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311×8=238+104=447+(266-207)=839+527-947=950-57×6=811+995+270=465-204-26=913-(46+652)=237-191=272-(29+228)=311×3-671=826×(372-366)=408-(253+27)=165×7-264=336+412+278=676×(927-918)=915-17+158=488-445-43=475-84-224=966×(165-159)=435-94=2/8-1/8=369+343=579-90-438=99×4-386=689+141-289=665+(542-522)=134-106+378=731-473=695-77-147=377-123=233-146=901-530-335=917-312=303+762-718=317×2+168=263-120+145=265+837+192=60×2+47=882+674-323=467-46-25=754×4-50=530×(557-550)=77+(441-386)=272+305+12=374+837-225=109×(63-60)=880-736+29=903-(300+479)=649×2=844-556-249=221-(248-63)=122+321-10=205+890-37=227+262=919-(675-63)=445×2-766=570×3-302=486+(849-342)=115+(398-264)=380×2=801+(973-515)=489-98=902×4-469=547+930+527=487-(313+17)=428+(443-343)=14+371-167=545+664=248+112+294=35×9-232=4/5-1/5=17+(592-29)=141+315-351=164×6=206×4-525=264-130+264=311×7=167×(426-423)=79×3+21=930+(976-22)=130+401+838=24+(253-207)=894-(683-328)=47×8+55=272+122=135×(259-254)=426-(10+328)=106-92+374=879-671+466=264-13=776-40×3=617×(228-220)=66+110×2=335+(290-159)=127+353=380+113-437=130+67-111=499-80=135-69=400-110×2=774-(220+442)=487-(989-916)=637+(539-233)=121+324=112+260-157=172+201×4=884+205×3=101+219+680=798×(148-144)=184+61×9=477-(46+109)=524-495=3/5+2/5=507+682=648-(753-171)=929-138=152+(82-70)=446-(384-217)=252-160-72=966+410=323+(492-320)=264-(168+90)=457-18×4=69×9-576=293-39×7=339-(375-340)=570-271=38×6-226=236×8-888=136×5=87+18×6=400+192=161+129=243+610-259=459×2-196=139-13+103=532+34+756=402-141=48+255=767-(245+308)=762-(488+211)=352+572+831=486+548-215=230-176=5/8+2/8=498×2=820-121+335=6/9+3/9=39×2=932×(310-304)=694-76×2=406×2+302=436-(362-42)=565-(979-880)=73+22+452=814×4=492-(118+304)=835+717+709=217+75-139=489-(137+56)=400-62×3=165+742+143=3/9+4/9=118+173=491×4=645+(923-371)=408-49×6=220×4-535=250-50-118=85+239=46+(529-128)=535+839+815=866-273+284=443×2-566=474-156×2=799-106+458=50+341-153=1/5+3/5=255+91×8=369-327+286=156+30×5=312-181=451-249-53=57+256-260=52×2=610-555-48=602-426+539=370-(255-200)=663-(458+57)=510+405-851=495+854-316=299+71+242=618+(888-838)=282×3-117=51×2+730=696-209+583=143+227=3/6+2/6=356-237-29=375×3-359=661×(745-740)=926-579-298=63×2=316-(206-173)=299+29+279=2/8+4/8=270-(449-248)=438+526=489-401+56=49+(399-293)=481-256=966-(848-620)=322-(81+132)=988-(532-333)=374-42×8=193+(315-120)=221-26-111=543+441=49×4=171×5+129=513+522+375=842+531=20+359-265=550+861+391=486-328+178=382-23=346-267=130×6=239×3+246=897+757-959=447-(73+69)=357×(213-205)=259+86+22=137×2=78×4=15×7=445-54×8=23+21=62×9+615=302-85=490-230×2=495-(534-153)=689×5-165=625-(91-53)=309-(493-471)=292×8=379×2-186=51×7+65=362-199+147=464-79-115=9/10-1/10=354+24-198=530+42×7=50+140×6=241×3+230=427-378+202=683+898+680=761+521=41×9+469=28×2=998-240=380-18×9=413-(91+81)=347-147=481-80-136=791+(518-364)=812×4=435-(144+89)=418+272+246=465-(413-351)=510×(643-634)=755+909=471+(970-464)=282+18+684=993-831=15×2+422=208+(317-255)=118+(235-231)=401-(105+177)=477+15-309=407+(247-229)=102-67=462-(256+48)=310+(723-66)=187+(287-100)=521-263=213+36-119=63+343=425-(226+111)=101×(454-448)=232+670-126=740-(848