三年級數(shù)學(上)計算題專項練習附答案集錦

三年級數(shù)學(上)計算題專項練習附答案集錦798+(830-144)=152-(102+36)=488×2=313+(488-224)=374-64×4=900-196×4=134×4+361=228+43=731-463-206=739+395+386=63×6=131+755+63=952-(768-270)=680-(106+345)=623-364+60=221+197+345=28×2+445=377+185+152=51-20=846-261-248=147×6-182=411+(417-330)=239×2+444=247-39×3=865+292×2=785+132=561+19+315=31+185×5=375-117=19×(365-362)=584×6=338-(285+48)=374×6=290-140=904-52-559=195+429=607-390-114=442-268-56=606+(602-467)=886×6=393-376+951=134+271-188=928-103×2=289-151+304=27+150×6=481-227=57-12×3=723-575-120=430+133+33=107-47=657-(454-373)=145-(97-87)=57×9+834=840×7=330+(111-110)=918-365=990-459=452-(239-63)=191+75×5=404-30×4=176+(816-255)=491+(361-55)=137×4+546=400-139-250=361-329=93-23=146×(593-589)=650-498-73=898+453-99=839-443=657×7-539=363+(244-16)=281-107+320=222×2+164=840+(593-74)=500×7=584×7-767=541+40+335=16×(447-440)=73+123=702-222-185=31+460-304=182-(34+147)=466-303+144=362-62×2=884×(213-209)=299×(906-902)=120-116+262=300-(37+124)=2/3-1/3=375+33×7=499-107=67×(405-398)=113+31×3=670×6-549=119+165=4/6+2/6=520-(412-72)=389-52-109=890+984-671=214-151+856=406-99-77=62×6+356=3/8+2/8=142-128=487-187×2=842+(761-515)=526+245+102=240×4-108=275-(297-256)=5/7-1/7=103+(299-11)=923-(408+215)=224+581-630=558+839-317=84+90×3=302-64+246=852-167×2=429-25×3=306-(622-571)=51+(122-62)=150+236-249=57+(461-456)=260-(943-889)=295+79=610+223+549=987-26×3=24+28=213×2+495=3/7-2/7=830+(528-163)=945×(750-746)=76×7+58=274-(137-129)=76×3-128=126+364-464=947-(500+290)=608-15×2=287×8-635=742-521+734=852+491=16×(255-252)=478-14×2=351+765-819=433-52×3=261-173+373=332-88×3=430+(225-204)=884-(241+455)=672-(121+324)=768-(887-867)=136+749+955=15×5+599=139×5-244=185+(248-198)=30×3=297-(146+46)=564-506+264=652-34-150=44+82=503-212+429=347×2-59=109×8=371-56×6=311×(906-897)=228+239=148+152+526=478-225=316×2-402=801-75+279=398-(148+234)=306-(171-84)=176+105=147-22=15×5=175+605=648+314+315=469+(460-403)=990-(273+655)=345+272=438-(52+79)=294-93+153=327+693-619=723-583=933+944+662=147×2=906-337×2=669-(110+171)=443-155×2=448-(129+313)=80+54=430-36×6=730×(190-182)=493-76-134=242×2+221=842+37×2=321+593=41×9=856-571=307×8-473=498-(12+153)=32×(394-386)=292+381=55+693+96=592+970+773=14×9=788-81+249=2/9+4/9=935×9=467+(204-117)=307+80-157=244-27×7=631+610-965=330×8-501=499+282+689=188-(278-250)=346-35=321-(292-286)=52+(352-78)=369+115×4=218+(324-269)=209×5=170+157=339-93+158=609+905=85+69=652+(749-543)=5/9-4/9=427+915-254=184+119=886-(328+266)=49+277=272-15+148=256+32+22=969-343×2=321×(84-81)=74×(489-482)=117×5+116=167×(391-387)=271×4-757=225×2+819=681-247+789=319-(317-105)=668-40×5=2/7+5/7=442-(589-575)=227+205-110=216×3-231=715×5-762=506-364+499=996+60×2=534+635-790=546×(668-660)=96+369+280=429-(941-713)=247+102-286=254+360+19=41×4=4/8-1/8=366-149×2=369-31=192+(640-125)=400+369-683=934-13-92=877-185+126=886-(44+599)=285×2=33+145=1/6+4/6=219×(141-138)=378-296-58=271×2=216-15×3=898×8=470-327-99=915-(550+42)=899-166×2=305-(906-720)=278+119=691×5=595×5=351+(325-70)=844+283=525-499=527-35×3=66-59+198=86×5=859-(419+234)=697-591+856=103×9-314=983-(15+197)=248×2+395=17+618+132=289+853+940=361-325+61=758