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518×4-720=706-(531+26)=864+411+917=415-(339-72)=847-82×8=585-11=821-171=378+110=101-(309-234)=654×2-565=487-(90+249)=269+202=458-76+571=103+47×5=286-276=34+57×2=959-(434+102)=422-(327-196)=21×4=265+844-867=658-(159+400)=735-(903-760)=645-559+607=683×3=791+(593-457)=495-(500-179)=139×(378-373)=347-314=121-(197-97)=392-284+249=105+135=661+948+194=5/9-2/9=68×4-253=493+50×2=266×4=10×6=711-184=114+329=147-50+69=35×7=818+142+30=496-86+17=139×6-676=278×9-367=37+142-117=151+133-205=42+88=491-(160+303)=104×(323-314)=419-132-152=725-126×5=927×5=148+460=203×(153-149)=921-580=842+235-68=655-(865-452)=187+(891-634)=887-299-234=63+586+344=645-103-319=403-48×4=504-(208-63)=470×6=238-204+116=952-466×2=363-227+351=463-126×3=437-367+168=933-(652-337)=96×5-339=316-78=412-190-45=438-92×2=11+795-725=16+(580-499)=461-(366-358)=265+(964-600)=407-325+278=589-(521+32)=298×2=416+833+52=329-(379-361)=369-336+163=362+(324-16)=799-380-360=299+(478-42)=689-(172+279)=878-43=294×(384-381)=417-(328+79)=22×(280-273)=684+748+984=793-478+286=37×7=532-(355+173)=109×(153-149)=212×(942-938)=877-(748-414)=68+207=585+129=133×(380-375)=415-220-134=349×2-109=408+(269-253)=222-95×2=719×(71-62)=704-213=225-(269-229)=568-38×2=490-376=441-(105+45)=345-(59+231)=207+(231-76)=3/4-1/4=373-24-219=831+925=367-237=74+271=358-170×2=61-(70-68)=391×8=259+222×2=798-520+104=170×(304-299)=405-20×5=92+389=445×(936-930)=968+197+695=492×9=687-126+427=578+408-843=808×(320-315)=159+117+676=182×3+291=809+483-679=98-16×4=196×3+246=939+174+468=446-(94+214)=238+(474-40)=757-677-25=981-480-95=229-14×2=70+276×2=227-65×3=454-(310-226)=144×5=117×7+808=847+(687-658)=379×(609-601)=193+489+62=398-104+454=636-(107+415)=101×3+60=223-(19+133)=209+201+814=211+(632-96)=131×6=82+142×5=450-81×4=287+106=436-135=89×5+275=40+438+105=305-(256-79)=990-87×8=470+206+302=742-(521-452)=393×(743-736)=440-46×9=145+623+154=981-(45+771)=924-113×7=485×2-605=608-90=809+(642-14)=213-103=380-119×2=284-50×2=146×(658-651)=163+105×6=370×6=224×4-262=206+883+471=479+(315-268)=586+764+353=775+(570-11)=130+288×2=455+338=3/5+2/5=652-(670-457)=132+249=168×2+500=237×4-570=989-(207+627)=3/8+4/8=925-738=229+655-355=51×3=159-126=225+150-197=227+545-523=568+(164-132)=422-325=150+360+139=224-147+184=386-329+164=161×2+292=135+500+273=286-(478-244)=348+(454-179)=923-49×4=122-92+246=60+900+659=317-90×3=488-(47+411)=166+976=435+634=231+120=152×4=181-72+46=527-(766-301)=141+475=357-68×4=197×(249-246)=438×7-105=6/8-2/8=351+136=358-40×3=802×6-417=155+341=168-(108+25)=45×2=221×2-387=452-91-11=38×2+988=261×5=819×(479-476)=85×6+952=220+39×5=654×5=950-780=334+413×2=469-270=253+133-200=353+55×3=370-(194+71)=5/8+3/8=2/8+3/8=746×2-41=453-356-56=790+446-420=379+68=122+234=62×8-473=442+851-715=159×6+657=865-742+953=960+(824-821)=915-20×9=139+324=186-(523-471)=211-63+48=141×2=967+34×3=172+188=640×6-282=53×4-163=24+44-34=32+652+67=312+40-80=976-735+875=945+769+325=605+144+155=844-347+407=169-(99+30)=203+567+115=877-(12+417)=502-234=620+(833-296)=765-(869-155)=332+16-275=324-(150+61)=370-142-153=695-19×7=376+(230-163)=444+(711-576)=840×9=480-25×5=764×(979-976)=113+(278-211)=