-437)=826-251-380=367+(471-63)=65+169=828-281-81=452-414=650-(19+161)=800+208×2=334+30-33=4/8-2/8=67×(345-338)=3/7-1/7=65+301-66=979-12-428=439+(442-274)=629-206×3=298-(63+140)=519+127+338=604-(190+34)=506-(416+13)=84×(481-477)=617-374=419+989+211=665+230-420=322-274+75=418-(33+49)=870×(439-432)=96×6-109=527+(509-387)=167×4+47=93×7-651=128+226=365-(82-74)=122×6+325=335+350-298=311+129+255=167+180+101=560+477=326-(433-107)=437-131-260=477-43×4=827-(60+379)=439+318+96=36+(436-74)=104+134=872-49+309=481+(272-248)=376-144=711+871-897=928-754=205-129=72×6=353-100=47+26+245=478-(170+55)=653+406-546=219-51+276=22×7=347+(591-258)=691-691+571=403-239-16=95+123-59=442-(375-143)=46×8-137=345+250×2=321-(817-717)=61×4=627-111+301=952-322-296=2/6-1/6=372-282=109+(898-225)=348×2=662-(788-590)=724+502=266+(325-114)=892+11-47=808-85-603=106+326-412=103+(868-660)=690+(347-294)=991-(729+39)=374-(317-251)=672-(292+264)=924+750+500=52×5=783-21-229=492+(211-24)=331+551-10=650-39×7=899-165×4=649+151-58=390-233-85=297+75=527-123=984-67×5=763-(626+76)=220-200=201-131=4/8-3/8=19×(984-981)=430-132-129=4/7+2/7=593+65+261=50×6=330-160-94=155×4-338=778-(369+378)=418-184×2=569-250×2=237-(287-200)=189×5=378+73-319=348-69×4=347+64=24×7=500-31×3=83+201+529=422×3-393=131×(442-436)=41×(454-448)=540-38×9=269-157-72=172+183-79=207-84+148=206×(197-189)=200-59=529+325-73=301-45-214=2/7-1/7=523+92=177×(385-381)=318-65+63=618×3-672=284-192+265=382-251+195=432+490-333=918-39+627=284-70=741-579+315=59-(174-127)=555+290+515=932-179-372=82×5=420-264+71=373×4-817=757-(246+423)=93+599+214=217+496-692=881×(795-791)=679-343-298=775-(401-185)=119×3+660=357+353=45×5+234=68+(196-166)=852+214×4=161+443×2=488-(161+284)=45×(404-398)=707-354+15=551×4-792=721-532-145=110×3=856-381-222=451+914=204+221=194+259=166-14×6=638×7-851=103+135+262=271+147+327=105+19=434×2-563=78×4+207=838-626=201×(119-116)=256×3-264=70×(204-197)=305+162×3=237+290+274=302×8=494-320=309+87=254+858+169=458-(197-33)=2/7+3/7=471-42×4=160+133×3=343-161-46=824-383=16×2=755+678+821=496-183-307=660-107×4=198-(298-287)=2/4-1/4=126×7+188=461-368-56=674-581=874-99×5=164×(321-316)=201+45+536=948-372×2=308×2-67=827-272-277=735×3-970=937-(250+194)=358-273=863-418×2=471-(322+69)=431×(893-889)=493-209-238=1/4+2/4=355×(593-585)=21×8=318-69×2=499-(28+163)=3/7-2/7=592+637+619=320-(316-73)=34×5=48+(387-48)=940+983-551=895-(362-74)=83+(426-14)=930+814=789-74=902-380=63+95=757×7-872=237+(387-300)=325+167-275=328×3-163=218×(98-94)=122+296=548-47×4=89+160-143=115×3-291=34+63-37=487-(237+242)=909×5=381-339+107=181×2+429=76+364=741-(203+113)=732-91-522=324-(475-189)=49×(465-461)=80×2=219-22×3=134×(68-63)=564+216×3=814×3=12×(435-426)=889+904=236×(416-412)=580-101+943=75×(123-116)=269-36-195=449-106×4=722-(808-651)=124×(131-123)=394×7=523+(254-27)=462-131-12=325+55=624×7=772-73×8=940-(315+475)=115×(458-452)=81×6=244×2-368=518×(620-612)=179+830=61×(254-251)=964-72×2=53+621+78=457-16+913=192×5-31=161×6=374-26×2=480-(345+110)=14×5=341+401+241=147+907+592=427-419+85=671-165×3=45+193-13=807+947+764=524+318=3/7+2/7=93×(463-458)=242-95+146=19×7+540=192-(82+96)=205×8-253=891-(691-498)=245-20-147=91×(490-