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710×5-414=197-114=823-(241+322)=299-37=38+671+113=202+286=583-398+209=4/7+2/7=183×2+857=64×2=3/8+2/8=896-29-75=439-408+198=20×6+39=154+106=869+604-614=453-16×3=27×(110-106)=238-143=309-30×4=720-(711-228)=324+154=53×(34-27)=36+365-162=340-259=871-811+251=451-(43+357)=272-262+64=711×5=432-(249+59)=722×(37-33)=931-(982-740)=228-38=231-132+224=424+(752-412)=566×(689-686)=354+138-352=854×3=569+227+107=420-135×2=790-538-187=277×(541-537)=676-61×6=295×2=480-116+46=825-(218+462)=465-94-269=772-248-393=3/9-2/9=617-(661-293)=899-435-11=791-80×5=421-143+41=438+83=359+166+474=208+(721-639)=312×4-317=243+113-106=405-168+821=378-287-81=280-75-138=343+(185-55)=733-220×2=357+183×4=346-21×8=106+(99-18)=298-278+453=239×2=560+989+167=84+(236-235)=794+862-960=231×4-550=948×3=716-103-582=655×8=463-(225+72)=506-426=808-41+140=341×(100-91)=398-(201+137)=158×6-200=321×2-370=253+149+536=108-(55+16)=242×8-96=311-144=220×3-433=967-28×6=386+(469-182)=21+808-604=114×5=18+(639-568)=338+270×2=206×7-179=292-25×6=304-172+150=635+778-140=967-660=644×2-45=261+130=494-(408+55)=37×9+328=395+18×2=147+340+205=70-(442-437)=18×6=463-268=278-203+123=49×7=606+703-297=23×6+851=4/6+2/6=458-11×9=228-39×2=438+348+81=464×4-262=22×8-151=549-539=195+80-253=248-74-165=960×(265-258)=469-(77+105)=134-39×3=257-205+261=214+55+884=915-132-223=24+470-217=493-74=906×6-543=455-15-147=672×(201-194)=689+984=156-(194-145)=104-17=417-82-133=612×2-954=718-101-78=642×(774-766)=53-21=845-518-212=314+70-372=296-(51+81)=282+746+544=539×3-505=363-76×2=473+(161-27)=964-917-40=924+(917-711)=822+619-462=720-(317-172)=60×(333-327)=4/6-1/6=743+308×3=441×(27-22)=931+751+441=160+146=201-(184-178)=562+11+250=124×2=784-595=760-(420-141)=1/5+2/5=364×(493-484)=370×3-902=979-(414+98)=738-(313-97)=354-273+265=61×7=942-760+727=637+(724-338)=19+157+290=975-472-354=4/8+3/8=588×2-478=957-(708-220)=653-385-153=254-80=217×4+761=981+12×5=88×5=623+240+377=15+137×4=35+145=85+745+257=127+62×7=364-67×5=863-(364+102)=87×(352-343)=72+(308-32)=604-310+440=411+351=795+721-785=362-15×3=952×4=310+132×2=269-86-143=911-23+91=2/6+3/6=855-498+845=291-(42+249)=593-88×2=182+285-391=79×3-208=390-(26+240)=28+155-126=53+152+620=468-(90+91)=153+(583-457)=179-162+148=482×(972-967)=860-26+604=655×7=861-629=842×(382-373)=207×5-476=405+488-174=281-38=127×5+275=238-99+357=79+37×3=777×5-774=951-253=445-(697-259)=350+30-103=50×(336-329)=337+679=887-(534-281)=247×(735-727)=82×8-166=232×(160-156)=394-133-214=960+477+582=178+586=16×5=995-165×2=136-42=584-178-162=438-(65+79)=278×2-229=514×5-201=399-307+118=144×4=228-10+209=236+81=4/7-2/7=498×5=200×7=213-87+257=794-289×2=66×(172-165)=629+468-600=250+387=468-219×2=686+(794-668)=244×(461-457)=361-235-52=425-(54-37)=818-806+490=843×(466-463)=661+34×2=224+55×2=653×6=443×6=36×6+557=937-252×2=639-65+767=157×(319-315)=737-(873-782)=740×7-332=513+(85-47)=245-147+915=828-(356+35)=193+414+315=415-224-134=59+307=460-355=112+709+648=350+371-123=658-225-27=570-(311+188)=476-(77+128)=782-671=485-448=137+264=493-136=274-(393-309)=109×4=743-75=285+138+369=444-82×2=4/7-3/7=510+(723-88)=126+(494-309)=270-51×4=308-(32+