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281-(432-195)=266+789-569=607-(418+150)=185+622+839=701-695+550=112-47+327=2/7+3/7=457-401+343=475-414=356×2-621=5/8+3/8=174×5=960-(174+201)=391×6-676=595+21×8=372-34=812-497-291=217+134=20×5=174+(307-306)=80+166=68×3+264=59×(488-485)=452+(339-230)=23+793-732=118×8=655+158+135=505+87+173=299+65=725-(469-39)=617×(833-827)=382-80+150=405-337-10=3/5-2/5=520×(386-383)=635-81=318×2=607×3=306+45-156=157+111=724-585+216=471×8-869=192+352+822=483-42=178×7=744-56×6=458-150-191=793-550=382×(661-655)=65×(135-129)=392-48=41+(483-382)=188×8-609=389-30×8=184-57=80+(349-130)=67×2+955=488×(433-428)=244-(206-97)=876-(229+41)=733-324=229+208+707=276+276=2/8+4/8=107×9+54=251-130+202=118+534=57×4+157=420-42=451-210=768-539=329-(191+26)=493-(25+53)=330+32+964=716×(271-263)=932×8=633×(43-34)=687-313=170×2-240=283+126=986+494=369×6-581=86+229=574+493-897=728-349=725+782+863=204×2=830×9-898=39+126-24=123×3-307=833+125-745=350×(105-97)=262-79-15=224-(134-128)=102×(90-86)=908+266-928=69+425-239=217+38=425-(235-98)=822×6-658=403-393+265=169+288-53=598-146+897=326-290=75+177×3=109×7=122+141-136=336-(113+151)=367+47-227=523-66×4=896-(333+172)=627-345+968=199-(20-18)=351+(97-11)=78×(213-207)=178-111+40=168-48+125=60×2=16×2+377=551-(241-202)=661-(101+507)=242-203=468+303=264-58+236=2/4-1/4=28+852-145=237×8=772+524+246=372-41×7=2/6+3/6=959-269=99+228=893-(951-864)=554×(824-815)=737+616-24=149+320+77=77+205=662-473-128=279-126+344=220-(353-341)=346-(790-674)=127-20×3=156×(196-191)=369-29×3=793-642+289=27+494+623=289+(87-48)=194×5=370×2+546=485×9-531=493-208-257=611+71×8=254+79×3=864+440-10=803-169-59=446-62-91=929-588+816=394-137+793=795-(123-81)=444-147-23=75×8=831×8-225=264+(256-254)=404-(46+240)=231-(21+72)=857+268+140=220+260=287×5=685+876=966-870+859=86×9=871-(718+52)=317×5=76×(225-222)=307+167=337×2=847-(586+240)=62×(416-407)=985-66+770=911×(440-436)=545+32-221=228+(483-250)=428×2-482=173×4=427-62×6=290×(501-497)=101+(404-245)=716+685=152+33=763+499-549=399-(191-190)=281+(495-443)=835-284-251=555-(10+395)=781-(257+42)=60+115×3=497-158-223=804-246=250×9-570=146×3+197=798-(681-557)=228-(217+11)=793-(300+303)=981-96-471=167×4+145=307-(162-18)=806+539+261=962-61-231=285+93×5=961+993=144×(212-206)=147×8-173=313+334=337-(66+248)=291×2=628-55×8=35+251+159=938-645+26=294+166-209=843×6-369=492-(593-340)=622-18+223=188+(437-369)=784-164×2=33×3+328=312-295=24×(350-342)=938-13×9=516-124=637-(545+60)=147×6-429=216+(488-475)=830+(671-622)=490×2-155=288×2+104=491-(67+221)=419-97+781=363+571+914=107+113=41+453×2=165×8-913=316×9-854=81×(194-187)=392+81-202=413-312-10=387-(273-91)=561-49×9=379+226-57=474-143=154×2=71+15-28=433-(202+61)=141-64=70×(54-46)=981-91×4=511×(482-479)=36×9=660-632+875=39+145+625=520+304=208-161=386+(882-25)=97+143=197×5=196+215-386=494-29×2=267+146-195=166+(218-41)=476-183-92=29+56×4=713×(786-777)=417+343-66=219×5=787-446-68=844-(835-374)=150+(234-183)=452-262+207=452-(166-129)=687-181-417=635+469=128×3=359×2+705=597+480-811=515-(101+161)=322-138=331+(475-86)=670+635+260=267×2=444-440+638=152×(437-431)=918-843=692×6-395=225×9=942+28×5=152×5+224=194-82-60=199×