-(264+265)=323×5-640=453×4-297=322×2-248=54+122+70=324-14×7=496-(342-173)=557-(336-53)=96+68×8=676+47-88=295-(439-363)=99+191-247=72-72+24=534×5=862-69-330=155×7-157=244×4+719=109×9-461=762-224=423-158-250=434+328+266=119+56=491-275=467-147-110=303-44=93×8+162=35×7+47=973+994+628=47+879-690=787-(53+308)=365-14-302=303+(893-633)=830-128-121=807×(504-497)=106×7=682+(687-268)=955-133=452-284-114=185×(187-180)=63×8+316=92+47×7=857-450+827=1/4+2/4=170+209-336=310-(288-114)=744×3=353-28-229=496-(122-117)=96+(893-252)=123+670-247=392-56-206=821-157+737=147×3-299=238+(326-180)=294+25-150=188+301-128=203×(334-331)=321-245-16=345-274+250=795+501-917=17+24+285=785+492-877=414-63×5=51×8=73+(225-149)=300-(83+109)=24+83=404-321+311=274+(437-20)=571-(593-22)=546-86×2=472+(759-32)=56+107=430-(271+147)=359×(351-344)=380+219×2=474-(206-95)=529+(891-799)=875-(460-109)=54+71×7=280+86-295=188+137=314+855+43=411-(27+195)=190×4+869=495-30×7=4/7-2/7=15×(287-278)=486-316+446=488-(491-191)=53+679+238=680×2-294=121+(195-42)=385×4-578=173+38+324=301×3+31=34×(691-684)=530+452-610=330+127=635-357+615=616+172=650-(385+192)=421-132=94+365×2=346-251-53=355-(139+31)=176+73=442-(263-246)=45×6-27=180-(12+139)=769-671=433-(381-335)=246-211=133-129+388=828×(715-708)=267×(561-555)=36×8=191+99+355=686+(309-299)=613-10×6=862×6=450+114×4=225×8=315-(390-301)=782-369=969-(142-97)=80×(491-485)=72+167=237-(259-231)=686+303-387=481-178=489+(95-13)=459-323-108=928-168+757=106-90+238=63×2+253=70×6-370=246-(94+92)=95×(420-416)=300+118×3=702+(717-591)=758-49×9=690+184×4=41×7=396-131×2=514-162×2=33+(858-60)=5/9+3/9=342-(237-115)=378-332+42=859-440+88=77×6-274=109+(508-451)=406-(82+203)=963-185-342=405-359=696+(241-186)=701-100×3=68×5+908=543+106=27×4+494=198+211-285=355+82=769-756=178+256=160-158+202=855-734+929=78+156×2=87-(383-374)=190+501-299=393-235+91=17+277-136=452+236+52=361-(171-66)=293-291+124=109×(166-158)=338-215+290=18+278-168=490-(194+208)=3/6-1/6=285×6=622-55-559=182-25×7=500-(49+183)=35×7=701+916+711=221-181+227=284×(273-268)=671-427=440-290+445=305+61-12=394-(143+65)=69×9=423-54×3=722-623+895=181+30×5=451-438+153=31+694-401=348+443=384-(88+173)=152+(368-344)=468-(45+306)=477-(349-92)=693+594-905=94+143×4=994-(27+488)=509+(588-257)=52+170=888×5=766+249=117×(397-391)=337-51-222=489+(177-90)=610-(395+91)=21×8-152=379+494+991=916-64-56=257+189-327=298+617+541=493-311=550+256=309-(276-244)=850+439+607=389-154=473+(247-94)=138+116=125-55=111+317=492-482=296+342+258=518×2-213=356-147-69=83×(73-70)=497+(409-212)=322×3-429=246×3-492=377-(301-234)=488-453=869×9=483-327-91=690+996-661=904-81×7=135×(147-143)=52+668+224=192×3=63×4+421=114×(279-272)=433-(49+190)=200×5-934=839+458+667=52+156×4=473-(372-353)=706×3=324-177-56=322+72-32=459+(363-87)=144+38=199-92=881-224×2=77+35=721+312=479-273=905-(161+511)=18×3=257+129×2=760×(524-516)=391+384-33=104+367-12=267-41=294-(884-825)=855×9-756=364-308-24=42+(409-241)=329+(739-428)=70+(831-802)=26+252+119=261+168=125×(400-393)=845×4-610=477-241-193=187-76=520×5=300×8=16×2+204=178+295-363=163+281+526=981-518=565+661+285=962-440-297=968-(373+35)=530-(934-586)=249×4=196×8-183=916-(582-444)=680-269