181)=284+(646-474)=142+141+132=176-49-25=3/5-1/5=157-(212-142)=491+645+391=859-28×9=495+492=212×4=12×4+29=814-172-552=29+324-146=131-(375-324)=53×6-14=123+75×6=115×6+996=84×8=872+(890-201)=995-785+415=682×3=337-59×5=882×3-343=318-170=333×3=310-(53+68)=216+196=284-65×4=224+980-97=15×8=332+126=166×(255-250)=536-182+762=85×8-395=34+(404-211)=461-31=309+158=651×6-370=372-(402-250)=924-33+267=817×(722-718)=791-550=426×3-506=979-373×2=190-13×8=380-206+247=337-(382-348)=161-80-12=401-320=278+(393-375)=870-583-234=459-(361-335)=511+463+282=813+915-758=49+(593-124)=157+58+956=900+296+337=466+731-194=737-(41+180)=436-(238+197)=897-635+687=112+229=203×2=241+175=712-387+983=501-(901-625)=418-(490-355)=88+(768-291)=512+(694-196)=656+983-76=90+15+479=146+154-262=967-566+407=548×8=491+(305-296)=133×6-686=806×2=181×3+426=9/10-1/10=221-(379-325)=187×(34-29)=465-145+74=289-(193-147)=211+171=358-80-218=79+145+339=256+205-151=53×(518-513)=815-(598-360)=166+308=72×8-46=727-19-294=585+35+114=415+54-397=369-70×4=94×(393-385)=626+125+151=237+248=150×(449-446)=962-909=649-59=106×3=4/8+2/8=431-102-28=346×5=393-(58+287)=610-(83+202)=491-146+351=889-(238+296)=623-283=985-321-70=126×(615-610)=230+(478-229)=53×5+924=449-(83+80)=165×3+70=239-23×9=674-(394+222)=40+43×6=997-834=507-378=641×(811-802)=738×(342-338)=54×(23-14)=913-137+210=16+(489-56)=81×9-277=370+138×3=283+(139-25)=13+(417-49)=117×4+236=767-51×8=667-255-46=151+83=393+708+65=536-(14+365)=147-(340-233)=171×(473-469)=181-18×5=36+(175-31)=3/7+2/7=656-49×7=211×3=481+(246-84)=308-267+274=402-(66+296)=81×7-557=120+(234-138)=175×(294-291)=558-(825-430)=215-21-158=523+192+118=405+33-398=533-(676-557)=63×6+14=447-26×6=467-(154+196)=481-(383-267)=16×3=203-59×2=656×5-474=866-(665-50)=81×(302-293)=696×7-645=163-46+290=134+178-152=756×9=543+(312-140)=253-93=181+165=701+(500-375)=69+(281-227)=497-(373-66)=484+393=872-626+396=56+235-39=303-(474-388)=333-318+298=146+(434-412)=953-(975-227)=162+118=156×6-138=767-(324-73)=364+(403-141)=281-37-152=440+101×6=514-(224+243)=264×(725-721)=46+170×4=149×3=786-(92+176)=610+117=241+257=74×7-45=815+48×9=578+(890-241)=490-26×8=485×6-77=711+(948-215)=995-113+285=443-31=314+(472-270)=639+(981-199)=179+254-44=77+273=449-69-216=491-(76+127)=169+123=400-165+297=818+54×7=140-(307-261)=302-38=236-88=807+111+272=22×9=200-11×9=416×2-495=485+930=674-181+961=285×2+996=642-(407-121)=433-122×3=375-(136+196)=570+571=173×3=71×7+587=340-27×9=948-866=527×3-465=565-113-120=461+83×4=432+38-165=866-104=526+120=53+107=127+229-102=88+54+456=83×4=460-423+130=718-344=250+289+394=753+909+236=380+379=106×(813-807)=478-(224-28)=422-48×7=109+282-299=881×(68-64)=35×2=405-345=91×6=294+(440-121)=524+953=928-396+329=906-(331+97)=349-(175+74)=92×5=224-78+77=26×5+344=107×(77-71)=53×(323-319)=492+(253-232)=212-133+243=257+313-266=12×9+585=255+62=999-(45+439)=480+95×4=65+592+68=150+431=408-42-93=788×(853-845)=399-(106+224)=316+454=306+765-894=762-572=56×(272-269)=173-(112-90)=334+105=693-584=144+(325-144)=325×9=105×8-181=425-87-289=3/8-2/8=502+490=570-(16+170)=792-433-358=42×4+293=734×6-904=524+656+331=474-86×4=251-237=458-(11+131)=289-28×6=263-(209+34)=822-168-43=94