三年級(jí)數(shù)學(xué)(上)計(jì)算題專(zhuān)項(xiàng)練習(xí)附答案集錦313+58-201=530-(752-547)=767-116-14=266-(21+192)=352-254+178=840-(563-167)=449-203+944=207×3-31=39+188=912-719=934+(434-383)=274+62=548×3=114+324-259=499-(44+264)=168+194=1/6+3/6=941-610-288=576×3-531=490-31×7=159-78+278=662-125=98×9+764=108×9-236=623-(601-208)=3/7-2/7=5/6-1/6=324-156=463-248=594-(831-457)=533+979-394=12×3=415+140×4=190×3-187=632×8-81=198+(676-354)=424-(440-223)=359-24×2=495-(73+205)=912-101-266=565+812-48=101×3=123+65=783-32×5=292+202=556×6=522-181×2=613-(204+315)=25×4+347=117+135×2=481-(392-293)=467-312+168=894-349-481=347-22-265=597-(249+204)=446+78=281+195+106=982×(853-846)=745×9-188=500-346+299=470+(882-275)=24×(160-157)=469-249=355-40×5=726-272-118=455-114=184×4-276=356-192-34=49×(284-279)=368+89=244-72-101=422-258+160=877×7-819=560×3=782-512+94=102+348-159=543×3-556=269+83+242=989+317-980=951-(890-449)=784-(149+281)=4/9+2/9=61+151=298×9=157-(276-151)=184+146+303=181×5-424=517-157=976-(116+508)=978-413=150×(396-392)=667-23×5=282-155=488-98×2=112×5+361=223-99=199×3=862-(577-109)=594-574=57-(117-62)=416+(407-225)=412-(76+25)=342×2-531=811+(995-790)=762×5=481+589+726=124+(574-122)=33+240-223=43+79×2=137×4-403=461-(117+199)=924×(398-391)=198-170=346-(480-164)=310-82=114×(237-231)=330-(21+209)=108×(458-455)=162+(662-352)=257×2+606=107×4=699+960-523=780-50×5=187+121×3=500-32×7=145+616-112=161×(175-169)=881-398+433=311-40-253=61+288=86-(457-410)=277×2+255=412-(33+263)=429+(154-51)=142+324+50=248-58+306=425-170×2=444-324=406-(14+329)=766+708-299=42×8+448=141+17×8=533+100+152=92×2=2/7-1/7=262-(26+92)=3/8-1/8=156+35×4=496-103-334=104+(720-253)=41×7=983-35-555=626+130-473=494-(235+60)=892-163×4=819-394=334+39-81=239-38×6=980+776+766=474+(443-13)=95+330=809-396=447-(492-390)=760+937+797=623+(210-177)=244-172=272-(43+80)=656-(307+292)=656-292-62=960-(287+472)=249+147=177+447=418-177=964-300-356=824+37+91=89+56×2=942+641=389+(274-232)=973-(999-169)=759+135-830=438-341=120×(326-319)=236-11-18=245-(357-344)=224×3=239×3=134-18-105=47+70=683×(373-365)=430-(198+162)=140+148=607-410-134=122-61+345=895-566=741+450+84=108×5+200=449-416+170=265-68+226=451-(113+305)=125×(269-264)=613+522-832=832+555-802=13+314-217=667-581+433=100+437=368-234=581-236=84×(320-315)=90×(779-772)=108-89=608×9-408=572-71=497+(419-138)=338+50×4=190+659+41=370×(927-923)=779+795-639=814-(493+271)=974-916+129=421-110+681=214-(226-78)=442-(135+49)=314-166+978=952-577+651=238+(479-310)=313+533=770×9=62+164=377-(337-92)=824+431=273+63-234=325+63×4=377+904-775=503-236×2=330×3-524=910-(270-204)=298-162+299=396-(423-266)=427×(999-992)=1/7+4/7=406-38-198=414-112-220=107×8=411+(671-540)=388-(160+197)=1/8+6/8=328×3-731=227-24-183=564-138×3=274-27-246=339×5-658=406×9-920=273×5=367×2+538=153×4=604-41-515=286+(107-76)=86+(286-279)=25+217-68=143×5-658=494+543+479=936×5=97+319-333=302×9-107=138+(841-626)=167×3-357=951-447=292-57×5=178×5-142=988-320+418=272-(78+122)=222+225-183=321-234+130=227×2-439=176-28×6=484-29×6=861-27-483=969-122×2=91×3+322=139+(194-10)=131+356-311=473-(479-232)=404×2=364-56+43=25×8+365=105+333+525=15+487+487=217+232×3=563+120×8=515+627-248=666-191×2=311+117=494