433+(112-71)=1/8+5/8=342-17-249=973-595+409=347-(11+306)=131+61+248=446-51×7=872+16+913=211+(492-477)=118×2-79=962-(640+22)=302+60×9=486-114=163+47=41+(425-173)=660+(974-912)=194×4-162=697+995+265=668+313-737=74+336+21=130×4-487=204+(373-262)=248-39×3=860-488-82=432+172=106-(382-279)=418+(248-134)=603-279×2=663+252+54=362-(100+61)=227×3=175×5=280×6-471=928-16-32=17×2+191=28+467×2=114×7-191=935+(923-632)=97+278-111=776×4-298=445+36-412=267+99×5=397+152+327=365×8=620-(842-342)=208+189-118=163+79-18=388-33×4=546+514=496-378+212=123+(257-69)=839-91×6=60+827+295=802×9-616=143×4=283+537-583=214×(277-268)=112×(537-534)=128×(465-459)=44×8=932-270-648=475-240-51=644-59×9=436-(34+294)=390-(136+207)=50×3=762+113+45=436+178=547-247=641×8=298+981+179=451-105=305+266+104=418+67×5=469-(149+65)=395+104-321=111+349-133=203-13=40×(152-148)=740-(733-352)=3/7-2/7=196+855-168=414×(585-581)=271×3=183+45×8=257×8-767=882+144-773=885+56+564=367-(408-73)=29+(384-209)=178+61+46=534-135=412-104-174=137+290-299=391-(168+44)=829+544-333=271+93=320-242+36=181-(479-440)=189-(49-25)=868-300-566=534×5-929=319-(66+247)=227-81=55×(401-395)=169+(207-41)=589×(890-885)=369-48=199×3-227=310+(171-140)=2/10+6/10=366×2+929=767-638+913=383+161+460=436-136=534×7-416=344-73×2=375-(260-218)=803-451=55×7+288=459-246=280+455=106×5=74×5+309=464-206-147=143×6-74=296-(236-164)=485+278=361-230+277=298+24+66=252-(356-188)=716+101-644=380-344+968=967-395×2=705-367=146+186+870=277-21×3=198+(576-503)=98×(134-129)=431-122=317+266=27×9+51=283-86×3=23+154×2=763-493+568=936-(94-58)=1/5+2/5=398-84+29=819-(614-478)=382+(164-26)=368×2-635=709-(225+208)=453-385+157=328-148+313=43×(453-448)=265-59+70=704-56=757+936+127=565+129×3=513×(242-237)=865-(768-520)=503-75-279=671+882=408+241+325=947-29×9=954-(892-622)=871×4=122-(509-483)=907×4-935=516+216-150=850+143-185=448-318-128=914-(224+651)=18×(251-245)=970-(575-36)=889-193-69=73×3=114+(435-150)=424+872+573=803+(784-198)=755+781-737=249+828+177=161+177+569=389+230=4/7-2/7=383-68-50=526-(538-111)=46×6+391=306-38×4=887-639+936=316×6-387=448-154-236=22-(399-394)=29×(133-125)=814×(510-507)=132×(348-343)=713+389×2=185×3-408=862×(346-338)=457-133+43=594-(915-636)=130+268-307=4/8-3/8=547×(459-455)=740+641=472+(778-410)=216+164+549=943-(566-340)=71×7=465-(68+276)=349-306=352-295+294=586-402-23=412-93-162=133×5-398=322-59-12=312-238=246-(343-268)=734-131-173=352-108-155=890×7-999=353×5-299=126-20=422-360+69=106+104-178=437×2=452×8=229+487+145=250-46×5=777×8-939=93×5+524=51×5-157=119+359-95=80-73+156=458×2+45=720+519+485=951+394=49×(63-54)=908-(450+351)=130×8=535+122+202=365-(362-47)=463+(354-86)=845-749=163×5-341=456-289-145=952-34+925=418+(404-230)=387×2=427+(336-254)=316-184=162×4=657×8=39×(375-366)=92+235=343+(377-325)=95+(283-230)=701×(945-942)=51×3-132=602-(344+54)=44×9-59=320+115-69=180×4=193+234-300=346-253+86=560-445+634=418-112-35=134+347=714-42-367=757×4-993=100×2=800-76×9=424-153-39=267×3=97+317=615-231=304-136+297=11×(425-416)=930-42×4=926-636+898=405-22-248=747×(137-129)=559-35×4=197×5-700=576-231-96=829-135=499-94-106=40+929+430=669-(154+465)=37×5+996=57×7=597-(40+387)=172×(199-195)=47+260=2/9+6/9=76+180=69+272