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233+127×5=744-(619-542)=486-188+831=204×2-57=813-696-103=492+(426-51)=298+(209-57)=950×(662-657)=411-142+829=67+119+81=864-379-50=4/7-1/7=474-379-22=325-(338-227)=19×(162-158)=778×4=104×3+785=139+227=149-103=601-10-32=444-46×4=663×7-645=540×(936-928)=64×9-386=316+(942-913)=365+687+491=366-255=478×2=436+700=157+301-132=411+259+190=234+(147-123)=993-(536-376)=97+169+591=157-(384-286)=749-(204-95)=271+858+360=91×(442-433)=468-121-103=695-(258+340)=101×3=446-421+757=155-39×3=376×6-900=926+(924-151)=305-149+240=297-(64+50)=350×2-314=279+276-364=356-308+226=2/5-1/5=50+251=459-(88+347)=961-549-241=24×(23-17)=230-190+21=920-50×6=352-137=256×2+206=5/8+2/8=140-24×5=746+(951-653)=173×2+432=375-126=695-329+817=839+185=647-82-318=81×3+77=167+502+236=79-78+36=289×3-40=34×2+325=888-24×9=930-86×8=289+106=527-68-382=219+116=692-(94+503)=662×(669-664)=400-363+380=980+597+959=374+(332-33)=709-(708-269)=692-611+628=545-336=67×9=82+29=24-(101-95)=484-220+777=801+187×4=134+52=147+650-773=375-(57+94)=578×6=64+176=196+(298-220)=766×9=68×(436-430)=262+85=636+12×5=100×5=293-110-77=806-(819-429)=465+234=374+107=48+180=168+170=347-(77+97)=432-185=157-102-23=386-12×7=159+273-129=853-98×2=829-(59+236)=60+419-362=281+705-778=176+838-113=345+240=1/4+3/4=473-457+195=446+(180-22)=362-(174+27)=752+301×2=619+527+670=155+481=873+290+918=23×(420-411)=169+195-102=691+415-269=143+242+359=184+49×7=820-(644+132)=266×3+170=150+62×8=53+(732-486)=648×(53-44)=339+99-360=802-369+331=766+748-630=451-(394+20)=294-34+111=58+339+628=931-594-13=332-143=150+146-281=841×8-201=898-146-98=392-251-65=877-(194+364)=465-292=653+74+112=992+91-988=943-131×4=767×4-61=3/6-2/6=940-56-207=86+464=494-209+155=215+237-258=40×4=415-(286-274)=116×6=607×2-585=502+140-333=492+882+400=329×2-639=420-(44+12)=651-(151+203)=16×4+345=159×3-29=74×9=124×(202-199)=215×2-109=417×2-213=417+244=338×8-726=524+208+593=221+333+273=711+(458-247)=281-(94+153)=684-545-79=707+(797-18)=903-413+750=407-26×7=575-21+48=329+525=107×2+183=29-23+190=4/9-1/9=199+517=134+657+134=494×(220-214)=35+(550-65)=248×(247-244)=435-86+190=282-(434-391)=364-(125+20)=604-105-153=354-(363-147)=583×6-200=787-90×7=927+848-346=160+741=1/6+5/6=110×5-468=406+(482-70)=494-34×9=463-39×3=386-43×3=137+138=678+34+279=463-462+86=888+(851-206)=594+37+107=487+427+999=215-49-155=336-124=117-(430-360)=375+230×2=479+461-431=461-(180+255)=228×4-714=199×3+360=116×(386-380)=144+94×9=147+506+335=268-56×2=573+810-228=828+321-603=485+231=763-(736-146)=13+(382-371)=771-46-195=799-(224-73)=633+483-835=236-75×3=426+246=998+456-57=305+180+556=180-47+172=5/7-2/7=416-(101+263)=411×8=107+842-590=67×7-33=376+212=564-112-382=109+(748-261)=18+(470-416)=171+(804-563)=3/7+2/7=399+163=990-(893-663)=619+666=477-179=119-70-26=244+153-328=841-(638+163)=414-34×3=297×(970-962)=395+944+456=80+324-221=1/7+2/7=594×9-929=443-35-263=148×2=117×8-808=4/7-3/7=322-(33+135)=75-43+360=789-762+117=132×5-105=377-34=925-(515-338)=881×(509-504)=123×8=101-81=170×(194-191)=949-(577+234)=254+338+407=669+397×2=947-342+420=237×(286-279)=352-204-37=373-(176+193)=739×8=378+263+13=383+431-647=124+82+214=571×4-295