-87×4=65×7=143+194=469-(121+38)=618+510+79=957-857-52=724×9-907=788-(271+372)=4/7-2/7=137×(87-81)=49×2+385=56×2+476=935-(552-65)=486×2=309-16×7=362-313+449=331-186+336=743-(624-143)=676-213×3=261+368+17=189×(851-845)=54×(489-480)=97-(432-368)=140+288=115×6=485+604+521=1/4+3/4=208-(312-110)=496-(413-187)=343-220+69=619-(546+19)=61-14+190=295-113×2=60+105×5=922×(845-842)=499×2+247=623×8-683=197×7=559-178=312-(52+174)=996-143+357=394-144×2=270+374+419=296+189-59=425×2-32=372+486=388×(267-258)=245-(101+98)=132×8=280×3-14=834-631-66=131-(298-245)=154-15×2=238+149-52=188×4+183=184×(486-481)=911-382=243×4=811-(984-713)=139+(417-318)=359-245+187=866-609+531=390+(170-143)=387-27×7=521-22=398-146=82×6=310+(448-123)=387×(867-859)=483×2+620=324-40×5=517×2=1/5+2/5=166×5=32+(757-566)=4/10+5/10=816-314-472=895-263×3=717-(895-708)=904-(765+83)=371-128×2=614-339=910-(217-61)=64×3+433=460-149=410-400+23=482-189+91=630×3-347=154-(82-77)=18×(322-314)=203-73-52=44+(776-238)=101×4=74+29=49+215=175×5-25=86×7=847+398+393=169+325=266×2+350=189-(56+125)=112×4-244=414-71=47+235+394=63+325=261-136-79=79×(205-197)=96×6-531=454-384-59=59+222=411-405+326=364-76×2=511+122-629=109+229-195=495-(299-136)=426-69×6=408+772=146+(275-194)=638+680-985=371-(64+23)=542-(342+174)=437-(102-90)=483×7-621=577+377+331=964-793=742-361-203=372+125-84=2/5-1/5=973+72+769=902+104×5=891×(134-131)=263×(474-471)=44×8=488-22×7=185×5-905=365×4-290=692-516-112=235-11×2=455-193-70=105+69=216+394+112=557+492+834=204-(154+43)=176×5-825=365×2-11=71+(888-236)=30×4+282=181×(266-263)=822-(853-151)=4/9-1/9=451-30=454-(40+348)=27×6+621=856+(706-454)=734×(930-927)=408×2=380-363=396×6=558+756-391=990-243-260=318×3=457-133-78=242+86=446-82-201=463+(479-408)=38×(426-419)=372-(17+112)=252×6=372-113×3=310+403×2=115-96+337=352-162+133=360-350+114=460+(697-169)=408-(338+51)=129×7-837=413-59×3=400-20×8=973-463+712=117×2=883-370=468+(826-209)=842+481×2=840-14×6=304×3-813=106+13+961=996+174×3=487×4-242=861+(621-373)=35+807-186=256+121=490-20=488-(360-215)=484-(500-494)=238+188-66=963+921-157=309-259=277-222=991-256-76=206-(254-172)=928+824+997=452×(84-80)=833-302-415=535-327=287-136-75=1/6+4/6=168×5=71×(160-152)=425+(450-75)=767-(939-378)=428-(359-48)=221×(200-196)=726+138×2=407+128+46=88+(437-128)=5/9-4/9=141×5-91=132×3=399-60-202=552-(153+310)=500+438-740=600-(86+31)=817×(776-767)=493-(103+199)=15×9+385=99+375=597×5-976=70×5+451=863-101×3=374-(362-275)=2/3-1/3=823-(663-386)=271-(354-281)=747+61×8=73×2=482-51-365=478-(728-534)=159×(362-359)=330-11×9=214+(707-431)=7/10-2/10=1/7+5/7=493+(202-149)=341+(298-229)=946-372-405=306-(332-315)=431-109-12=114+198-72=439-43-181=2/4-1/4=173×5+547=561-91×2=232+201=267+386=634-(285+223)=285×(852-846)=778-(163+170)=691+85×7=157-43×3=905-757+854=589+27-581=950+546-470=245-29×3=386+128+285=134×2=358+936-890=87+202=319+217+92=335×2+168=134×(145-140)=303+34×7=44×(354-346)=422-(147+134)=388×9=341-173-35=17×6+355=334-296=487-(334+88)=624-(570-336)=323-58×2=609×7=912-347+406=264+202=45×(208-205)=201+98×3=76-60+383=976+(769-729)=177+122=391-(218+38)=836+513+268=173+499-404=340-49×5=533+92+84=430-145=247+678+167=623-(18+519)=187+262-188=400-(247