×5-372=478×2-277=403-52×5=186×2-304=120×(197-191)=306+(88-27)=21+419-156=285+226=396-(884-852)=108×9=116×5-349=276-25×7=225×8-791=42×8=881-363-268=411+158+57=693-72×4=230-224+228=184+(412-378)=920-(145+589)=353+663-876=481-(345+121)=61×3+123=200+709+762=726-34×2=132+807+42=142+298-209=51+40+300=180+113+401=756-465+484=572+(782-340)=520-139-37=548-(620-270)=69×2=372-123=930-(243+68)=291-186-83=188+794+317=115-(279-269)=12×(186-179)=376-34×4=473-266-80=132×7-338=719+470-814=99×(305-297)=975+(700-583)=640-44+211=248-153=597-(78+141)=335-(112+60)=288+90=393+81-383=198+798+558=610+702+283=755+121+840=104+63×9=579-(659-477)=466-119-158=687+598=30×7+77=677+34+110=584+25+278=328×3+732=775-118-252=313+637+22=61×3+390=85+307=310-(93-79)=222+(469-50)=307+190+61=129+791+211=426-(653-228)=320+61×8=652×(354-351)=639-153×3=785+968-62=308-(277-185)=731+22×9=810-18×4=583-66×3=963-(222+184)=415-(251-89)=201+38+535=248+55-242=448-95-290=331-(252+39)=656+539-521=528+668+324=754×(602-596)=156-13×5=358-63=538×9-550=719-74×8=848-194×2=247×(353-350)=414-273=969×(438-435)=804-49+344=408×7-623=365×7-57=726-97×5=385-(355-175)=944-(911-414)=634×(554-549)=76×7+230=133-23=306+33-76=433-89=233-(70+57)=434-(224+84)=574×6=73×(724-716)=351-192+294=154+275-294=774-(591-583)=947+672-748=111×9=913-19×6=467-(161-81)=16+(462-164)=172+545=442-53×6=279-232-43=37×9=375-15×3=466-232=684+790=2/4-1/4=983-(13+135)=755+135=77×8-259=334+(298-97)=83×(392-385)=200-(118-10)=493-(135+149)=219+546=266-(175+71)=970+218-587=15×(148-144)=327+114-356=332-19-234=653-213=338+80=93×3-85=300+45×2=273-231+261=450×2+82=807-46-442=37-37+286=205-(292-232)=588-(916-756)=782+927-317=389-346=379-255+167=371+116-452=1/9+4/9=1/4+2/4=116×(372-366)=790-351+528=163-53-62=10×5+483=372-233=122+210-188=845-287-56=455-144+168=525+988+79=534-262=262+144=293+72×5=448-(101+76)=170×5-438=103×(408-404)=141+101=153+362+281=685×5-635=183×2+213=570+30×3=487+73×4=667+31-35=202+920+435=707-345=472+(999-702)=118×6=121×3=451×2=270-(373-108)=2/6-1/6=399×2-145=963-(995-355)=43+(379-126)=133×2-185=17+123+518=503+55×2=764+558-289=143+333=399-92-66=975-(126+38)=321-16×6=345+132=418-184=305×3-358=376+96-429=306-(153+98)=77+54=245-74+151=110×8-476=847+449=412×2=108×4=40×8+426=5/8-2/8=165+311=84×(372-367)=485-128-291=278+950-84=299-97×3=1/7+4/7=699+(386-344)=218-45-20=413-(162+250)=376-84=450-(354-178)=184×4=104+314-104=3/8-1/8=334+(830-762)=564-422=280+(480-172)=340-20×2=257×2+987=926-602=726+(995-672)=470-108-283=399+385+109=28+282×3=264+104-183=745+(937-346)=539+(866-172)=406+(395-293)=909×(889-883)=613+(766-497)=284×3=369×8=3/7-2/7=71+375-208=233-(481-300)=1/8+2/8=257+465=31+667+262=701×4-46=318-155-157=676-242-431=509-(909-456)=173×5=348×2-139=146-(462-374)=710+160+825=586-(37+234)=452-(702-639)=410-27-87=933-716-80=217×2=489-58×7=480+11×4=198×(120-116)=316+175-410=867×(784-776)=556-(237+264)=332×(833-829)=406-165+44=162×3=84+829+755=310×2+85=参考答案710×5-414=3136197-114=83823-(241+322)=260299-37=26238+671+113=822202+286=488583-398+209=3944/7+2/7=6/7183×2+857=122364×2=1283/8+2/8=5/8896-29-75=792439-408+198=22920×6+39=159154+106=260869+604-614=859453-16×3=40527×(110-106)=108238