5-714=771-98-33=777-30×4=943-207×3=112+617+76=3/9-1/9=326-(153+60)=93+176+679=233+(865-341)=173+60×2=969-352-258=425-248-165=84×2=458-(61+22)=221-191+83=92+130-125=903-272+157=364+22-99=807-(507-163)=24×6+220=344×7=289-(434-380)=335×6=66×9-430=239×2-55=261-(561-539)=27×(469-463)=105×(346-341)=310-275=171+161×2=688×4=972-(291+447)=479×2-592=121×3+151=421-50-211=445+(303-45)=7/10-3/10=467-58=2/5-1/5=416-132=160+296=77×5=75+404=97×9+656=895-878=130+(351-59)=437+(918-126)=270+563-350=474+358+134=262+83+120=526-481=244+79=417-133×3=384-357+457=181-74+15=761-227×2=507-(356-193)=488×(774-767)=110-37-48=438-192=426-68=251×8-315=205-13×4=996-(692+286)=830+(981-596)=394+26-233=573-(458+100)=944-557=129×6+190=992+(181-105)=27×9=371-(312-276)=78×4-53=199+132=635-317=471-97+121=267+161-351=468-(248-37)=287-58-228=963-131×4=592+52×9=857+766-108=404-113×3=495-(100+11)=571×(136-128)=119-(402-345)=681+75×4=808-(568+130)=600×(708-705)=589-12×5=224+283×3=4/8-1/8=80+271=911-736+29=460-78×3=228×(537-529)=928+151-677=913+73×7=605-146-340=98+355=5/7+2/7=595+167+370=135×2=134×(137-132)=487×8-242=336×9-456=395×2+433=192×4=426+(462-189)=182+757+915=185+(444-340)=589×3=17+(575-315)=219+222=564+(563-374)=852-758+341=182+195=667+56×4=844-438=185×(50-47)=494-54×2=3/7-2/7=346+(457-333)=65+47×7=883-(735-600)=167-(25+140)=416-262-44=353-(105+177)=467-80-100=849×4=171×(148-140)=469-(916-586)=473-248+84=65×6-42=977-233=420-59=527-124+222=16×9-127=918+(944-887)=952-619+641=366×(414-409)=722-262×2=239-47×2=213-28+39=916+(793-61)=698-576+846=27×(106-103)=590+(988-931)=435-(75+130)=967-131=495×5-679=374-(56+122)=446×2-164=54×7+917=545+937-333=691-115-20=319-(356-248)=439-(82-56)=2/9+6/9=450+143=184+204=702+474+816=340+178+758=916-(716+123)=395-208+169=434+(918-618)=476-308-115=69×5-10=428+426+42=123-(184-164)=147×5-152=19+345+441=474-13×9=764×4-495=793-(137+143)=406-(24+127)=592-379+469=242-(50+180)=325-244+329=56×4-34=260+21×9=367+(452-419)=799+(677-610)=431-65-79=121×3+136=250-(22+170)=46×4=408×8-211=199+129-191=85×(131-123)=432+(887-758)=280+785-141=293×7-661=204-46×3=289×5=332-(111-110)=709×7=333-(31+131)=123-50+426=499+(405-261)=638-(421+199)=136-(103-67)=1/6+2/6=422-239-179=567+41-92=32+267-191=935-(381-270)=3/8-2/8=675-607+522=166-49-101=894+36+417=264+123+494=428×2-655=871×5=114-75+139=82+324+145=108×9-70=206+314=216+19×4=311-53-128=760+217=481-139=160-(227-184)=397×7-847=586×7-525=438-184-116=600+565=265+146-241=758+513+240=113×(104-99)=848-100×2=13×(782-775)=100+(167-117)=398-(182+38)=329+695+567=56×(155-152)=152-47=305-(264+11)=141+491=208×3=4/7-1/7=267+(181-152)=235×8=901-478-325=403+(647-266)=923-345=291×(23-20)=348-51-258=649×(188-184)=258+117-66=855+329=210-66+196=395-(201+115)=54×3+315=898-376×2=642-66×6=57×2-38=452+(893-828)=298-(207-139)=720-(880-861)=111×(149-145)=713-(632-546)=425×(78-75)=394-75=804+493×2=760-135×4=426-31×6=30×5+247=91×(499-490)=135×(270-265)=553+520-939=388×2+938=187-40=27+261×2=297-90=760-262=729+262-551=204-24-140=232-48+313=377-305+422=140×4=609+156×5=362+784+515=428+192+76=265+662-298=190-74=23+389+270=80×4+800=477-(209-19)=425×(164-157)=255+(873-723)=842+501+73=955-(547-358)=429-17+632=151