+28)=213+431=733-509+167=453+(493-80)=29+697+95=600+(985-101)=276-234=21×3=169+278×2=167+323+68=205-(59-19)=986-263+770=176+269×3=531-64+336=313+604+804=762+552=177-141=61×4=565-514=809-277×2=479-173-97=203+(360-151)=603+149×3=319-269=202+67=116-56+259=87+100+804=885-126×2=74×6=994-44×2=130×4=58×9-230=368-275+481=982-(766+68)=565+143=55+(460-230)=199×(405-401)=370-255+193=42×3+355=682-353+587=65×5-179=14×(389-383)=297×(262-253)=365+837=391-126-119=281+80=498-52×6=82×8=462-85+29=236×5=290+17×6=335×(607-602)=969+709-350=550+203+151=510-108=34+151+270=7/10-3/10=739-346=854×8-525=966-64-798=367+57-158=876-510=211-29-99=740×3=865×8-624=98×4+306=35×7-106=21×(493-487)=500-120=404-343=88+446+40=235×(393-388)=316×3-427=244+(255-73)=429-(52+235)=387+132×3=375-26×4=243×3=898-191-72=719-(166+359)=118+495+516=257+(95-39)=228+586+755=484-45×3=118×(239-234)=357×(356-352)=63×2+499=884+140×6=254×5-573=312+(179-48)=380×2-534=350+(414-208)=401+(147-76)=943-136×5=159+27-63=350+(484-238)=808-589=116×(319-313)=178×(984-977)=164+314+243=389+(303-90)=323×7-655=565-(211+160)=524-(432+72)=327-(464-397)=490-(12+256)=76+702+166=366×4=173+317-165=996-399-357=107+214+618=662-(98+388)=64+117-124=338+150+389=418+(464-42)=181-46×3=191+75=343-53×4=261×4=143-(151-43)=96+114=61+482+256=51+154=382+640=960+709-844=64+540+147=553+(762-641)=86+71-74=571+659-754=880×6-214=390-147+27=371-283-38=1/9+5/9=256+46=957-69-493=738×(596-589)=276+(380-29)=302-85=245+(612-586)=589-(988-501)=259-100+331=3/6+2/6=447-(302+73)=662-511+538=347-57-86=894-162+243=915-276-97=604×4-59=727-273+898=158×6-884=98+296-173=660-(636-371)=190-104+137=88-24=259+(477-69)=191×2=764+58-91=206-145+997=151+276=377-291-57=537+643+994=123-118+479=717+977-292=386×4=225+472+281=171+241=154+461+214=571-315+762=996×(803-796)=899+335-213=76+592+240=964×(908-904)=57×6-104=194-(226-44)=363×(929-924)=903-132-53=988-(415+316)=387-(330-269)=198-60×3=11+(930-170)=538-(272-30)=468-(149-67)=89+(291-275)=433×8-958=72×3+907=185+92-118=116+530+113=274+(295-51)=56+255-200=677×2-424=398+51-446=737-(430+59)=913-293=103×7+170=366×5-498=139+319=37+36+329=220-(237-153)=799-97×8=309×5-963=676×3-606=364-(246-207)=158+291=787+130+75=668-(431-76)=471×9=934-475=209+99=941×2=158×9-936=164+525=326×3-928=99+396-337=607-79×4=866-141+878=653-254×2=171×(231-228)=327+60×7=44×(324-317)=187×(193-190)=144+(139-92)=78×9=56+765+159=675+254=880-(198-19)=483+70+258=245×3=459+(301-10)=897-(913-644)=350+11×3=348-98=961-135-373=96-(17+13)=344-140-164=919-115×5=796-(522-36)=11+654+275=299-123=797-114+176=177+225-365=570-(197-20)=831-(426+81)=105+78+331=882-183+201=91×3+838=390-125-195=130+417+103=475-73-300=333+95=600+96+99=999×8=102×7=780-48×5=128×(184-177)=500-144-263=139-(18+62)=626-173×2=900+538-760=473-66=754-645+965=12+334-124=273+802=467-220+92=10×(125-117)=153+(331-227)=715+512=273+154×2=384-(21+261)=789×(841-837)=248+(137-107)=122+113=742×(557-549)=69×(254-248)=5/8+2/8=438-215=參考答案313+58-201=170530-(752-547)=325767-116-14=637266-(21+192)=53352-254+178=276840-(563-167)=444449-203+944=1190207×3-31=59039+188=227912-719=193934+(434-383)=985274+62=336548×3=1644114+324-259=179499-(44+264)=191168+194=3621/6+3/6=4