×2=142+104-16=71+84×7=813-11×6=514-293-49=976+319+407=498-(279-159)=134×6-599=460-82-209=811+153+16=142+123=199+151=136+164×3=234-10-149=413-(159+150)=679+(723-276)=171+141=426+(462-35)=398×2=868-130+173=44×7+406=952-(485+382)=378-(320-279)=194×(137-134)=2/9+7/9=665-479+305=142+149=454-54-125=425-371+431=463+(946-671)=10×2+198=382+469+25=794-(287+121)=122×7+391=257-(324-87)=144×4=650×2=618×(890-887)=231×4-322=467+207+308=851-182-588=766+129×2=574×4=445-22-338=370×8-554=955+576-560=550×5-713=834-48-418=831+(681-117)=853-376=477-31-80=789-89+629=432+90-84=268+21×7=746+160+61=395+646-350=205-25×8=418-86=40+603+340=282-(377-99)=234-(184-145)=310×9-119=406-262=378-309=98×3=116+189=75×7+876=492-85×4=133-41+97=231×3+339=105×(80-74)=366+102-233=22×(329-320)=1/7+2/7=244×(384-381)=1/8+6/8=304+136-232=636-(275+29)=325-294=292×3-459=454-(327+85)=302×9=631+87+10=769-(906-715)=944-(217+283)=687×8=879-520+728=663-223=685+815-106=416-347=598+(838-314)=801×2-586=363-36×6=576+106+108=75×5+18=590-440=935-(349+460)=744+772+195=241+656-399=139-(274-149)=611-186×3=281+259=256×3+210=328×2-617=874-194-223=22×5=411+689-349=803-113×2=452-268-168=314×2=934-84-464=34+(397-293)=27+(386-267)=961×6=432-211-25=481-108×2=301×3-232=111×9-122=972×(137-132)=7/10-3/10=834-174-316=494+13×2=80-68+439=749×2=135+148+408=51×(464-457)=492+(209-150)=187+(869-592)=5/8-2/8=914-(747-30)=183+206-33=264-(95+46)=417+398+351=281+(384-144)=264-29×4=481-251+10=553-(169+108)=620+769+14=807-210=822-378×2=4/7+2/7=349+116×2=686+59-457=316+(752-414)=2/3-1/3=54×(431-426)=248+55-260=145×(246-240)=948-(690+59)=967-25-796=65×4-23=133+372-495=767-109×6=856-(605+34)=764-580+434=484-(485-259)=39×7+317=223+184=528-(565-59)=446-(187+50)=423-109=131+25-80=447-341=75+305=626+345-252=358-(199+10)=915-905=660+454=897+(440-185)=378-106=614-60×3=629+195=51+(237-173)=193×(429-420)=371-(21+283)=426-337-77=165+312=930-184×2=483-(172+33)=888-(906-429)=141-115=286-(165-66)=482-118-337=772+(448-121)=55×3+125=442-48×2=912-(827-409)=217+725=213×4=997-(141+472)=103×2-66=239+(476-157)=85+319=572-(328+172)=792-334+979=182+27-186=459-(507-82)=779×(762-756)=897×5-186=18+(482-347)=385-(822-676)=32+425-414=808-366-161=970-54-722=692-(85+132)=2/4-1/4=52×(271-264)=900-636+877=135×5+97=20×8+41=304-37×2=287×4=581+(367-230)=766-10-256=399+65×9=719+213-693=456+324=179×2=247-31=4/7-1/7=843-405+740=492-154×3=469-(124+59)=748×6-244=495-(35+156)=270+214=492-146-232=273+24-82=186×5-527=237+256=78+381×2=428-211+88=3/5-1/5=604-336=879×4=395×(148-140)=379-260=48+258-259=448×2=873-18=448-28-377=716+693-86=278×(405-402)=407-(170+127)=810-742+591=36+143×3=20×(323-314)=492-390+272=157-(489-436)=345-328-11=368×5-180=926-81×7=44+139-61=27+133=350-128=200+(600-28)=522+462=55+479-319=232×(320-316)=861-246-514=205×(303-299)=417×4-231=486-395+157=677-297+32=135×(414-410)=317-292=191×6=379-(545-436)=292-(22+227)=298-55×2=734×(89-84)=366-(44+73)=214-14×4=355×(671-663)=704+641=参考答案518×4-720=1352706-(531+26)=149864+411+917=2192415-(339-72)=148847-82×8=191585-11=574821-171=650378+110=488101-(309-234)=26654×2-565=743487-(90+249)=148269+202=471458-76+571=953103+47×5=338286-276=1034+57×2=148959-(434+102)=423422-