=412+(371-36)=114×3-39=407-23-310=92×2-52=250+239-66=4/6-1/6=313-289=248-56=63×4+567=981-(991-909)=374-65-200=511-278-53=478+380+98=347-(189+43)=307+192=162+28×6=617+894+825=107×2+148=47×9+204=250+(289-72)=377-122=465-(241+117)=261×3=416+271+252=103×9=68×(243-239)=362×(891-885)=243×3=314-(399-290)=634-469=777-(565+27)=843×8-108=777-86×7=905-(711-317)=1/5+4/5=156-81-69=40×5=555-(197+143)=52+228=623×8-852=81-(624-562)=379-339+267=810-(464+191)=484-424+430=856-(205+142)=409-197-89=978+(617-418)=419-349+86=199×3=681+(644-177)=473×5=259-27×3=477-43×2=349+22-276=63×9+438=287-13×6=233×3=785-(569-59)=35×3-12=284+(461-399)=391×5-572=228-104=703+(939-70)=453-169×2=348×7=798-(254+164)=394-33-318=720+(322-34)=135×6=258+325×2=92+(370-129)=835-(591-306)=70×(230-223)=79-(532-479)=978-(447+128)=171×2=362×7-457=448-63×5=56×6=966-630=957-102-255=265-142+168=705+110×2=759-442=362-(319-76)=578-314+118=618×3=500-74×4=641-(392-174)=313-112+15=748-331-305=824+885=317+(113-109)=355+118=491-102×4=891-32×9=973-274-411=41×(105-100)=567×3-28=772-38×6=147×2-162=2/9+5/9=221+186-316=298+223+171=857-44×6=215-36=469-425+341=311+161×4=435-158×2=184×2=563+617-718=710×5-790=172×3-274=334-(260-157)=261+(238-40)=136×4+212=757-44-604=141+(584-565)=981-(464-204)=241+124=450-23×6=685-182=143+102=29×9+331=620+86+81=354-339=401+83=225+(456-83)=437-255-27=119×6-66=148+265-199=855-(71+413)=485+213+177=164+(340-235)=109-(157-50)=453-73×6=459-37=836+122-431=245+244=246+222-178=1/4+2/4=399-75×5=103×4=241-(993-939)=178-(196-75)=565-110-363=3/7-2/7=295-120×2=234×9=379+840=35×(165-160)=731-620+269=598-47×5=827-(169+125)=445-(44+343)=65×8=409+(341-181)=282-44=104+284-256=415-143-157=401+940+299=414-(271+80)=324+(367-284)=162+126×6=841-(591+215)=294+(353-164)=184×5=419-18×6=107+337=124+(149-27)=293-175+569=87+71=4/10-2/10=313×4=918+(886-297)=416-388+460=259-(206+11)=633+99-358=743+72+126=194-50-51=34×(21-16)=859+240+925=111-12=287+204=157×6-13=779-194+945=414-149×2=352+695=352×5=80×9-625=989+180=802-(600+52)=37×(475-467)=891+153×4=199+170-346=43+141-60=70+265-331=457-(359-175)=440-(323+74)=399-159=414-395-17=956-252=975×5=387-18+519=210+37×4=347×2=226+70×7=123×4+821=332-(148-82)=946+(855-664)=87×9+674=184-27×3=11+389+213=249+394+396=200-29×2=922-(732+90)=279-(272-206)=77×8+458=211-192=281-196+301=433-169-211=202-133-47=410+(458-343)=910+18×2=796+595-236=280-(114-47)=774×(579-575)=63×4+866=480+(640-552)=83-(642-621)=21+21+841=623-202×2=188+(942-326)=200×3+231=21+177-54=303-(61-16)=726-478-77=163+130=138×5-537=6/10-3/10=468×(395-387)=463-233=916-411-400=31×2=607×5-946=35×(289-286)=499-152-107=197×2=567×3=246×2-473=2/4-1/4=138×5=384-43×8=62×(130-123)=467-91×3=452-50×5=345×2-109=846-(493+90)=150-68-34=133×8-347=132-17=400-274+604=444-30×9=402-(32+13)=342+391=150-144+199=473-(62+238)=193-181=50×5+833=889+825+133=874-328-389=552+(771-602)=237-(258-134)=88-88+570=397×7-21=85×7-256=916×(731-725)=187+59×2=649-607=902-664=58+293=726+891-38=274-79=450-376=888-(444+412)=464-247+92=913+468×2=370-197=760-(336+399)=272-(480-404)=472+244+246=902-(618-419)=306×3-438=426-137-171=155×3+57=196+204+531=732×(543-537)=621×(868-860)=398+277-406=84+339-383=577×3=38+(