/6941-610-288=43576×3-531=1197490-31×7=273159-78+278=359662-125=53798×9+764=1646108×9-236=736623-(601-208)=2303/7-2/7=1/75/6-1/6=4/6324-156=168463-248=215594-(831-457)=220533+979-394=111812×3=36415+140×4=975190×3-187=383632×8-81=4975198+(676-354)=520424-(440-223)=207359-24×2=311495-(73+205)=217912-101-266=545565+812-48=1329101×3=303123+65=188783-32×5=623292+202=494556×6=3336522-181×2=160613-(204+315)=9425×4+347=447117+135×2=387481-(392-293)=382467-312+168=323894-349-481=64347-22-265=60597-(249+204)=144446+78=524281+195+106=582982×(853-846)=6874745×9-188=6517500-346+299=453470+(882-275)=107724×(160-157)=72469-249=220355-40×5=155726-272-118=336455-114=341184×4-276=460356-192-34=13049×(284-279)=245368+89=457244-72-101=71422-258+160=324877×7-819=5320560×3=1680782-512+94=364102+348-159=291543×3-556=1073269+83+242=594989+317-980=326951-(890-449)=510784-(149+281)=3544/9+2/9=6/961+151=212298×9=2682157-(276-151)=32184+146+303=633181×5-424=481517-157=360976-(116+508)=352978-413=565150×(396-392)=600667-23×5=552282-155=127488-98×2=292112×5+361=921223-99=124199×3=597862-(577-109)=394594-574=2057-(117-62)=2416+(407-225)=598412-(76+25)=311342×2-531=153811+(995-790)=1016762×5=3810481+589+726=1796124+(574-122)=57633+240-223=5043+79×2=201137×4-403=145461-(117+199)=145924×(398-391)=6468198-170=28346-(480-164)=30310-82=228114×(237-231)=684330-(21+209)=100108×(458-455)=324162+(662-352)=472257×2+606=1120107×4=428699+960-523=1136780-50×5=530187+121×3=550500-32×7=276145+616-112=649161×(175-169)=966881-398+433=916311-40-253=1861+288=34986-(457-410)=39277×2+255=809412-(33+263)=116429+(154-51)=532142+324+50=516248-58+306=496425-170×2=85444-324=120406-(14+329)=63766+708-299=117542×8+448=784141+17×8=277533+100+152=78592×2=1842/7-1/7=1/7262-(26+92)=1443/8-1/8=2/8156+35×4=296496-103-334=59104+(720-253)=57141×7=287983-35-555=393626+130-473=283494-(235+60)=199892-163×4=240819-394=425334+39-81=292239-38×6=11980+776+766=2522474+(443-13)=90495+330=425809-396=413447-(492-390)=345760+937+797=2494623+(210-177)=656244-172=72272-(43+80)=149656-(307+292)=57656-292-62=302960-(287+472)=201249+147=396177+447=624418-177=241964-300-356=308824+37+91=95289+56×2=201942+641=1583389+(274-232)=431973-(999-169)=143759+135-830=64438-341=97120×(326-319)=840236-11-18=207245-(357-344)=232224×3=672239×3=717134-18-105=1147+70=117683×(373-365)=5464430-(198+162)=70140+148=288607-410-134=63122-61+345=406895-566=329741+450+84=1275108×5+200=740449-416+170=203265-68+226=423451-(113+305)=33125×(269-264)=625613+522-832=303832+555-802=58513+314-217=110667-581+433=519100+437=537368-234=134581-236=34584×(320-315)=42090×(779-772)=630108-89=19608×9-408=5064572-71=501497+(419-138)=778338+50×4=538190+659+41=890370×(927-923)=1480779+795-639=935814-(493+271)=50974-916+129=187421-110+681=992214-(226-78)=66442-(135+49)=258314-166+978=1126952-577+651=1026238+(479-310)=407313+533=846770×9=693062+164=226377-(337-92)=132824+431=1255273+63-234=102325+63×4=577377+904-775=506503-236×2=31330×3-524=466910-(270-204)=844298-162+299=435396-(423-266)=239427×(999-992)=29891/7+4/7=5/7406-38-198=170414-112-220=82107×8=856411+(671-540)=542388-(160+197)=311/8+6/8=7/8328×3-731=253227-24-183=20