×3=491-46-39=165-(452-443)=288-47=72+84×8=496-422=393-144-118=22×(111-107)=240+228=741-346-309=144+117-237=257+(451-380)=318-262+374=567+732+50=331-16-184=404+10+504=843-(767-236)=194+452=418-157+114=804+(795-612)=105+69+284=478-(865-778)=442-56×5=540-416=449-25×3=514×7-501=352-24=286+425-90=809-(80+432)=948-(997-178)=217+31×8=758×9=361-84-115=58×(317-310)=410-(250+24)=535+840=161+294=280+40+332=543×9-589=4/8+2/8=227×3=562+29+308=361-214+42=624-24×7=128+158=723+(835-752)=205+(305-157)=610+441+499=494+388-211=671+16+89=371-79=667+639+225=353+(736-518)=11×3=41×2=523-(380+29)=827+633=454×2=786+594+185=401+58-267=895×7-204=173-(853-754)=456-116=542+505+589=259+203=563-299-100=420+(449-251)=131×2-220=289+84-91=466-38×5=410-(57+159)=313+241+210=39+461+102=872-388-178=1/4+2/4=782-(333+436)=825-(119+121)=660-115×5=621+(541-470)=581-(55+104)=818-(626-101)=641-292=719+942+486=645-(16+505)=428-194-213=476+100=523-(353-246)=112×(332-326)=1/5+3/5=122×9-916=187×6-130=416-(16+326)=772×(319-313)=113+272=866+148×4=626×4-876=114+358+124=974×9=603-(716-461)=496-166+995=165-27-135=334×2+331=485-203=85+243=941-49-745=603+847=167+113+71=439-(268-17)=724×3=654×(517-508)=169+565=445-325-102=155×2=253+843=356-31×2=804-(623-114)=167×5=115+32-83=454-210+22=265-81×2=50×9-390=178-(130+35)=97×6+226=3/10-2/10=330+507+87=164×5+440=248-(309-241)=802-11×6=221-(331-207)=726+197+155=31×2+859=138+115=498-272-76=59+305-307=305-32×8=135×(212-206)=78+(279-210)=299×2-225=93+386-197=412+163+301=892+372-386=266×3-440=121-23×4=159×3-291=160+(981-109)=230×3-401=449+(200-172)=964-(92+837)=76×(381-376)=688+826-681=78+(444-440)=311-62-246=282-(42+107)=83×9-617=597-(93+117)=487-19×5=256-34×4=161+(296-231)=460+(985-642)=67+127=739-(698-547)=170-(109+43)=621+196+839=329×9=606-264×2=409-12×6=750-19×6=12×(436-433)=377-(428-226)=201×3-561=496-254+652=480-216×2=852+628+579=858-259-93=35+177=920+424-958=50×(41-32)=63+574+284=511+421-175=111+110+264=276×2+963=995-263=500-116×3=213-(927-855)=187+304×2=330-(350-271)=41×(462-458)=482-37×4=491-395=294+260=468+43×9=602-227-343=925-59-306=486+396+97=453-(97+63)=422-65×5=931-87=732×5=188+57-124=89×8-254=441-17×4=437-401=616-52+670=652+495=120×(95-90)=492-11=618-70-311=133+325+484=382+(324-169)=97+318=528+(182-144)=46×2=992×(255-250)=673-(329+100)=255×6-662=451+29×3=488-(15+79)=289×2+28=965-119×4=910-59×8=372-(78-31)=60+383-200=78+353-135=145×6=738-479=894+640+555=13+(367-266)=325-81×4=371-59-302=113×7=73+425=284-21+38=935-163×2=746-192×3=148-121+32=652-62+967=471-155×2=4/8-3/8=952-526-180=371×2-528=438×2+830=14×5=712+580-191=255-33+103=474+(458-348)=421-381=992+163×6=148+340-315=85+96×5=29×4=418+(52-51)=875-615-240=285-167-44=989-118-345=980×(461-454)=311+75=3/8+2/8=905-(366-44)=811+(930-458)=441-(797-406)=266-(217-28)=818-263×3=3/6-2/6=634-412-101=193+175-158=53×(454-451)=383-37×3=392-(388-345)=387-333+177=677+145-96=115-38+696=616-603+718=614-(385+118)=4/8+3/8=参考答案281-(432-195)=44266+789-569=486607-(418+150)=39185+622+839=1646701-695+550=556112-47+327=3922/7+3/7=5/7457-401+343=399475-414=61356×2-621=915/8+3/8=1174×5=870960-(174+201)=585391×6-676=1670595+21×8=763372-34=338812-497-291=24217+134=35120×5=