-362=357×(519-511)=473-(301-266)=43×(425-422)=892-115-507=194+347+151=459-39×9=132-(394-313)=632×9-264=434-424+241=305-(78+203)=89+62-45=200×2-313=47×(116-110)=607+80×8=2/4-1/4=652-42=207+144-304=660-42+282=757+52+234=335-(208+123)=716-355-164=988×(38-35)=141-30×2=856-(843-710)=343×(183-178)=719-50=41×(347-340)=426-142×2=36×9=844×9=218×3-544=193+(364-79)=969×8=43×(88-85)=209×4=151+(251-35)=430+61+143=305×7-90=22+279+185=421+258-54=172×5=858×8=5/8-1/8=241×2-260=475-181-18=320-45-222=181+237-366=596-(282+157)=243-133+681=653×7=418×6-315=498+405+161=841-(379+434)=212+330+89=526×(548-543)=170+(122-78)=208+393+155=484-(400-385)=410-27×5=378-79-227=103×5-236=408+90=968-(263+242)=356-100×2=29×7+773=487-37=765×(922-914)=650×(549-546)=557×(842-839)=475-406-22=305+22×5=548×9-739=78×(27-20)=54×7-358=84+409-248=991-164-463=903-142+512=493-(126+126)=290-199-39=315-80-83=95+494=847-(439+117)=336+(393-284)=104×3+356=350×2=478-(123-19)=260-29×4=91×(471-464)=387+266-652=317-40-56=130×7-130=123+166-163=115+22×6=331×(320-317)=308+82-162=179+35+96=232-137=2/6+3/6=909-447+105=97+182-165=3/8+4/8=859+676-434=847-786=2/8+3/8=270-243+347=211-126=522+253×3=367-131=11×7+115=3/5-1/5=959-234×2=5/7+2/7=228×3-160=441-12-251=708-(398-104)=372-(419-163)=897-65×9=363+67=4/8-3/8=382-346-13=857-230-450=613+125=680-397=89+(766-177)=97+111+65=148×(95-92)=261+786-953=369+265+69=885-123×7=351+101×3=580-188×2=920-15-476=130-42=200×2-115=327-(67-53)=222×4-651=166-74×2=231-113×2=13×(103-100)=207+234=457-422=750-(422-389)=963-241-319=286-(171-138)=241+(314-10)=25+441-251=840-378×2=133+305-81=182-(147-106)=989×(313-305)=447-123×2=166+32=104+514=737×7=429-219+60=298+77=423-200-211=148+48×6=788-(342+192)=807-310=2/7-1/7=457×9-789=328-259=722+405-875=475-141-242=283-(438-184)=688-76+390=385+130-297=696×5=862-(511+345)=362-(255+105)=383-(138+231)=827-756=992×(444-440)=375-(44+21)=171-42×3=568×(505-499)=500-369=180×3=825-(44+52)=96×6-94=95-(133-56)=351×(744-741)=996-36+863=471+995=234+105-285=621+664=199+221=617-505=219-100+356=292-63+236=130+85-149=402-133×3=23×6-80=181×5-320=792-(967-680)=796+(895-476)=321+91-126=56×6=38×6=496-297-135=914×5=141+544+95=182×2=849+876+739=46+180=66+301+549=986×(46-43)=55+(835-361)=412-29×4=28×3=207×4-59=12×6=385-(60+221)=65×(384-377)=518+458+846=154×4+274=215+533+67=380-(305-199)=372+763+230=898-384-267=184-113+105=319-200=932+622=171-(45+88)=353-(167+10)=737-70×5=927-431=306+84+314=437+(223-26)=711-(668-558)=395+521+70=119×4=119×8-212=495-383+275=680-(569+49)=476-(144+192)=910-429-38=698×(847-839)=993-(735-552)=902-179+991=507×7-497=148×(340-334)=747×2-407=394-(187+41)=320-(440-416)=175×3=290+(200-148)=520-30+366=361+(487-51)=251+(908-504)=209+487+290=198+395×2=379+104=105×8-44=460×6-128=495-88×2=134-24-101=382-35×6=302+302+707=240×2+358=284-152+211=233+219=470×3-646=175×(137-134)=498+(239-212)=427-15=2/7+3/7=921-188-472=164-126=285-(296-267)=479×4-904=250×(72-69)=399-33×2=參考答案798+(830-144)=1484152-(102+36)=14488×2=976313+(488-224)=577374-64×4=118900-196×4=116134×4+361=897228+43=271731-463-206=62739+395+386=152063×6=378131+755+63=949952-(768-270)=454680-(106+345)=229623-364+60=319221+197+345=76328