627-597)=689-(694-132)=864-(500+203)=446-(80+328)=656-291-212=234-146=248-151+326=3/7+4/7=155-48=49×(204-196)=442-64-43=319+52+111=651×8=240×4-226=3/6+2/6=64×2+90=465-(50+355)=457-144+440=944-858=367+107-25=421-(389-25)=108×5+197=445-(132+293)=242+(913-819)=393+41+532=492-(81+301)=102+116+782=412-133×2=442-(89+318)=804×(597-591)=910-(630-177)=744×3-729=227+219=904+(982-377)=233+174=240+97-175=97×2-19=293-148=785×(944-936)=651×(269-261)=357-179+215=467-272=45×(171-162)=345+148-318=135+286-345=98+62×3=500-293=596-390=347+164+424=412-361+112=44×9+711=345+847=122×(211-204)=245-236+106=577×7=402-39×8=233-31×4=620×(867-858)=574+(720-612)=651×5-387=980-216-59=319×(633-629)=371-52×4=118-(270-233)=371-(286-68)=322-138-54=54-(332-278)=934-34×2=937-455=58+115×6=938×(260-254)=381-272-13=406×2-599=68×(157-152)=204×(198-195)=285-94+253=600-(74+56)=102×5=94+33+799=709+411+572=412-(29+150)=524-(952-759)=684-(706-534)=209+(299-274)=346-(318-25)=932+914=896×(146-143)=975+114×3=87×9-397=203+406-572=271+58×9=999-805=707×9-833=40×9+229=690-87×3=40+32=194×(410-406)=421-(381-336)=389+109=87×(231-226)=164×(434-428)=777-80=749+171+417=859-77+742=85×(220-213)=970×(224-219)=871+482=68×3+839=46+191+373=286-(356-135)=398-30×9=225-224+38=698×3-796=825-(50+506)=356-(144+93)=124+14+447=692-321=64+(490-30)=297+811+805=804+434-398=145×(279-273)=803×(698-695)=122+636+725=58×(191-183)=768×9-782=11×8=474×(226-223)=426-394+773=715-52×6=911-32×8=576×(568-562)=28×5+432=255+228=140+117×2=955+(565-134)=487+(493-325)=588-585+152=101×8=451-312=937-806=638-35×4=600-43=162+333-314=420+65-25=659-(184+163)=88-(481-448)=806+63×4=3/8-1/8=226×6=75+(394-22)=162×4=711-121-268=73-(337-279)=219-52=237×4-177=686-294+749=211×2=635-463=910+34-568=26×7=699+104×6=716-(934-772)=307+(903-66)=288+(379-52)=150+(398-32)=372×(581-577)=81+95+527=907-542+906=172×(328-325)=234-127+56=421×8-714=855-666-76=686×(501-495)=174-152+378=428-(51+86)=42×3=84×9=322+(422-232)=123-(199-171)=222×4-88=831-127×2=108×(248-245)=260-(54+157)=188+309=307+930-152=146-38=317×9=143+461+302=631-95×4=1/6+4/6=594×9=128×4=143×2=457-259+136=98×6+384=353×(970-967)=461-(27+276)=276+132-362=80-13+347=628+183×5=849-387-451=670+150+135=640-372+110=95+433+240=453-(484-433)=541+404+715=90×4+622=451-(420-107)=2/7+3/7=965-434-369=943+169-992=439+74+778=494×2-258=497-156-336=996-479=875-143×5=468-83×2=29×(136-128)=39×4=237+(317-189)=863-83+395=273+89=295-(435-161)=426+707+645=332+54×6=395+75×4=819-154=134-(372-283)=971-180=272-230=44×3=202+(437-286)=172+221-312=210-24-22=372-(374-101)=866×6-260=186×7=204-53-79=874-292=490+(251-88)=939+496-277=221+356=714+456=418+(488-285)=106+241-299=81+(180-88)=477-411+211=441-(126+104)=405-31-35=707×4-678=281+603+685=149-(77+47)=904×9=173+54-109=300+290=40+69=215-50×3=402-97=65×8-329=116×(69-64)=917-265×2=749+699+795=195+58=786+854-654=440-223-99=324-292=136+353=853-289-211=954-(93+452)=619-92×2=105×3=460-(457-55)=165+259-196=参考答案233+127×5=868744-(619-542)=667486-188+831=1129204×2-57=351813-696-103=14492+(426-51)=867298+(209-57)=450950×(662-657)=4750411-142+829=109867+119+81=267864-379-50=4354/7-1/7=3/7474-379-22=73325-(338-227)=21419×(162-158)=76778×4=3112104