100597-23×8=413306-17-20=269958-873-28=57968×(167-158)=8712233-(65+103)=65640-48-519=73963+(702-276)=1389788-713+564=639112×4=4483/10+5/10=8/10929+195-293=831218×2+181=617288×8-179=2125400-218=18250+143-141=52364-227+218=355301+684+947=1932468×(369-361)=3744699+(990-495)=1194687+(687-79)=1295784-106+610=128897+933-830=200356-43×2=270452-60+74=466637-66×8=109415+238=653487+(428-233)=682118×2=236782+(955-683)=1054412-195=217685-(84+165)=43639+(372-63)=348575+138+107=82092×8-569=167434-137-190=107455-397=583/6-2/6=1/6914+239-718=435766-(448+189)=129256-(436-198)=18806-585=221609×(138-133)=3045982-(377+427)=178986-(137+146)=70392×2=184142-10+21=153627-(680-388)=335128-88+456=496773-701-10=62104+524+156=784106×(413-405)=848499-216=283353+62+144=559973+928+904=280515+77=92356+73+532=961952-140×3=532970+362×2=1694369-273=96494-(317+49)=128970-146-98=726789-(486-159)=462647+910+198=1755948+167×4=1616416×9-408=3336404+73-215=262212-(604-452)=60417-139×3=0443-177×2=89560+672=1232275-32-213=3085×(24-21)=255380-111=269460+352-278=534656×3-219=1749177-(409-340)=108284-66×3=86246+166+478=890746-690+866=922900+19-793=126392+40×3=512214×(285-282)=642138+67×8=67465×(445-439)=390465-(280-221)=406168+263=431288+491+195=974409+(446-92)=763801-209-144=448470+94+260=824743-(373+193)=177791+54-416=429520×8=4160422-104-215=1032/7+4/7=6/7391-233-67=91367-153-59=155639+(394-44)=989457-(11+400)=46271×(905-902)=813351-35×9=36384-(362-162)=184120×7-758=8260+232=292451-12-45=3945/6-1/6=4/639×6+239=473236×4-514=430283+195=47862+363=425723-14×8=611362-(81+28)=253918-103-619=196808-(969-485)=32481×(196-193)=243152×5=760184-102+48=1302/4-1/4=1/437+90=127804+752-26=1530183×(511-504)=1281996-37×3=88583×(393-388)=415995-123×2=749242-(131-60)=171343+206+337=886199+501-667=33605-(972-870)=503602-(118+371)=113710-104+658=12