(327-196)=29121×4=84265+844-867=242658-(159+400)=99735-(903-760)=592645-559+607=693683×3=2049791+(593-457)=927495-(500-179)=174139×(378-373)=695347-314=33121-(197-97)=21392-284+249=357105+135=240661+948+194=18035/9-2/9=3/968×4-253=19493+50×2=593266×4=106410×6=60711-184=527114+329=443147-50+69=16635×7=245818+142+30=990496-86+17=427139×6-676=158278×9-367=213537+142-117=62151+133-205=7942+88=130491-(160+303)=28104×(323-314)=936419-132-152=135725-126×5=95927×5=4635148+460=608203×(153-149)=812921-580=341842+235-68=1009655-(865-452)=242187+(891-634)=444887-299-234=35463+586+344=993645-103-319=223403-48×4=211504-(208-63)=359470×6=2820238-204+116=150952-466×2=20363-227+351=487463-126×3=85437-367+168=238933-(652-337)=61896×5-339=141316-78=238412-190-45=177438-92×2=25411+795-725=8116+(580-499)=97461-(366-358)=453265+(964-600)=629407-325+278=360589-(521+32)=36298×2=596416+833+52=1301329-(379-361)=311369-336+163=196362+(324-16)=670799-380-360=59299+(478-42)=735689-(172+279)=238878-43=835294×(384-381)=882417-(328+79)=1022×(280-273)=154684+748+984=2416793-478+286=60137×7=259532-(355+173)=4109×(153-149)=436212×(942-938)=848877-(748-414)=54368+207=275585+129=714133×(380-375)=665415-220-134=61349×2-109=589408+(269-253)=424222-95×2=32719×(71-62)=6471704-213=491225-(269-229)=185568-38×2=492490-376=114441-(105+45)=291345-(59+231)=55207+(231-76)=3623/4-1/4=2/4373-24-219=130831+925=1756367-237=13074+271=345358-170×2=1861-(70-68)=59391×8=3128259+222×2=703798-520+104=382170×(304-299)=850405-20×5=30592+389=481445×(936-930)=2670968+197+695=1860492×9=4428687-126+427=988578+408-843=143808×(320-315)=4040159+117+676=952182×3+291=837809+483-679=61398-16×4=34196×3+246=834939+174+468=1581446-(94+214)=138238+(474-40)=672757-677-25=55981-480-95=406229-14×2=20170+276×2=622227-65×3=32454-(310-226)=370144×5=720117×7+808=1627847+(687-658)=876379×(609-601)=3032193+489+62=744398-104+454=748636-(107+415)=114101×3+60=363223-(19+133)=71209+201+814=1224211+(632-96)=747131×6=78682+142×5=792450-81×4=126287+106=393436-135=30189×5+275=72040+438+105=583305-(256-79)=128990-87×8=294470+206+302=978742-(521-452)=673393×(743-736)=2751440-46×9=26145+623+154=922981-(45+771)=165924-113×7=133485×2-605=365608-90=518809+(642-14)=1437213-103=110380-119×2=142284-50×2=184146×(658-651)=1022163+105×6=793370×6=2220224×4-262=634206+883+471=1560479+(315-268)=526586+764+353=1703775+(570-11)=1334130+288×2=706455+338=7933/5+2/5=1652-(670-457)=439132+249=381168×2+500=836237×4-570=378989-(207+627)=1553/8+4/8=7/8925-738=187229+655-355=52951×3=153159-126=33225+150-197=178227+545-523=249568+(164-132)=600422-325=97150+360+139=649224-147+184=261386-329+164=221161×2+292=614135+500+273=908286-(478-244)=52348+(454-179)=623923-49×4=727122-92+246=27660+900+659=1619317-90×3=47488-(47+411)=30166+976=1142435+634=1069231+120=351152×4=608181-72+46=155527-(766-301)=62141+475=616357-68×4=85197×(249-246)=591438×7-105=29616/8-2/8=4/8351+136=487358-40×3=238802×6-417=4395155+341=496168-(108+25)=3545×2=90221×2-387=55452-91-11=35038×2+988=1064261×5=1305819×(479-476)=245785×6+952=1462220+39×5=415654×5=3270950-780=170334+413×2=1160469-270=199253+133-200=186353+55×3=518370-(194+71)=1055/8+3/8=