×3+785=1097139+227=366149-103=46601-10-32=559444-46×4=260663×7-645=3996540×(936-928)=432064×9-386=190316+(942-913)=345365+687+491=1543366-255=111478×2=956436+700=1136157+301-132=326411+259+190=860234+(147-123)=258993-(536-376)=83397+169+591=857157-(384-286)=59749-(204-95)=640271+858+360=148991×(442-433)=819468-121-103=244695-(258+340)=97101×3=303446-421+757=782155-39×3=38376×6-900=1356926+(924-151)=1699305-149+240=396297-(64+50)=183350×2-314=386279+276-364=191356-308+226=2742/5-1/5=1/550+251=301459-(88+347)=24961-549-241=17124×(23-17)=144230-190+21=61920-50×6=620352-137=215256×2+206=7185/8+2/8=7/8140-24×5=20746+(951-653)=1044173×2+432=778375-126=249695-329+817=1183839+185=1024647-82-318=24781×3+77=320167+502+236=90579-78+36=37289×3-40=82734×2+325=393888-24×9=672930-86×8=242289+106=395527-68-382=77219+116=335692-(94+503)=95662×(669-664)=3310400-363+380=417980+597+959=2536374+(332-33)=673709-(708-269)=270692-611+628=709545-336=20967×9=60382+29=11124-(101-95)=18484-220+777=1041801+187×4=1549134+52=186147+650-773=24375-(57+94)=224578×6=346864+176=240196+(298-220)=274766×9=689468×(436-430)=408262+85=347636+12×5=696100×5=500293-110-77=106806-(819-429)=416465+234=699374+107=48148+180=228168+170=338347-(77+97)=173432-185=247157-102-23=32386-12×7=302159+273-129=303853-98×2=657829-(59+236)=53460+419-362=117281+705-778=208176+838-113=901345+240=5851/4+3/4=1473-457+195=211446+(180-22)=604362-(174+27)=161752+301×2=1354619+527+670=1816155+481=636873+290+918=208123×(420-411)=207169+195-102=262691+415-269=837143+242+359=744184+49×7=527820-(644+132)=44266×3+170=968150+62×8=64653+(732-486)=299648×(53-44)=5832339+99-360=78802-369+331=764766+748-630=884451-(394+20)=37294-34+111=37158+339+628=1025931-594-13=324332-143=189150+146-281=15841×8-201=6527898-146-98=654392-251-65=76877-(194+364)=319465-292=173653+74+112=839992+91-988=95943-131×4=419767×4-61=30073/6-2/6=1/6940-56-207=67786+464=550494-209+155=440215+237-258=19440×4=160415-(286-274)=403116×6=696607×2-585=629502+140-333=309492+882+400=1774329×2-639=19420-(44+12)=364651-(151+203)=29716×4+345=409159×3-29=44874×9=666124×(202-199)=372215×2-109=321417×2-213=621417+244=661338×8-726=1978524+208+593=1325221+333+273=827711+(458-247)=922281-(94+153)=34684-545-79=60707+(797-18)=1486903-413+750=1240407-26×7=225575-21+48=602329+525=854107×2+183=39729-23+190=1964/9-1/9=3/9199+517=716134+657+134=925494×(220-214)=296435+(550-65)=520248×(247-244)=744435-86+190=539282-(434-391)=239364-(125+20)=219604-105-153=346354-(363-147)=138583×6-200=3298787-90×7=157927+848-346=1429160+741=9011/6+5/6=1110×5-468=82406+(482-70)=818494-34×9=188463-39×3=346386-43×3=257137+138=275678+34+279=991463-462+86=87888+(851-206)=1533594+37+107=738487+427+999=1913215-49-155=11336-124=212117-(430-360)=47375+230×2=835479+461-431=509461-(180+255)=26228×4-714=198199×3+360=957116×(386-380)=696144+94×9=990147+506+335=988268-56×2=156573+810-228=1155828+321-603=546485+231=716763-(736-146)=17313+(382-371)=24771-46-195=530799-(224-73)=648633+483-835=281236-75×3=11426+246=672998+456-57=1397305+180+556=1041180-47+172=3055/7-2/7=3/7416-(101+263)=52411×8=3288107+842-590=35967×7-33=436376+212=588564-112-382=70109+(748