100174+(307-306)=17580+166=24668×3+264=46859×(488-485)=177452+(339-230)=56123+793-732=84118×8=944655+158+135=948505+87+173=765299+65=364725-(469-39)=295617×(833-827)=3702382-80+150=452405-337-10=583/5-2/5=1/5520×(386-383)=1560635-81=554318×2=636607×3=1821306+45-156=195157+111=268724-585+216=355471×8-869=2899192+352+822=1366483-42=441178×7=1246744-56×6=408458-150-191=117793-550=243382×(661-655)=229265×(135-129)=390392-48=34441+(483-382)=142188×8-609=895389-30×8=149184-57=12780+(349-130)=29967×2+955=1089488×(433-428)=2440244-(206-97)=135876-(229+41)=606733-324=409229+208+707=1144276+276=5522/8+4/8=6/8107×9+54=1017251-130+202=323118+534=65257×4+157=385420-42=378451-210=241768-539=229329-(191+26)=112493-(25+53)=415330+32+964=1326716×(271-263)=5728932×8=7456633×(43-34)=5697687-313=374170×2-240=100283+126=409986+494=1480369×6-581=163386+229=315574+493-897=170728-349=379725+782+863=2370204×2=408830×9-898=657239+126-24=141123×3-307=62833+125-745=213350×(105-97)=2800262-79-15=168224-(134-128)=218102×(90-86)=408908+266-928=24669+425-239=255217+38=255425-(235-98)=288822×6-658=4274403-393+265=275169+288-53=404598-146+897=1349326-290=3675+177×3=606109×7=763122+141-136=127336-(113+151)=72367+47-227=187523-66×4=259896-(333+172)=391627-345+968=1250199-(20-18)=197351+(97-11)=43778×(213-207)=468178-111+40=107168-48+125=24560×2=12016×2+377=409551-(241-202)=512661-(101+507)=53242-203=39468+303=771264-58+236=4422/4-1/4=1/428+852-145=735237×8=1896772+524+246=1542372-41×7=852/6+3/6=5/6959-269=69099+228=327893-(951-864)=806554×(824-815)=4986737+616-24=1329149+320+77=54677+205=282662-473-128=61279-126+344=497220-(353-341)=208346-(790-674)=230127-20×3=67156×(196-191)=780369-29×3=282793-642+289=44027+494+623=1144289+(87-48)=328194×5=970370×2+546=1286485×9-531=3834493-208-257=28611+71×8=1179254+79×3=491864+440-10=1294803-169-59=575446-62-91=293929-588+816=1157394-137+793=1050795-(123-81)=753444-147-23=27475×8=600831×8-225=6423264+(256-254)=266404-(46+240)=118231-(21+72)=138857+268+140=1265220+260=480287×5=1435685+876=1561966-870+859=95586×9=774871-(718+52)=101317×5=158576×(225-222)=228307+167=474337×2=674847-(586+240)=2162×(416-407)=558985-66+770=1689911×(440-436)=3644545+32-221=356228+(483-250)=461428×2-482=374173×4=692427-62×6=55290×(501-497)=1160101+(404-245)=260716+685=1401152+33=185763+499-549=713399-(191-190)=398281+(495-443)=333835-284-251=300555-(10+395)=150781-(257+42)=48260+115×3=405497-158-223=116804-246=558250×9-570=1680146×3+197=635798-(681-557)=674228-(217+11)=0793-(300+303)=190981-96-471=414167×4+145=813307-(162-18)=163806+539+261=1606962-61-231=670285+93×5=750961+993=1954144×(212-206)=864147×8-173=1003313+334=647337-(66+248)=23291×2=582628-55×8=18835+251+159=445938-645+26=319294+166-209=251843×6-369=4689492-(593-340)=239622-18+223=827188+(437-369)=256784-164×2=45633×3+328=427312-295=1724×(350-342)=192938-13×9=821516-124=392637-(545+60)=32147×6-429=453216+(488-475)=229830+(671-622)=879490×2-155=825288×2+104=680491-(67+221)=203419-97+781=1103363+571+914=1848107+113=22041+453×2=947165×8-913=407316×9-854=199081×(194-187)=567392+81-202=271413-312-10=91387-(273-91)=205561-49×9=120379+226-57=548474-143=331154×