483)=303+162=168×4+288=961-(375+396)=322×8=978-684=335+341+48=845-(871-796)=916×2=306+102-123=693×8-557=47+116=245+995-278=411-10=643+259×3=370+24-191=454-166-34=113×4-319=335-59+642=887-202×2=277-(355-173)=825-806=949-576-318=479+(163-34)=968×7=294-114×2=499×2-414=5/8-1/8=393+69-50=986×6=443-(273+118)=694+935=65×3-176=100+435=504×3=97×4=51×6=319+12×7=589-290=397-67+30=27+(234-163)=816+356×2=349-164=181-64+50=340-131+46=271-38×5=826×6=592-183×2=438-(360-130)=375-(482-309)=444-(365-341)=631-339=453-240=190×2+227=701-19×8=4/7-1/7=101×2=543+(385-75)=181×4-580=416+(452-391)=882-(880-869)=184-(158-52)=432-10×8=259+171=404+61-296=612-329+869=318×(358-355)=852×8-778=715-324-60=287×5-641=406-(209+100)=70×(257-251)=832×(853-848)=152×6-197=178×4-291=488-26×2=445-(131-79)=22×9-47=734×(499-495)=864×4-790=369-131=131+94×7=399+88+258=303-(242+52)=689-(39+89)=884-104×8=969-(509-284)=824-(300-265)=755×6-98=238+66+550=463-(565-547)=842+113+706=871-(218+179)=273+(471-41)=668+166+34=815×5=570-483+563=37+203+58=370-349+133=695+(518-152)=712-258+87=315+(256-138)=279+90×8=197-(463-280)=862+22+45=317+(457-282)=27×(575-567)=884+(941-54)=343×2=166×5=316+198=390-227-133=735-204+454=261×3=408×4=445+137-446=522+827+905=350+311×2=443+(283-91)=495-74+16=397+72×4=132×(368-362)=769+671+512=324-98×2=495-206-279=62+343=208×3+66=666-423-149=283+97-109=675-(487+151)=795-69×4=679-(471-82)=710-(736-604)=112+101=449-71×2=918×(807-802)=311-37×5=85-40+197=858-75×2=728-136-140=11+76×4=963-233+738=37+368-81=676-92×7=666+363-191=425-(425-218)=178×2+70=412-23-37=19×(401-392)=2/6+3/6=546×8=138-19×2=67+312=82×(160-156)=551-471+60=58×8-371=585-468=553+124×5=247-(122+115)=265×3-425=76-25×2=934-293+930=770-(297+437)=76+(467-253)=573×4-321=59+216-45=738-89-345=222+74+158=557×(914-907)=938-827+969=471-38-63=373-271+350=78×9+747=351-(151+50)=632+135×4=840+184+835=83+(776-301)=56×5=203×3-523=405-209=60×(194-191)=90×(229-222)=434-(478-225)=780-63×2=234+235+250=502-220=219-102×2=301+789+275=344-106=538×(967-959)=145-23-121=448-(85+162)=211×(462-458)=476-37-323=138-(201-165)=647-237×2=331×3-199=643×6-404=385-(218+145)=313-85=82×6=20+20=466-51×2=203+721+627=439-161+205=150-(399-370)=800-(528+216)=69-(409-341)=783×(781-776)=198+139=927-190-33=380-(439-233)=308+(367-50)=888+500×2=899+599-326=57×5+256=458-167=917-25-180=650+(926-646)=630-95-509=61+(345-184)=648-(762-599)=89-69+461=448-(489-107)=660-(30+580)=43+113×6=465-222-226=407-21×9=312-160+289=18+(469-158)=211-(198-63)=141×(134-129)=165+236×2=481×2-666=568-54-28=648+(135-30)=484-404+993=838-(49+54)=192×4+920=670+439+432=83×5+212=33×(269-264)=111+(335-290)=84+404=280×(750-742)=564×7-27=318×2+130=446×(529-520)=323+417-513=590-342+683=248+114=105+769+990=206+162=285-63=326-34×9=292+98=459+343-264=95×2=476-44×9=723-378+954=197-13+10=163-(12+50)=676+889-712=983-(197+627)=372-279+83=851+248×4=488×8-410=672-(571-371)=727-(371+304)=820-117=142+218=789×9-806=844-(695-591)=参考答案311×8=2488238+104=342447+(266-207)=506839+527-947=419950-57×6=608811+995+270=2076465-204-26=235913-(46+652)=215237-191=46272-(29+228)=15311×3-671=262826×(372-366)=4956408-(253+27)=128165×7-264=891336+412+278=1026676×(927-918)=