-261)=59618+(470-416)=72171+(804-563)=4123/7+2/7=5/7399+163=562990-(893-663)=760619+666=1285477-179=298119-70-26=23244+153-328=69841-(638+163)=40414-34×3=312297×(970-962)=2376395+944+456=179580+324-221=1831/7+2/7=3/7594×9-929=4417443-35-263=145148×2=296117×8-808=1284/7-3/7=1/7322-(33+135)=15475-43+360=392789-762+117=144132×5-105=555377-34=343925-(515-338)=748881×(509-504)=4405123×8=984101-81=20170×(194-191)=510949-(577+234)=138254+338+407=999669+397×2=1463947-342+420=1025237×(286-279)=1659352-204-37=111373-(176+193)=4739×8=5912378+263+13=654383+431-647=167124+82+214=420571×4-295=1989412+(371-36)=747114×3-39=303407-23-310=7492×2-52=132250+239-66=4234/6-1/6=3/6313-289=24248-56=19263×4+567=819981-(991-909)=899374-65-200=109511-278-53=180478+380+98=956347-(189+43)=115307+192=499162+28×6=330617+894+825=2336107×2+148=36247×9+204=627250+(289-72)=467377-122=255465-(241+117)=107261×3=783416+271+252=939103×9=92768×(243-239)=272362×(891-885)=2172243×3=729314-(399-290)=205634-469=165777-(565+27)=185843×8-108=6636777-86×7=175905-(711-317)=5111/5+4/5=1156-81-69=640×5=200555-(197+143)=21552+228=280623×8-852=413281-(624-562)=19379-339+267=307810-(464+191)=155484-424+430=490856-(205+142)=509409-197-89=123978+(617-418)=1177419-349+86=156199×3=597681+(644-177)=1148473×5=2365259-27×3=178477-43×2=391349+22-276=9563×9+438=1005287-13×6=209233×3=699785-(569-59)=27535×3-12=93284+(461-399)=346391×5-572=1383228-104=124703+(939-70)=1572453-169×2=115348×7=2436798-(254+164)=380394-33-318=43720+(322-34)=1008135×6=810258+325×2=90892+(370-129)=333835-(591-306)=55070×(230-223)=49079-(532-479)=26978-(447+128)=403171×2=342362×7-457=2077448-63×5=13356×6=336966-630=336957-102-255=600265-142+168=291705+110×2=925759-442=317362-(319-76)=119578-314+118=382618×3=1854500-74×4=204641-(392-174)=423313-112+15=216748-331-305=112824+885=1709317+(113-109)=321355+118=473491-102×4=83891-32×9=603973-274-411=28841×(105-100)=205567×3-28=1673772-38×6=544147×2-162=1322/9+5/9=7/9221+186-316=91298+223+171=692857-44×6=593215-36=179469-425+341=385311+161×4=955435-158×2=119184×2=368563+617-718=462710×5-790=2760172×3-274=242334-(260-157)=231261+(238-40)=459136×4+212=756757-44-604=109141+(584-565)=160981-(464-204)=721241+124=365450-23×6=312685-182=503143+102=24529×9+331=592620+86+81=787354-339=15401+83=484225+(456-83)=598437-255-27=155119×6-66=648148+265-199=214855-(71+413)=371485+213+177=875164+(340-235)=269109-(157-50)=2453-73×6=15459-37=422836+122-431=527245+244=489246+222-178=2901/4+2/4=3/4399-75×5=24103×4=412241-(993-939)=187178-(196-75)=57565-110-363=923/7-2/7=1/7295-120×2=55234×9=2106379+840=121935×(165-160)=175731-620+269=380598-47×5=363827-(169+125)=533445-(44+343)=5865×8=520409+(341-181)=569282-44=238104+284-256=132415-143-157=115401+940+299=1640414-(271+80)=63324+(367-284)=407162+126×6=918841-(591+215)=35294+(353-164)=483184×5=920419-18×6=311107+337=444124+(149-27)=246293-175+569=68787+71=1584/10-2/10=2/10313×4=1252918+(886-297)=1507416-388+460=488259-(206+11)=42633+99-358=374743+72+126=941194-50-51=9334×(21-16)=170859+240+925=2024111-12=99287+204=491157×6-13=929779-194+945=1530414-149×2=116352+695=1047352×5=176080×9-625=95989+180=1169802-(600