×2+445=501377+185+152=71451-20=31846-261-248=337147×6-182=700411+(417-330)=498239×2+444=922247-39×3=130865+292×2=1449785+132=917561+19+315=89531+185×5=956375-117=25819×(365-362)=57584×6=3504338-(285+48)=5374×6=2244290-140=150904-52-559=293195+429=624607-390-114=103442-268-56=118606+(602-467)=741886×6=5316393-376+951=968134+271-188=217928-103×2=722289-151+304=44227+150×6=927481-227=25457-12×3=21723-575-120=28430+133+33=596107-47=60657-(454-373)=576145-(97-87)=13557×9+834=1347840×7=5880330+(111-110)=331918-365=553990-459=531452-(239-63)=276191+75×5=566404-30×4=284176+(816-255)=737491+(361-55)=797137×4+546=1094400-139-250=11361-329=3293-23=70146×(593-589)=584650-498-73=79898+453-99=1252839-443=396657×7-539=4060363+(244-16)=591281-107+320=494222×2+164=608840+(593-74)=1359500×7=3500584×7-767=3321541+40+335=91616×(447-440)=11273+123=196702-222-185=29531+460-304=187182-(34+147)=1466-303+144=307362-62×2=238884×(213-209)=3536299×(906-902)=1196120-116+262=266300-(37+124)=1392/3-1/3=1/3375+33×7=606499-107=39267×(405-398)=469113+31×3=206670×6-549=3471119+165=2844/6+2/6=1520-(412-72)=180389-52-109=228890+984-671=1203214-151+856=919406-99-77=23062×6+356=7283/8+2/8=5/8142-128=14487-187×2=113842+(761-515)=1088526+245+102=873240×4-108=852275-(297-256)=2345/7-1/7=4/7103+(299-11)=391923-(408+215)=300224+581-630=175558+839-317=108084+90×3=354302-64+246=484852-167×2=518429-25×3=354306-(622-571)=25551+(122-62)=111150+236-249=13757+(461-456)=62260-(943-889)=206295+79=374610+223+549=1382987-26×3=90924+28=52213×2+495=9213/7-2/7=1/7830+(528-163)=1195945×(750-746)=378076×7+58=590274-(137-129)=26676×3-128=100126+364-464=26947-(500+290)=157608-15×2=578287×8-635=1661742-521+734=955852+491=134316×(255-252)=48478-14×2=450351+765-819=297433-52×3=277261-173+373=461332-88×3=68430+(225-204)=451884-(241+455)=188672-(121+324)=227768-(887-867)=748136+749+955=184015×5+599=674139×5-244=451185+(248-198)=23530×3=90297-(146+46)=105564-506+264=322652-34-150=46844+82=126503-212+429=720347×2-59=635109×8=872371-56×6=35311×(906-897)=2799228+239=467148+152+526=826478-225=253316×2-402=230801-75+279=1005398-(148+234)=16306-(171-84)=219176+105=281147-22=12515×5=75175+605=780648+314+315=1277469+(460-403)=526990-(273+655)=62345+272=617438-(52+79)=307294-93+153=354327+693-619=401723-583=140933+944+662=2539147×2=294906-337×2=232669-(110+171)=388443-155×2=133448-(129+313)=680+54=134430-36×6=214730×(190-182)=5840493-76-134=283242×2+221=705842+37×2=916321+593=91441×9=369856-571=285307×8-473=1983498-(12+153)=33332×(394-386)=256292+381=67355+693+96=844592+970+773=233514×9=126788-81+249=9562/9+4/9=6/9935×9=8415467+(204-117)=554307+80-157=230244-27×7=55631+610-965=276330×8-501=2139499+282+689=1470188-(278-250)=160346-35=311321-(292-286)=31552+(352-78)=326369+115×4=829218+(324-269)=273209×5=1045170+157=327339-93+158=404609+905=151485+69=154652+(749-543)=8585/9-4/9=1/9427+915-254=1088184+119=303886-(328+266)=29249+277=326272-15+148=405256+32+22=310969-343×2=283321×(84-81)=96374×(489-482)=518117×5+116=701167×(391-387)=668271×4-757=327225×2+819=1269681-247+789=1223319-(317-105)=107668-40×5=4682/7+5/7=1442-(589-575)=428227+205-110=322216×3-231=417715