6084915-17+158=1056488-445-43=0475-84-224=167966×(165-159)=5796435-94=3412/8-1/8=1/8369+343=712579-90-438=5199×4-386=10689+141-289=541665+(542-522)=685134-106+378=406731-473=258695-77-147=471377-123=254233-146=87901-530-335=36917-312=605303+762-718=347317×2+168=802263-120+145=288265+837+192=129460×2+47=167882+674-323=1233467-46-25=396754×4-50=2966530×(557-550)=371077+(441-386)=132272+305+12=589374+837-225=986109×(63-60)=327880-736+29=173903-(300+479)=124649×2=1298844-556-249=39221-(248-63)=36122+321-10=433205+890-37=1058227+262=489919-(675-63)=307445×2-766=124570×3-302=1408486+(849-342)=993115+(398-264)=249380×2=760801+(973-515)=1259489-98=391902×4-469=3139547+930+527=2004487-(313+17)=157428+(443-343)=52814+371-167=218545+664=1209248+112+294=65435×9-232=834/5-1/5=3/517+(592-29)=580141+315-351=105164×6=984206×4-525=299264-130+264=398311×7=2177167×(426-423)=50179×3+21=258930+(976-22)=1884130+401+838=136924+(253-207)=70894-(683-328)=53947×8+55=431272+122=394135×(259-254)=675426-(10+328)=88106-92+374=388879-671+466=674264-13=251776-40×3=656617×(228-220)=493666+110×2=286335+(290-159)=466127+353=480380+113-437=56130+67-111=86499-80=419135-69=66400-110×2=180774-(220+442)=112487-(989-916)=414637+(539-233)=943121+324=445112+260-157=215172+201×4=976884+205×3=1499101+219+680=1000798×(148-144)=3192184+61×9=733477-(46+109)=322524-495=293/5+2/5=1507+682=1189648-(753-171)=66929-138=791152+(82-70)=164446-(384-217)=279252-160-72=20966+410=1376323+(492-320)=495264-(168+90)=6457-18×4=38569×9-576=45293-39×7=20339-(375-340)=304570-271=29938×6-226=2236×8-888=1000136×5=68087+18×6=195400+192=592161+129=290243+610-259=594459×2-196=722139-13+103=229532+34+756=1322402-141=26148+255=303767-(245+308)=214762-(488+211)=63352+572+831=1755486+548-215=819230-176=545/8+2/8=7/8498×2=996820-121+335=10346/9+3/9=139×2=78932×(310-304)=5592694-76×2=542406×2+302=1114436-(362-42)=116565-(979-880)=46673+22+452=547814×4=3256492-(118+304)=70835+717+709=2261217+75-139=153489-(137+56)=296400-62×3=214165+742+143=10503/9+4/9=7/9118+173=291491×4=1964645+(923-371)=1197408-49×6=114220×4-535=345250-50-118=8285+239=32446+(529-128)=447535+839+815=2189866-273+284=877443×2-566=320474-156×2=162799-106+458=115150+341-153=2381/5+3/5=4/5255+91×8=983369-327+286=328156+30×5=306312-181=131451-249-53=14957+256-260=5352×2=104610-555-48=7602-426+539=715370-(255-200)=315663-(458+57)=148510+405-851=64495+854-316=1033299+71+242=612618+(888-838)=668282×3-117=72951×2+730=832696-209+583=1070143+227=3703/6+2/6=5/6356-237-29=90375×3-359=766661×(745-740)=3305926-579-298=4963×2=126316-(206-173)=283299+29+279=6072/8+4/8=6/8270-(449-248)=69438+526=964489-401+56=14449+(399-293)=155481-256=225966-(848-620)=738322-(81+132)=109988-(532-333)=789374-42×8=38193+(315-120)=388221-26-111=84543+441=98449×4=196171×5+129=984513+522+375=1410842+531=137320+359-265=114550+861+391=1802486-328+178=336382-23=359346-267=79130×6=780239×3+246=963897+757-959=695447-(73+69)=305357×(213-205)=2856259+86+22=367137×2=27478×4=31215×7=105445-54×8=1323+21=4462×9+615=1173302-85=217490-230×2=30495-(534-153)=114689×5-165=3280625-(91-53)=587309-(493-471)=287292×8=2336379×2-186=57251×7+65=422362-199