564-138×3=150274-27-246=1339×5-658=1037406×9-920=2734273×5=1365367×2+538=1272153×4=612604-41-515=48286+(107-76)=31786+(286-279)=9325+217-68=174143×5-658=57494+543+479=1516936×5=468097+319-333=83302×9-107=2611138+(841-626)=353167×3-357=144951-447=504292-57×5=7178×5-142=748988-320+418=1086272-(78+122)=72222+225-183=264321-234+130=217227×2-439=15176-28×6=8484-29×6=310861-27-483=351969-122×2=72591×3+322=595139+(194-10)=323131+356-311=176473-(479-232)=226404×2=808364-56+43=35125×8+365=565105+333+525=96315+487+487=989217+232×3=913563+120×8=1523515+627-248=894666-191×2=284311+117=428494-87×4=14665×7=455143+194=337469-(121+38)=310618+510+79=1207957-857-52=48724×9-907=5609788-(271+372)=1454/7-2/7=2/7137×(87-81)=82249×2+385=48356×2+476=588935-(552-65)=448486×2=972309-16×7=197362-313+449=498331-186+336=481743-(624-143)=262676-213×3=37261+368+17=646189×(851-845)=113454×(489-480)=48697-(432-368)=33140+288=428115×6=690485+604+521=16101/4+3/4=1208-(312-110)=6496-(413-187)=270343-220+69=192619-(546+19)=5461-14+190=237295-113×2=6960+105×5=585922×(845-842)=2766499×2+247=1245623×8-683=4301197×7=1379559-178=381312-(52+174)=86996-143+357=1210394-144×2=106270+374+419=1063296+189-59=426425×2-32=818372+486=858388×(267-258)=3492245-(101+98)=46132×8=1056280×3-14=826834-631-66=137131-(298-245)=78154-15×2=124238+149-52=335188×4+183=935184×(486-481)=920911-382=529243×4=972811-(984-713)=540139+(417-318)=238359-245+187=301866-609+531=788390+(170-143)=417387-27×7=198521-22=499398-146=25282×6=492310+(448-123)=635387×(867-859)=3096483×2+620=1586324-40×5=124517×2=10341/5+2/5=3/5166×5=83032+(757-566)=2234/10+5/10=9/10816-314-472=30895-263×3=106717-(895-708)=530904-(765+83)=56371-128×2=115614-339=275910-(217-61)=75464×3+433=625460-149=311410-400+23=33482-189+91=384630×3-347=1543154-(82-77)=14918×(322-314)=144203-73-52=7844+(776-238)=582101×4=40474+29=10349+215=264175×5-25=85086×7=602847+398+393=1638169+325=494266×2+350=882189-(56+125)=8112×4-244=204414-71=34347+235+394=67663+325=388261-136-79=4679×(205-197)=63296×6-531=45454-384-59=1159+222=281411-405+326=332364-76×2=212511+122-629=4109+229-195=143495-(299-136)=332426-69×6=12408+772=1180146+(275-194)=227638+680-985=333371-(64+23)=284542-(342+174)=26437-(102-90)=425483×7-621=2760577+377+331=1285964-793=171742-361-203=178372+125-84=4132/5-1/5=1/5973+72+769=1814902+104×5=1422891×(134-131)=2673263×(474-471)=78944×8=352488-22×7=334185×5-905=20365×4-290=1170692-516-112=64235-11×2=213455-193-70=192105+69=174216+394+112=722557+492+834=1883204-(154+43)=7176×5-825=55365×2-11=71971+(888-236)=72330×4+282=402181×(266-263)=543822-(853-151)=1204/9-1/9=3/9451-30=421454-(40+348)=6627×6+621=783856+(706-454)=1108734×(930-927)=2202408×2=816380-363=17396×6=2376558+756-391=923990-243-260=487318×3=954457-133-78=246242+86=328446-82-201=163463+(479-408)=53438×(426-419)=266372-(17+112)=243252×6=1512372-113×3=33310+403×2=1116115-96+337=356352-162+133=323360-350+114=124460+(697-169)=988408-(338+51)=19129×7-837=66413-59×3=236400-20×8=240973-463+712=1222117×2=234883-370=513468+(826-209)=1085842+481×2=1804840-14×6=756304×3-813=99106+13+961=1080996+174×3=1518487×4-242=1706861+(621-373)=110935+807-186=656256+121=377