×5-762=2813506-364+499=641996+60×2=1116534+635-790=379546×(668-660)=436896+369+280=745429-(941-713)=201247+102-286=63254+360+19=63341×4=1644/8-1/8=3/8366-149×2=68369-31=338192+(640-125)=707400+369-683=86934-13-92=829877-185+126=818886-(44+599)=243285×2=57033+145=1781/6+4/6=5/6219×(141-138)=657378-296-58=24271×2=542216-15×3=171898×8=7184470-327-99=44915-(550+42)=323899-166×2=567305-(906-720)=119278+119=397691×5=3455595×5=2975351+(325-70)=606844+283=1127525-499=26527-35×3=42266-59+198=20586×5=430859-(419+234)=206697-591+856=962103×9-314=613983-(15+197)=771248×2+395=89117+618+132=767289+853+940=2082361-325+61=97758-(264+265)=229323×5-640=975453×4-297=1515322×2-248=39654+122+70=246324-14×7=226496-(342-173)=327557-(336-53)=27496+68×8=640676+47-88=635295-(439-363)=21999+191-247=4372-72+24=24534×5=2670862-69-330=463155×7-157=928244×4+719=1695109×9-461=520762-224=538423-158-250=15434+328+266=1028119+56=175491-275=216467-147-110=210303-44=25993×8+162=90635×7+47=292973+994+628=259547+879-690=236787-(53+308)=426365-14-302=49303+(893-633)=563830-128-121=581807×(504-497)=5649106×7=742682+(687-268)=1101955-133=822452-284-114=54185×(187-180)=129563×8+316=82092+47×7=421857-450+827=12341/4+2/4=3/4170+209-336=43310-(288-114)=136744×3=2232353-28-229=96496-(122-117)=49196+(893-252)=737123+670-247=546392-56-206=130821-157+737=1401147×3-299=142238+(326-180)=384294+25-150=169188+301-128=361203×(334-331)=609321-245-16=60345-274+250=321795+501-917=37917+24+285=326785+492-877=400414-63×5=9951×8=40873+(225-149)=149300-(83+109)=10824+83=107404-321+311=394274+(437-20)=691571-(593-22)=0546-86×2=374472+(759-32)=119956+107=163430-(271+147)=12359×(351-344)=2513380+219×2=818474-(206-95)=363529+(891-799)=621875-(460-109)=52454+71×7=551280+86-295=71188+137=325314+855+43=1212411-(27+195)=189190×4+869=1629495-30×7=2854/7-2/7=2/715×(287-278)=135486-316+446=616488-(491-191)=18853+679+238=970680×2-294=1066121+(195-42)=274385×4-578=962173+38+324=535301×3+31=93434×(691-684)=238530+452-610=372330+127=457635-357+615=893616+172=788650-(385+192)=73421-132=28994+365×2=824346-251-53=42355-(139+31)=185176+73=249442-(263-246)=42545×6-27=243180-(12+139)=29769-671=98433-(381-335)=387246-211=35133-129+388=392828×(715-708)=5796267×(561-555)=160236×8=288191+99+355=645686+(309-299)=696613-10×6=553862×6=5172450+114×4=906225×8=1800315-(390-301)=226782-369=413969-(142-97)=92480×(491-485)=48072+167=239237-(259-231)=209686+303-387=602481-178=303489+(95-13)=571459-323-108=28928-168+757=1517106-90+238=25463×2+253=37970×6-370=50246-(94+92)=6095×(420-416)=380300+118×3=654702+(717-591)=828758-49×9=317690+184×4=142641×7=287396-131×2=134514-162×2=19033+(858-60)=8315/9+3/9=8/9342-(237-115)=220378-332+42=88859-440+88=50777×6-274=188109+(508-451)=166406-(82+203)=121963-185-342=436405-359=46696+(241-186)=751701-100×3=40168×5+908=1248543+106=64927×4+494=602198+211-285=124355+82=437769-756=13178+256=434160-158+202=204855-734+929=105078+156×2=39087-(383-374)=78190+501-299=392393-235+91=24917+277-136=158452+236+52=740361-(171-66)=256293-291+124=126109×(166-158)=872338-215+290=41318+278-168=128490-(194+208)=883/6-1/6=2/6285×6=1710622-55-559=8182-25×7=7500-(49+