2=30871+15-28=58433-(202+61)=170141-64=7770×(54-46)=560981-91×4=617511×(482-479)=153336×9=324660-632+875=90339+145+625=809520+304=824208-161=47386+(882-25)=124397+143=240197×5=985196+215-386=25494-29×2=436267+146-195=218166+(218-41)=343476-183-92=20129+56×4=253713×(786-777)=6417417+343-66=694219×5=1095787-446-68=273844-(835-374)=383150+(234-183)=201452-262+207=397452-(166-129)=415687-181-417=89635+469=1104128×3=384359×2+705=1423597+480-811=266515-(101+161)=253322-138=184331+(475-86)=720670+635+260=1565267×2=534444-440+638=642152×(437-431)=912918-843=75692×6-395=3757225×9=2025942+28×5=1082152×5+224=984194-82-60=52199×5-714=281771-98-33=640777-30×4=657943-207×3=322112+617+76=8053/9-1/9=2/9326-(153+60)=11393+176+679=948233+(865-341)=757173+60×2=293969-352-258=359425-248-165=1284×2=168458-(61+22)=375221-191+83=11392+130-125=97903-272+157=788364+22-99=287807-(507-163)=46324×6+220=364344×7=2408289-(434-380)=235335×6=201066×9-430=164239×2-55=423261-(561-539)=23927×(469-463)=162105×(346-341)=525310-275=35171+161×2=493688×4=2752972-(291+447)=234479×2-592=366121×3+151=514421-50-211=160445+(303-45)=7037/10-3/10=4/10467-58=4092/5-1/5=1/5416-132=284160+296=45677×5=38575+404=47997×9+656=1529895-878=17130+(351-59)=422437+(918-126)=1229270+563-350=483474+358+134=966262+83+120=465526-481=45244+79=323417-133×3=18384-357+457=484181-74+15=122761-227×2=307507-(356-193)=344488×(774-767)=3416110-37-48=25438-192=246426-68=358251×8-315=1693205-13×4=153996-(692+286)=18830+(981-596)=1215394+26-233=187573-(458+100)=15944-557=387129×6+190=964992+(181-105)=106827×9=243371-(312-276)=33578×4-53=259199+132=331635-317=318471-97+121=495267+161-351=77468-(248-37)=257287-58-228=1963-131×4=439592+52×9=1060857+766-108=1515404-113×3=65495-(100+11)=384571×(136-128)=4568119-(402-345)=62681+75×4=981808-(568+130)=110600×(708-705)=1800589-12×5=529224+283×3=10734/8-1/8=3/880+271=351911-736+29=204460-78×3=226228×(537-529)=1824928+151-677=402913+73×7=1424605-146-340=11998+355=4535/7+2/7=1595+167+370=1132135×2=270134×(137-132)=670487×8-242=3654336×9-456=2568395×2+433=1223192×4=768426+(462-189)=699182+757+915=1854185+(444-340)=289589×3=176717+(575-315)=277219+222=441564+(563-374)=753852-758+341=435182+195=377667+56×4=891844-438=406185×(50-47)=555494-54×2=3863/7-2/7=1/7346+(457-333)=47065+47×7=394883-(735-600)=748167-(25+140)=2416-262-44=110353-(105+177)=71467-80-100=287849×4=3396171×(148-140)=1368469-(916-586)=139473-248+84=30965×6-42=348977-233=744420-59=361527-124+222=62516×9-127=17918+(944-887)=975952-619+641=974366×(414-409)=1830722-262×2=198239-47×2=145213-28+39=224916+(793-61)=1648698-576+846=96827×(106-103)=81590+(988-931)=647435-(75+130)=230967-131=836495×5-679=1796374-(56+122)=196446×2-164=72854×7+917=1295545+937-333=1149691-115-20=556319-(356-248)=211439-(82-56)=4132/9+6/9=8/9450+143=593184+204=388702+474+816=1992340+178+758=1276916-(716+123)=77395-208+169=356434+(918-618)=734476-308-115=5369×5-10=335428+426+42=896123-(184-164)=103147×5-152=58319+345+441=805474-13×9=357764×4-495=2561793-(137+143)=513406-(24+127)=255592-379+469=682242-(50+180)=12325-244+329=41056×4-34=190260+21×9=449367+(452-419)=400799+(677-610)=866431-65-79=287121