+147=310464-79-115=2709/10-1/10=8/10354+24-198=180530+42×7=82450+140×6=890241×3+230=953427-378+202=251683+898+680=2261761+521=128241×9+469=83828×2=56998-240=758380-18×9=218413-(91+81)=241347-147=200481-80-136=265791+(518-364)=945812×4=3248435-(144+89)=202418+272+246=936465-(413-351)=403510×(643-634)=4590755+909=1664471+(970-464)=977282+18+684=984993-831=16215×2+422=452208+(317-255)=270118+(235-231)=122401-(105+177)=119477+15-309=183407+(247-229)=425102-67=35462-(256+48)=158310+(723-66)=967187+(287-100)=374521-263=258213+36-119=13063+343=406425-(226+111)=88101×(454-448)=606232+670-126=776740-(848-437)=329826-251-380=195367+(471-63)=77565+169=234828-281-81=466452-414=38650-(19+161)=470800+208×2=1216334+30-33=3314/8-2/8=2/867×(345-338)=4693/7-1/7=2/765+301-66=300979-12-428=539439+(442-274)=607629-206×3=11298-(63+140)=95519+127+338=984604-(190+34)=380506-(416+13)=7784×(481-477)=336617-374=243419+989+211=1619665+230-420=475322-274+75=123418-(33+49)=336870×(439-432)=609096×6-109=467527+(509-387)=649167×4+47=71593×7-651=0128+226=354365-(82-74)=357122×6+325=1057335+350-298=387311+129+255=695167+180+101=448560+477=1037326-(433-107)=0437-131-260=46477-43×4=305827-(60+379)=388439+318+96=85336+(436-74)=398104+134=238872-49+309=1132481+(272-248)=505376-144=232711+871-897=685928-754=174205-129=7672×6=432353-100=25347+26+245=318478-(170+55)=253653+406-546=513219-51+276=44422×7=154347+(591-258)=680691-691+571=571403-239-16=14895+123-59=159442-(375-143)=21046×8-137=231345+250×2=845321-(817-717)=22161×4=244627-111+301=817952-322-296=3342/6-1/6=1/6372-282=90109+(898-225)=782348×2=696662-(788-590)=464724+502=1226266+(325-114)=477892+11-47=856808-85-603=120106+326-412=20103+(868-660)=311690+(347-294)=743991-(729+39)=223374-(317-251)=308672-(292+264)=116924+750+500=217452×5=260783-21-229=533492+(211-24)=679331+551-10=872650-39×7=377899-165×4=239649+151-58=742390-233-85=72297+75=372527-123=404984-67×5=649763-(626+76)=61220-200=20201-131=704/8-3/8=1/819×(984-981)=57430-132-129=1694/7+2/7=6/7593+65+261=91950×6=300330-160-94=76155×4-338=282778-(369+378)=31418-184×2=50569-250×2=69237-(287-200)=150189×5=945378+73-319=132348-69×4=72347+64=41124×7=168500-31×3=40783+201+529=813422×3-393=873131×(442-436)=78641×(454-448)=246540-38×9=198269-157-72=40172+183-79=276207-84+148=271206×(197-189)=1648200-59=141529+325-73=781301-45-214=422/7-1/7=1/7523+92=615177×(385-381)=708318-65+63=316618×3-672=1182284-192+265=357382-251+195=326432+490-333=589918-39+627=1506284-70=214741-579+315=47759-(174-127)=12555+290+515=1360932-179-372=38182×5=410420-264+71=227373×4-817=675757-(246+423)=8893+599+214=906217+496-692=21881×(795-791)=3524679-343-298=38775-(401-185)=559119×3+660=1017357+353=71045×5+234=45968+(196-166)=98852+214×4=1708161+443×2=1047488-(161+284)=4345×(404-398)=270707-354+15=368551×4-792=1412721-532-145=44110×3=330856-381-222=253451+914=1365204+221=425194+259=453166-14×6=82638×7-851=3615103+135+262=500271+147+327=745105+19=124434×2-563=30578×4+207=519838-626=212201×(119-116)=603256×3-264=50470×(204-197)=490305+162×3=791237+290+274=801302×8=2416494-320=174309+87=396254+858+169=1281458-(197-33)=2942/7+3/7=5/7471-42×4=303160+133