-143=95309-30×4=189720-(711-228)=237324+154=47853×(34-27)=37136+365-162=239340-259=81871-811+251=311451-(43+357)=51272-262+64=74711×5=3555432-(249+59)=124722×(37-33)=2888931-(982-740)=689228-38=190231-132+224=323424+(752-412)=764566×(689-686)=1698354+138-352=140854×3=2562569+227+107=903420-135×2=150790-538-187=65277×(541-537)=1108676-61×6=310295×2=590480-116+46=410825-(218+462)=145465-94-269=102772-248-393=1313/9-2/9=1/9617-(661-293)=249899-435-11=453791-80×5=391421-143+41=319438+83=521359+166+474=999208+(721-639)=290312×4-317=931243+113-106=250405-168+821=1058378-287-81=10280-75-138=67343+(185-55)=473733-220×2=293357+183×4=1089346-21×8=178106+(99-18)=187298-278+453=473239×2=478560+989+167=171684+(236-235)=85794+862-960=696231×4-550=374948×3=2844716-103-582=31655×8=5240463-(225+72)=166506-426=80808-41+140=907341×(100-91)=3069398-(201+137)=60158×6-200=748321×2-370=272253+149+536=938108-(55+16)=37242×8-96=1840311-144=167220×3-433=227967-28×6=799386+(469-182)=67321+808-604=225114×5=57018+(639-568)=89338+270×2=878206×7-179=1263292-25×6=142304-172+150=282635+778-140=1273967-660=307644×2-45=1243261+130=391494-(408+55)=3137×9+328=661395+18×2=431147+340+205=69270-(442-437)=6518×6=108463-268=195278-203+123=19849×7=343606+703-297=101223×6+851=9894/6+2/6=1458-11×9=359228-39×2=150438+348+81=867464×4-262=159422×8-151=25549-539=10195+80-253=22248-74-165=9960×(265-258)=6720469-(77+105)=287134-39×3=17257-205+261=313214+55+884=1153915-132-223=56024+470-217=277493-74=419906×6-543=4893455-15-147=293672×(201-194)=4704689+984=1673156-(194-145)=107104-17=87417-82-133=202612×2-954=270718-101-78=539642×(774-766)=513653-21=32845-518-212=115314+70-372=12296-(51+81)=164282+746+544=1572539×3-505=1112363-76×2=211473+(161-27)=607964-917-40=7924+(917-711)=1130822+619-462=979720-(317-172)=57560×(333-327)=3604/6-1/6=3/6743+308×3=1667441×(27-22)=2205931+751+441=2123160+146=306201-(184-178)=195562+11+250=823124×2=248784-595=189760-(420-141)=4811/5+2/5=3/5364×(493-484)=3276370×3-902=208979-(414+98)=467738-(313-97)=522354-273+265=34661×7=427942-760+727=909637+(724-338)=102319+157+290=466975-472-354=1494/8+3/8=7/8588×2-478=698957-(708-220)=469653-385-153=115254-80=174217×4+761=1629981+12×5=104188×5=440623+240+377=124015+137×4=56335+145=18085+745+257=1087127+62×7=561364-67×5=29863-(364+102)=39787×(352-343)=78372+(308-32)=348604-310+440=734411+351=762795+721-785=731362-15×3=317952×4=3808310+132×2=574269-86-143=40911-23+91=9792/6+3/6=5/6855-498+845=1202291-(42+249)=0593-88×2=417182+285-391=7679×3-208=29390-(26+240)=12428+155-126=5753+152+620=825468-(90+91)=287153+(583-457)=279179-162+148=165482×(972-967)=2410860-26+604=1438655×7=4585861-629=232842×(382-373)=7578207×5-476=559405+488-174=719281-38=243127×5+275=910238-99+357=49679+37×3=190777×5-774=3111951-253=698445-(697-259)=7350+30-103=27750×(336-329)=350337+679=1016887-(534-281)=634247×(735-727)=197682×8-166=490232×(160-156)=928394-133-214=47960+477+582=2019178+586=76416×5=80995-165×2=665136-42=94584-178-162=244438-(65+79)=294278×2-229=327514×5-201=2369399-307+118=210144×4=576228-10+209=427236+81=3174/7-2/7=2/7498×5=2490200×7=1400213-87+257=383794-289×2=21666×(172-165)=462