+52)=15037×(475-467)=296891+153×4=1503199+170-346=2343+141-60=12470+265-331=4457-(359-175)=273440-(323+74)=43399-159=240414-395-17=2956-252=704975×5=4875387-18+519=888210+37×4=358347×2=694226+70×7=716123×4+821=1313332-(148-82)=266946+(855-664)=113787×9+674=1457184-27×3=10311+389+213=613249+394+396=1039200-29×2=142922-(732+90)=100279-(272-206)=21377×8+458=1074211-192=19281-196+301=386433-169-211=53202-133-47=22410+(458-343)=525910+18×2=946796+595-236=1155280-(114-47)=213774×(579-575)=309663×4+866=1118480+(640-552)=56883-(642-621)=6221+21+841=883623-202×2=219188+(942-326)=804200×3+231=83121+177-54=144303-(61-16)=258726-478-77=171163+130=293138×5-537=1536/10-3/10=3/10468×(395-387)=3744463-233=230916-411-400=10531×2=62607×5-946=208935×(289-286)=105499-152-107=240197×2=394567×3=1701246×2-473=192/4-1/4=1/4138×5=690384-43×8=4062×(130-123)=434467-91×3=194452-50×5=202345×2-109=581846-(493+90)=263150-68-34=48133×8-347=717132-17=115400-274+604=730444-30×9=174402-(32+13)=357342+391=733150-144+199=205473-(62+238)=173193-181=1250×5+833=1083889+825+133=1847874-328-389=157552+(771-602)=721237-(258-134)=11388-88+570=570397×7-21=275885×7-256=339916×(731-725)=5496187+59×2=305649-607=42902-664=23858+293=351726+891-38=1579274-79=195450-376=74888-(444+412)=32464-247+92=309913+468×2=1849370-197=173760-(336+399)=25272-(480-404)=196472+244+246=962902-(618-419)=703306×3-438=480426-137-171=118155×3+57=522196+204+531=931732×(543-537)=4392621×(868-860)=4968398+277-406=26984+339-383=40577×3=173138+(627-597)=68689-(694-132)=127864-(500+203)=161446-(80+328)=38656-291-212=153234-146=88248-151+326=4233/7+4/7=1155-48=10749×(204-196)=392442-64-43=335319+52+111=482651×8=5208240×4-226=7343/6+2/6=5/664×2+90=218465-(50+355)=60457-144+440=753944-858=86367+107-25=449421-(389-25)=57108×5+197=737445-(132+293)=20242+(913-819)=336393+41+532=966492-(81+301)=110102+116+782=1000412-133×2=146442-(89+318)=35804×(597-591)=4824910-(630-177)=457744×3-729=1503227+219=446904+(982-377)=1509233+174=407240+97-175=16297×2-19=175293-148=145785×(944-936)=6280651×(269-261)=5208357-179+215=393467-272=19545×(171-162)=405345+148-318=175135+286-345=7698+62×3=284500-293=207596-390=206347+164+424=935412-361+112=16344×9+711=1107345+847=1192122×(211-204)=854245-236+106=115577×7=4039402-39×8=90233-31×4=109620×(867-858)=5580574+(720-612)=682651×5-387=2868980-216-59=705319×(633-629)=1276371-52×4=163118-(270-233)=81371-(286-68)=153322-138-54=13054-(332-278)=0934-34×2=866937-455=48258+115×6=748938×(260-254)=5628381-272-13=96406×2-599=21368×(157-152)=340204×(198-195)=612285-94+253=444600-(74+56)=470102×5=51094+33+799=926709+411+572=1692412-(29+150)=233524-(952-759)=331684-(706-534)=512209+(299-274)=234346-(318-25)=53932+914=1846896×(146-143)=2688975+114×3=131787×9-397=386203+406-572=37271+58×9=793999-805=194707×9-833=553040×9+229=589690-87×3=42940+32=72194×(410-406)=776421-(381-336)=376389+109=49887×(231-226)=435164×(434-428)=984777-80=697749+171+417=1337859-77+742=152485×(220-213)=595970×(224-219)=4850871+482=135368×3+839=104346+191+373=610286-(356-135)=65398-30×9=128225-224+38=39698×3-796=1298825-(50+506)=269356-(144+93)=119124+14+447=585692-321=37164+(490-30)=52