12/8+3/8=5/8746×2-41=1451453-356-56=41790+446-420=816379+68=447122+234=35662×8-473=23442+851-715=578159×6+657=1611865-742+953=1076960+(824-821)=963915-20×9=735139+324=463186-(523-471)=134211-63+48=196141×2=282967+34×3=1069172+188=360640×6-282=355853×4-163=4924+44-34=3432+652+67=751312+40-80=272976-735+875=1116945+769+325=2039605+144+155=904844-347+407=904169-(99+30)=40203+567+115=885877-(12+417)=448502-234=268620+(833-296)=1157765-(869-155)=51332+16-275=73324-(150+61)=113370-142-153=75695-19×7=562376+(230-163)=443444+(711-576)=579840×9=7560480-25×5=355764×(979-976)=2292113+(278-211)=180433+(112-71)=4741/8+5/8=6/8342-17-249=76973-595+409=787347-(11+306)=30131+61+248=440446-51×7=89872+16+913=1801211+(492-477)=226118×2-79=157962-(640+22)=300302+60×9=842486-114=372163+47=21041+(425-173)=293660+(974-912)=722194×4-162=614697+995+265=1957668+313-737=24474+336+21=431130×4-487=33204+(373-262)=315248-39×3=131860-488-82=290432+172=604106-(382-279)=3418+(248-134)=532603-279×2=45663+252+54=969362-(100+61)=201227×3=681175×5=875280×6-471=1209928-16-32=88017×2+191=22528+467×2=962114×7-191=607935+(923-632)=122697+278-111=264776×4-298=2806445+36-412=69267+99×5=762397+152+327=876365×8=2920620-(842-342)=120208+189-118=279163+79-18=224388-33×4=256546+514=1060496-378+212=330123+(257-69)=311839-91×6=29360+827+295=1182802×9-616=6602143×4=572283+537-583=237214×(277-268)=1926112×(537-534)=336128×(465-459)=76844×8=352932-270-648=14475-240-51=184644-59×9=113436-(34+294)=108390-(136+207)=4750×3=150762+113+45=920436+178=614547-247=300641×8=5128298+981+179=1458451-105=346305+266+104=675418+67×5=753469-(149+65)=255395+104-321=178111+349-133=327203-13=19040×(152-148)=160740-(733-352)=3593/7-2/7=1/7196+855-168=883414×(585-581)=1656271×3=813183+45×8=543257×8-767=1289882+144-773=253885+56+564=1505367-(408-73)=3229+(384-209)=204178+61+46=285534-135=399412-104-174=134137+290-299=128391-(168+44)=179829+544-333=1040271+93=364320-242+36=114181-(479-440)=142189-(49-25)=165868-300-566=2534×5-929=1741319-(66+247)=6227-81=14655×(401-395)=330169+(207-41)=335589×(890-885)=2945369-48=321199×3-227=370310+(171-140)=3412/10+6/10=8/10366×2+929=1661767-638+913=1042383+161+460=1004436-136=300534×7-416=3322344-73×2=198375-(260-218)=333803-451=35255×7+288=673459-246=213280+455=735106×5=53074×5+309=679464-206-147=111143×6-74=784296-(236-164)=224485+278=763361-230+277=408298+24+66=388252-(356-188)=84716+101-644=173380-344+968=1004967-395×2=177705-367=338146+186+870=1202277-21×3=214198+(576-503)=27198×(134-129)=490431-122=309317+266=58327×9+51=294283-86×3=2523+154×2=331763-493+568=838936-(94-58)=9001/5+2/5=3/5398-84+29=343819-(614-478)=683382+(164-26)=520368×2-635=101709-(225+208)=276453-385+157=225328-148+313=49343×(453-448)=215265-59+70=276704-56=648757+936+127=1820565+129×3=952513×(242-237)=2565865-(768-520)=617503-75-279=149671+882=1553408+241+325=974947-29×9=686954-(892-622)=684871×4=3484122-(509-483)=96907×4-935=2693516+216-150=582850+143-185=808448-318-128=2914-(224+651)=3918×(251-245)=108970-(575-36)=431889-193-69=62773×3=219114+(435-150)=399424+872+573=1869803+(784-198)=1389755+781-737=799249+828+177=1254161+177+569=907389+230=6194/7-2/7=2/7383