629+468-600=497250+387=637468-219×2=30686+(794-668)=812244×(461-457)=976361-235-52=74425-(54-37)=408818-806+490=502843×(466-463)=2529661+34×2=729224+55×2=334653×6=3918443×6=265836×6+557=773937-252×2=433639-65+767=1341157×(319-315)=628737-(873-782)=646740×7-332=4848513+(85-47)=551245-147+915=1013828-(356+35)=437193+414+315=922415-224-134=5759+307=366460-355=105112+709+648=1469350+371-123=598658-225-27=406570-(311+188)=71476-(77+128)=271782-671=111485-448=37137+264=401493-136=357274-(393-309)=190109×4=436743-75=668285+138+369=792444-82×2=2804/7-3/7=1/7510+(723-88)=1145126+(494-309)=311270-51×4=66308-(32+181)=95284+(646-474)=456142+141+132=415176-49-25=1023/5-1/5=2/5157-(212-142)=87491+645+391=1527859-28×9=607495+492=987212×4=84812×4+29=77814-172-552=9029+324-146=207131-(375-324)=8053×6-14=304123+75×6=573115×6+996=168684×8=672872+(890-201)=1561995-785+415=625682×3=2046337-59×5=42882×3-343=2303318-170=148333×3=999310-(53+68)=189216+196=412284-65×4=24224+980-97=110715×8=120332+126=458166×(255-250)=830536-182+762=111685×8-395=28534+(404-211)=227461-31=430309+158=467651×6-370=3536372-(402-250)=220924-33+267=1158817×(722-718)=3268791-550=241426×3-506=772979-373×2=233190-13×8=86380-206+247=421337-(382-348)=303161-80-12=69401-320=81278+(393-375)=296870-583-234=53459-(361-335)=433511+463+282=1256813+915-758=97049+(593-124)=518157+58+956=1171900+296+337=1533466+731-194=1003737-(41+180)=516436-(238+197)=1897-635+687=949112+229=341203×2=406241+175=416712-387+983=1308501-(901-625)=225418-(490-355)=28388+(768-291)=565512+(694-196)=1010656+983-76=156390+15+479=584146+154-262=38967-566+407=808548×8=4384491+(305-296)=500133×6-686=112806×2=1612181×3+426=9699/10-1/10=8/10221-(379-325)=167187×(34-29)=935465-145+74=394289-(193-147)=243211+171=382358-80-218=6079+145+339=563256+205-151=31053×(518-513)=265815-(598-360)=577166+308=47472×8-46=530727-19-294=414585+35+114=734415+54-397=72369-70×4=8994×(393-385)=752626+125+151=902237+248=485150×(449-446)=450962-909=53649-59=590106×3=3184/8+2/8=6/8431-102-28=301346×5=1730393-(58+287)=48610-(83+202)=325491-146+351=696889-(238+296)=355623-283=340985-321-70=594126×(615-610)=630230+(478-229)=47953×5+924=1189449-(83+80)=286165×3+70=565239-23×9=32674-(394+222)=5840+43×6=298997-834=163507-378=129641×(811-802)=5769738×(342-338)=295254×(23-14)=486913-137+210=98616+(489-56)=44981×9-277=452370+138×3=784283+(139-25)=39713+(417-49)=381117×4+236=704767-51×8=359667-255-46=366151+83=234393+708+65=1166536-(14+365)=157147-(340-233)=40171×(473-469)=684181-18×5=9136+(175-31)=1803/7+2/7=5/7656-49×7=313211×3=633481+(246-84)=643308-267+274=315402-(66+296)=4081×7-557=10120+(234-138)=216175×(294-291)=525558-(825-430)=163215-21-158=36523+192+118=833405+33-398=40533-(676-557)=41463×6+14=392447-26×6=291467-(154+196)=117481-(383-267)=36516×3=48203-59×2=85656×5-474=2806866-(665-50)=25181×(302-293)=729696×7-645=4227163-46+290=407134+178-152=160756×9=6804543+(312-140)=715253-93=160181+165=346701+(500-375)=82669+(281-227)=123497-(373-66)=190484+393=877872-626+396=64256+235-39=252303-(474-388)=217333-318+298=313146+(434-412)=168953-(975-227)=205162+118=280156×6-138=798767-(324-73)=516364+(403-141