×3+136=499250-(22+170)=5846×4=184408×8-211=3053199+129-191=13785×(131-123)=680432+(887-758)=561280+785-141=924293×7-661=1390204-46×3=66289×5=1445332-(111-110)=331709×7=4963333-(31+131)=171123-50+426=499499+(405-261)=643638-(421+199)=18136-(103-67)=1001/6+2/6=3/6422-239-179=4567+41-92=51632+267-191=108935-(381-270)=8243/8-2/8=1/8675-607+522=590166-49-101=16894+36+417=1347264+123+494=881428×2-655=201871×5=4355114-75+139=17882+324+145=551108×9-70=902206+314=520216+19×4=292311-53-128=130760+217=977481-139=342160-(227-184)=117397×7-847=1932586×7-525=3577438-184-116=138600+565=1165265+146-241=170758+513+240=1511113×(104-99)=565848-100×2=64813×(782-775)=91100+(167-117)=150398-(182+38)=178329+695+567=159156×(155-152)=168152-47=105305-(264+11)=30141+491=632208×3=6244/7-1/7=3/7267+(181-152)=296235×8=1880901-478-325=98403+(647-266)=784923-345=578291×(23-20)=873348-51-258=39649×(188-184)=2596258+117-66=309855+329=1184210-66+196=340395-(201+115)=7954×3+315=477898-376×2=146642-66×6=24657×2-38=76452+(893-828)=517298-(207-139)=230720-(880-861)=701111×(149-145)=444713-(632-546)=627425×(78-75)=1275394-75=319804+493×2=1790760-135×4=220426-31×6=24030×5+247=39791×(499-490)=819135×(270-265)=675553+520-939=134388×2+938=1714187-40=14727+261×2=549297-90=207760-262=498729+262-551=440204-24-140=40232-48+313=497377-305+422=494140×4=560609+156×5=1389362+784+515=1661428+192+76=696265+662-298=629190-74=11623+389+270=68280×4+800=1120477-(209-19)=287425×(164-157)=2975255+(873-723)=405842+501+73=1416955-(547-358)=766429-17+632=1044151×3=453491-46-39=406165-(452-443)=156288-47=24172+84×8=744496-422=74393-144-118=13122×(111-107)=88240+228=468741-346-309=86144+117-237=24257+(451-380)=328318-262+374=430567+732+50=1349331-16-184=131404+10+504=918843-(767-236)=312194+452=646418-157+114=375804+(795-612)=987105+69+284=458478-(865-778)=391442-56×5=162540-416=124449-25×3=374514×7-501=3097352-24=328286+425-90=621809-(80+432)=297948-(997-178)=129217+31×8=465758×9=6822361-84-115=16258×(317-310)=406410-(250+24)=136535+840=1375161+294=455280+40+332=652543×9-589=42984/8+2/8=6/8227×3=681562+29+308=899361-214+42=189624-24×7=456128+158=286723+(835-752)=806205+(305-157)=353610+441+499=1550494+388-211=671671+16+89=776371-79=292667+639+225=1531353+(736-518)=57111×3=3341×2=82523-(380+29)=114827+633=1460454×2=908786+594+185=1565401+58-267=192895×7-204=6061173-(853-754)=74456-116=340542+505+589=1636259+203=462563-299-100=164420+(449-251)=618131×2-220=42289+84-91=282466-38×5=276410-(57+159)=194313+241+210=76439+461+102=602872-388-178=3061/4+2/4=3/4782-(333+436)=13825-(119+121)=585660-115×5=85621+(541-470)=692581-(55+104)=422818-(626-101)=293641-292=349719+942+486=2147645-(16+505)=124428-194-213=21476+100=576523-(353-246)=416112×(332-326)=6721/5+3/5=4/5122×9-916=182187×6-130=992416-(16+326)=74772×(319-313)=4632113+272=385866+148×4=1458626×4-876=1628114+358+124=596974×9=8766603-(716-461)=348496-166+995=1325165-27-135=3334×2+331=999485-203=28285+243=328941-49-745=147603+847=1450167+113+71=351439-(268-17)=188724×3=2172654×(517-508)=5886169+565=734445-325-102=18155×2=310253+843=1096356-31×2=294804-(623-114)=295167×5=835115+32-83=64454-210+22=266265-81×2=1