×3=559343-161-46=136824-383=44116×2=32755+678+821=2254496-183-307=6660-107×4=232198-(298-287)=1872/4-1/4=1/4126×7+188=1070461-368-56=37674-581=93874-99×5=379164×(321-316)=820201+45+536=782948-372×2=204308×2-67=549827-272-277=278735×3-970=1235937-(250+194)=493358-273=85863-418×2=27471-(322+69)=80431×(893-889)=1724493-209-238=461/4+2/4=3/4355×(593-585)=284021×8=168318-69×2=180499-(28+163)=3083/7-2/7=1/7592+637+619=1848320-(316-73)=7734×5=17048+(387-48)=387940+983-551=1372895-(362-74)=60783+(426-14)=495930+814=1744789-74=715902-380=52263+95=158757×7-872=4427237+(387-300)=324325+167-275=217328×3-163=821218×(98-94)=872122+296=418548-47×4=36089+160-143=106115×3-291=5434+63-37=60487-(237+242)=8909×5=4545381-339+107=149181×2+429=79176+364=440741-(203+113)=425732-91-522=119324-(475-189)=3849×(465-461)=19680×2=160219-22×3=153134×(68-63)=670564+216×3=1212814×3=244212×(435-426)=108889+904=1793236×(416-412)=944580-101+943=142275×(123-116)=525269-36-195=38449-106×4=25722-(808-651)=565124×(131-123)=992394×7=2758523+(254-27)=750462-131-12=319325+55=380624×7=4368772-73×8=188940-(315+475)=150115×(458-452)=69081×6=486244×2-368=120518×(620-612)=4144179+830=100961×(254-251)=183964-72×2=82053+621+78=752457-16+913=1354192×5-31=929161×6=966374-26×2=322480-(345+110)=2514×5=70341+401+241=983147+907+592=1646427-419+85=93671-165×3=17645+193-13=225807+947+764=2518524+318=8423/7+2/7=5/793×(463-458)=465242-95+146=29319×7+540=673192-(82+96)=14205×8-253=1387891-(691-498)=698245-20-147=7891×(490-483)=637303+162=465168×4+288=960961-(375+396)=190322×8=2576978-684=294335+341+48=724845-(871-796)=770916×2=1832306+102-123=285693×8-557=498747+116=163245+995-278=962411-10=401643+259×3=1420370+24-191=203454-166-34=254113×4-319=133335-59+642=918887-202×2=483277-(355-173)=95825-806=19949-576-318=55479+(163-34)=608968×7=6776294-114×2=66499×2-414=5845/8-1/8=4/8393+69-50=412986×6=5916443-(273+118)=52694+935=162965×3-176=19100+435=535504×3=151297×4=38851×6=306319+12×7=403589-290=299397-67+30=36027+(234-163)=98816+356×2=1528349-164=185181-64+50=167340-131+46=255271-38×5=81826×6=4956592-183×2=226438-(360-130)=208375-(482-309)=202444-(365-341)=420631-339=292453-240=213190×2+227=607701-19×8=5494/7-1/7=3/7101×2=202543+(385-75)=853181×4-580=144416+(452-391)=477882-(880-869)=871184-(158-52)=78432-10×8=352259+171=430404+61-296=169612-329+869=1152318×(358-355)=954852×8-778=6038715-324-60=331287×5-641=794406-(209+100)=9770×(257-251)=420832×(853-848)=4160152×6-197=715178×4-291=421488-26×2=436445-(131-79)=39322×9-47=151734×(499-495)=2936864×4-790=2666369-131=238131+94×7=789399+88+258=745303-(242+52)=9689-(39+89)=561884-104×8=52969-(509-284)=744824-(300-265)=789755×6-98=4432238+66+550=854463-(565-547)=445842+113+706=1661871-(218+179)=474273+(471-41)=703668+166+34=868815×5=4075570-483+563=65037+203+58=298370-349+133=154695+(518-152)=1061712-258+87=541315+(256-138)=433279+90×8=999197-(463-280)=14862+22+45=929317+(457-282)=49227×(575-567)=216884+(941-54)=1771343×2=686166×5=830316+198=514390-227-133=30735-204+454=985261×3=783408×4=1632445+137-446=136522+827+905=2254350+311×2=972443+(283-91)=635495-74+16=437397+72×4=685132×(368-362)=792769+671+512=