-68-50=265526-(538-111)=9946×6+391=667306-38×4=154887-639+936=1184316×6-387=1509448-154-236=5822-(399-394)=1729×(133-125)=232814×(510-507)=2442132×(348-343)=660713+389×2=1491185×3-408=147862×(346-338)=6896457-133+43=367594-(915-636)=315130+268-307=914/8-3/8=1/8547×(459-455)=2188740+641=1381472+(778-410)=840216+164+549=929943-(566-340)=71771×7=497465-(68+276)=121349-306=43352-295+294=351586-402-23=161412-93-162=157133×5-398=267322-59-12=251312-238=74246-(343-268)=171734-131-173=430352-108-155=89890×7-999=5231353×5-299=1466126-20=106422-360+69=131106+104-178=32437×2=874452×8=3616229+487+145=861250-46×5=20777×8-939=527793×5+524=98951×5-157=98119+359-95=38380-73+156=163458×2+45=961720+519+485=1724951+394=134549×(63-54)=441908-(450+351)=107130×8=1040535+122+202=859365-(362-47)=50463+(354-86)=731845-749=96163×5-341=474456-289-145=22952-34+925=1843418+(404-230)=592387×2=774427+(336-254)=509316-184=132162×4=648657×8=525639×(375-366)=35192+235=327343+(377-325)=39595+(283-230)=148701×(945-942)=210351×3-132=21602-(344+54)=20444×9-59=337320+115-69=366180×4=720193+234-300=127346-253+86=179560-445+634=749418-112-35=271134+347=481714-42-367=305757×4-993=2035100×2=200800-76×9=116424-153-39=232267×3=80197+317=414615-231=384304-136+297=46511×(425-416)=99930-42×4=762926-636+898=1188405-22-248=135747×(137-129)=5976559-35×4=419197×5-700=285576-231-96=249829-135=694499-94-106=29940+929+430=1399669-(154+465)=5037×5+996=118157×7=399597-(40+387)=170172×(199-195)=68847+260=3072/9+6/9=8/976+180=25669+272×2=613142+104-16=23071+84×7=659813-11×6=747514-293-49=172976+319+407=1702498-(279-159)=378134×6-599=205460-82-209=169811+153+16=980142+123=265199+151=350136+164×3=628234-10-149=75413-(159+150)=104679+(723-276)=1126171+141=312426+(462-35)=853398×2=796868-130+173=91144×7+406=714952-(485+382)=85378-(320-279)=337194×(137-134)=5822/9+7/9=1665-479+305=491142+149=291454-54-125=275425-371+431=485463+(946-671)=73810×2+198=218382+469+25=876794-(287+121)=386122×7+391=1245257-(324-87)=20144×4=576650×2=1300618×(890-887)=1854231×4-322=602467+207+308=982851-182-588=81766+129×2=1024574×4=2296445-22-338=85370×8-554=2406955+576-560=971550×5-713=2037834-48-418=368831+(681-117)=1395853-376=477477-31-80=366789-89+629=1329432+90-84=438268+21×7=415746+160+61=967395+646-350=691205-25×8=5418-86=33240+603+340=983282-(377-99)=4234-(184-145)=195310×9-119=2671406-262=144378-309=6998×3=294116+189=30575×7+876=1401492-85×4=152133-41+97=189231×3+339=1032105×(80-74)=630366+102-233=23522×(329-320)=1981/7+2/7=3/7244×(384-381)=7321/8+6/8=7/8304+136-232=208636-(275+29)=332325-294=31292×3-459=417454-(327+85)=42302×9=2718631+87+10=728769-(906-715)=578944-(217+283)=444687×8=5496879-520+728=1087663-223=440685+815-106=1394416-347=69598+(838-314)=1122801×2-586=1016363-36×6=147576+106+108=79075×5+18=393590-440=150935-(349+460)=126744+772+195=1711241+656-399=498139-(274-149)=14611-186×3=53281+259=540256×3+210=978328×2-617=39874-194-223=45722×5=110411+689-349=751803-113×2=577452-268-168=16314×2=628934-84-464=38634+(397-293)=13827+(386-267)=146961×6=5766432-211-25=196481-108×2=265301×3-232=671111×9-122=877972×(137-132)=48607/10-3/10=4/10834-174-316=344494+13×2=52080-68+4