490-20=470488-(360-215)=343484-(500-494)=478238+188-66=360963+921-157=1727309-259=50277-222=55991-256-76=659206-(254-172)=124928+824+997=2749452×(84-80)=1808833-302-415=116535-327=208287-136-75=761/6+4/6=5/6168×5=84071×(160-152)=568425+(450-75)=800767-(939-378)=206428-(359-48)=117221×(200-196)=884726+138×2=1002407+128+46=58188+(437-128)=3975/9-4/9=1/9141×5-91=614132×3=396399-60-202=137552-(153+310)=89500+438-740=198600-(86+31)=483817×(776-767)=7353493-(103+199)=19115×9+385=52099+375=474597×5-976=200970×5+451=801863-101×3=560374-(362-275)=2872/3-1/3=1/3823-(663-386)=546271-(354-281)=198747+61×8=123573×2=146482-51-365=66478-(728-534)=284159×(362-359)=477330-11×9=231214+(707-431)=4907/10-2/10=5/101/7+5/7=6/7493+(202-149)=546341+(298-229)=410946-372-405=169306-(332-315)=289431-109-12=310114+198-72=240439-43-181=2152/4-1/4=1/4173×5+547=1412561-91×2=379232+201=433267+386=653634-(285+223)=126285×(852-846)=1710778-(163+170)=445691+85×7=1286157-43×3=28905-757+854=1002589+27-581=35950+546-470=1026245-29×3=158386+128+285=799134×2=268358+936-890=40487+202=289319+217+92=628335×2+168=838134×(145-140)=670303+34×7=54144×(354-346)=352422-(147+134)=141388×9=3492341-173-35=13317×6+355=457334-296=38487-(334+88)=65624-(570-336)=390323-58×2=207609×7=4263912-347+406=971264+202=46645×(208-205)=135201+98×3=49576-60+383=399976+(769-729)=1016177+122=299391-(218+38)=135836+513+268=1617173+499-404=268340-49×5=95533+92+84=709430-145=285247+678+167=1092623-(18+519)=86187+262-188=261400-(247+28)=125213+431=644733-509+167=391453+(493-80)=86629+697+95=821600+(985-101)=1484276-234=4221×3=63169+278×2=725167+323+68=558205-(59-19)=165986-263+770=1493176+269×3=983531-64+336=803313+604+804=1721762+552=1314177-141=3661×4=244565-514=51809-277×2=255479-173-97=209203+(360-151)=412603+149×3=1050319-269=50202+67=269116-56+259=31987+100+804=991885-126×2=63374×6=444994-44×2=906130×4=52058×9-230=292368-275+481=574982-(766+68)=148565+143=70855+(460-230)=285199×(405-401)=796370-255+193=30842×3+355=481682-353+587=91665×5-179=14614×(389-383)=84297×(262-253)=2673365+837=1202391-126-119=146281+80=361498-52×6=18682×8=656462-85+29=406236×5=1180290+17×6=392335×(607-602)=1675969+709-350=1328550+203+151=904510-108=40234+151+270=4557/10-3/10=4/10739-346=393854×8-525=6307966-64-798=104367+57-158=266876-510=366211-29-99=83740×3=2220865×8-624=629698×4+306=69835×7-106=13921×(493-487)=126500-120=380404-343=6188+446+40=574235×(393-388)=1175316×3-427=521244+(255-73)=426429-(52+235)=142387+132×3=783375-26×4=271243×3=729898-191-72=635719-(166+359)=194118+495+516=1129257+(95-39)=313228+586+755=1569484-45×3=349118×(239-234)=590357×(356-352)=142863×2+499=625884+140×6=1724254×5-573=697312+(179-48)=443380×2-534=226350+(414-208)=556401+(147-76)=472943-136×5=263159+27-63=123350+(484-238)=596808-589=219116×(319-313)=696178×(984-977)=1246164+314+243=721389+(303-90)=602323×7-655=1606565-(211+160)=194524-(432+72)=20327-(464-397)=260490-(12+256)=22276+702+166=944366×4=1464173+317-165=325996-399-357=240107+214+618=939662-(98+388)=17664+117-124=57338+150+389=877418+(464-42)=840181-46×3=43191+75=266343-53×4=131261×4=1044143-(151-43)=3596+114=21061+482+256=79951+154=205382+640=1