183)=26835×7=245701+916+711=2328221-181+227=267284×(273-268)=1420671-427=244440-290+445=595305+61-12=354394-(143+65)=18669×9=621423-54×3=261722-623+895=994181+30×5=331451-438+153=16631+694-401=324348+443=791384-(88+173)=123152+(368-344)=176468-(45+306)=117477-(349-92)=220693+594-905=38294+143×4=666994-(27+488)=479509+(588-257)=84052+170=222888×5=4440766+249=1015117×(397-391)=702337-51-222=64489+(177-90)=576610-(395+91)=12421×8-152=16379+494+991=1864916-64-56=796257+189-327=119298+617+541=1456493-311=182550+256=806309-(276-244)=277850+439+607=1896389-154=235473+(247-94)=626138+116=254125-55=70111+317=428492-482=10296+342+258=896518×2-213=823356-147-69=14083×(73-70)=249497+(409-212)=694322×3-429=537246×3-492=246377-(301-234)=310488-453=35869×9=7821483-327-91=65690+996-661=1025904-81×7=337135×(147-143)=54052+668+224=944192×3=57663×4+421=673114×(279-272)=798433-(49+190)=194200×5-934=66839+458+667=196452+156×4=676473-(372-353)=454706×3=2118324-177-56=91322+72-32=362459+(363-87)=735144+38=182199-92=107881-224×2=43377+35=112721+312=1033479-273=206905-(161+511)=23318×3=54257+129×2=515760×(524-516)=6080391+384-33=742104+367-12=459267-41=226294-(884-825)=235855×9-756=6939364-308-24=3242+(409-241)=210329+(739-428)=64070+(831-802)=9926+252+119=397261+168=429125×(400-393)=875845×4-610=2770477-241-193=43187-76=111520×5=2600300×8=240016×2+204=236178+295-363=110163+281+526=970981-518=463565+661+285=1511962-440-297=225968-(373+35)=560530-(934-586)=182249×4=996196×8-183=1385916-(582-444)=778680-269-362=49357×(519-511)=2856473-(301-266)=43843×(425-422)=129892-115-507=270194+347+151=692459-39×9=108132-(394-313)=51632×9-264=5424434-424+241=251305-(78+203)=2489+62-45=106200×2-313=8747×(116-110)=282607+80×8=12472/4-1/4=1/4652-42=610207+144-304=47660-42+282=900757+52+234=1043335-(208+123)=4716-355-164=197988×(38-35)=2964141-30×2=81856-(843-710)=723343×(183-178)=1715719-50=66941×(347-340)=287426-142×2=14236×9=324844×9=7596218×3-544=110193+(364-79)=478969×8=775243×(88-85)=129209×4=836151+(251-35)=367430+61+143=634305×7-90=204522+279+185=486421+258-54=625172×5=860858×8=68645/8-1/8=4/8241×2-260=222475-181-18=276320-45-222=53181+237-366=52596-(282+157)=157243-133+681=791653×7=4571418×6-315=2193498+405+161=1064841-(379+434)=28212+330+89=631526×(548-543)=2630170+(122-78)=214208+393+155=756484-(400-385)=469410-27×5=275378-79-227=72103×5-236=279408+90=498968-(263+242)=463356-100×2=15629×7+773=976487-37=450765×(922-914)=6120650×(549-546)=1950557×(842-839)=1671475-406-22=47305+22×5=415548×9-739=419378×(27-20)=54654×7-358=2084+409-248=245991-164-463=364903-142+512=1273493-(126+126)=241290-199-39=52315-80-83=15295+494=589847-(439+117)=291336+(393-284)=445104×3+356=668350×2=700478-(123-19)=374260-29×4=14491×(471-464)=637387+266-652=1317-40-56=221130×7-130=780123+166-163=126115+22×6=247331×(320-317)=993308+82-162=228179+35+96=310232-137=952/6+3/6=5/6909-447+105=56797+182-165=1143/8+4/8=7/8859+676-434=1101847-786=612/8+3/8=5/8270-243+347=374211-126=85522+253×3=1281367-131=23611×7+115=1923/5-1/5=2/5959-234×2=4915/7+2/7=1228×3-160=524441-12-251=178708-(398-104)=414372-(419-163)=116897-65×9=312363+67=4304/8-3/8=1/8382-346-13=