)=626281-37-152=92440+101×6=1046514-(224+243)=47264×(725-721)=105646+170×4=726149×3=447786-(92+176)=518610+117=727241+257=49874×7-45=473815+48×9=1247578+(890-241)=1227490-26×8=282485×6-77=2833711+(948-215)=1444995-113+285=1167443-31=412314+(472-270)=516639+(981-199)=1421179+254-44=38977+273=350449-69-216=164491-(76+127)=288169+123=292400-165+297=532818+54×7=1196140-(307-261)=94302-38=264236-88=148807+111+272=119022×9=198200-11×9=101416×2-495=337485+930=1415674-181+961=1454285×2+996=1566642-(407-121)=356433-122×3=67375-(136+196)=43570+571=1141173×3=51971×7+587=1084340-27×9=97948-866=82527×3-465=1116565-113-120=332461+83×4=793432+38-165=305866-104=762526+120=64653+107=160127+229-102=25488+54+456=59883×4=332460-423+130=167718-344=374250+289+394=933753+909+236=1898380+379=759106×(813-807)=636478-(224-28)=282422-48×7=86109+282-299=92881×(68-64)=352435×2=70405-345=6091×6=546294+(440-121)=613524+953=1477928-396+329=861906-(331+97)=478349-(175+74)=10092×5=460224-78+77=22326×5+344=474107×(77-71)=64253×(323-319)=212492+(253-232)=513212-133+243=322257+313-266=30412×9+585=693255+62=317999-(45+439)=515480+95×4=86065+592+68=725150+431=581408-42-93=273788×(853-845)=6304399-(106+224)=69316+454=770306+765-894=177762-572=19056×(272-269)=168173-(112-90)=151334+105=439693-584=109144+(325-144)=325325×9=2925105×8-181=659425-87-289=493/8-2/8=1/8502+490=992570-(16+170)=384792-433-358=142×4+293=461734×6-904=3500524+656+331=1511474-86×4=130251-237=14458-(11+131)=316289-28×6=121263-(209+34)=20822-168-43=61194×5-372=98478×2-277=679403-52×5=143186×2-304=68120×(197-191)=720306+(88-27)=36721+419-156=284285+226=511396-(884-852)=364108×9=972116×5-349=231276-25×7=101225×8-791=100942×8=336881-363-268=250411+158+57=626693-72×4=405230-224+228=234184+(412-378)=218920-(145+589)=186353+663-876=140481-(345+121)=1561×3+123=306200+709+762=1671726-34×2=658132+807+42=981142+298-209=23151+40+300=391180+113+401=694756-465+484=775572+(782-340)=1014520-139-37=344548-(620-270)=19869×2=138372-123=249930-(243+68)=619291-186-83=22188+794+317=1299115-(279-269)=10512×(186-179)=84376-34×4=240473-266-80=127132×7-338=586719+470-814=37599×(305-297)=792975+(700-583)=1092640-44+211=807248-153=95597-(78+141)=378335-(112+60)=163288+90=378393+81-383=91198+798+558=1554610+702+283=1595755+121+840=1716104+63×9=671579-(659-477)=397466-119-158=189687+598=128530×7+77=287677+34+110=821584+25+278=887328×3+732=1716775-118-252=405313+637+22=97261×3+390=57385+307=392310-(93-79)=296222+(469-50)=641307+190+61=558129+791+211=1131426-(653-228)=1320+61×8=808652×(354-351)=1956639-153×3=180785+968-62=1691308-(277-185)=216731+22×9=929810-18×4=738583-66×3=385963-(222+184)=557415-(251-89)=253201+38+535=774248+55-242=61448-95-290=63331-(252+39)=40656+539-521=674528+668+324=1520754×(602-596)=4524156-13×5=91358-63=295538×9-550=4292719-74×8=127848-194×2=460247×(353-350)=741414-273=141969×(438-435)=2907804-49+344=1099408×7-623=2233365×7-57=2498726-97×5=241385-(355-175)=205944-(911-414)=447634×(554-549)=317076×7+230=762133-23=110306+33-76=263433-89=344233-(70+57)=106434-(224+84)=126574×6=344473×(724-716)=584351-192+294=453154+275-294=135774-(591-583)=766947+672-748=871111