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228×2=129-(289-197)=932-148+256=511-419-67=799-(466+41)=816×(507-498)=288×7=326-153=788-94+479=646-45×3=100+134=510×7-23=870+426-226=300-142+296=86+400-444=869-288=149×5-171=22+65+28=403-151=781-(606-334)=4/10-1/10=918-157×5=492-159-18=457-84×2=322-(385-77)=58+155+720=232+176=214+879=629-(811-631)=567+190+11=941-122-800=341-52=371-(459-458)=980-119-551=495+392=453+83=401+98-285=46+231=586-74-48=566-(106+370)=552+887+905=275+170-236=544+770+257=398-301=383+24×3=216×3-437=458-275+313=41×2+265=119+13-96=875-(320+262)=356+25×8=55×5+396=266-18+243=2/10+3/10=425+(90-61)=642-268=625-431-191=229-213+314=755+268-382=549+(621-583)=57+332=365-48-169=425+(365-245)=500-93-115=154-(289-187)=260-179=268+471=680×5-631=282-102-45=475×8=147-15×8=156+462=262×3-339=410-48-147=844+916=371-234+271=709-556=975-46×2=390-74-156=523+246+73=77×9+300=237-32×2=104×4-37=92×2=329-(332-301)=239×7=742+92×8=914-56-671=442-(304-65)=187+36=81×(342-336)=399×2=350×6-737=463-(203+200)=259-208+196=128×2+53=898-418-43=49×9=299+(452-144)=150×2=448×8-81=53-(887-851)=515×5=253-(73+52)=520+762=941-(560-364)=731×7-884=56×(51-44)=180-(97+60)=173-(487-402)=26×(490-487)=468+(172-68)=258-11-43=417-150-91=31+(343-182)=713+18×7=162×3-59=288+112×2=423+33-295=375×2-350=235×(991-986)=385+994-64=4/8-1/8=5/8-1/8=232×2+484=402×3-641=767+49+126=220×3+149=148+93×9=4/8+3/8=609+909+523=250×6-132=673-429+506=357+(424-48)=284+475+67=131+76=791-(353+81)=441-(206+122)=597+(544-391)=3/4-1/4=760+(616-239)=470×2-611=283-177+20=531×5-587=796-(807-660)=342-(395-306)=736+121×6=208-(345-200)=142+174=114-101+386=572+501=303-(117-113)=337-(455-394)=498-113=115+144-126=125×9=992-(504+385)=61+222-148=146+(894-499)=639-362=562+109-228=388+(362-314)=377+959+222=455×9-777=119×4-338=348+70×8=152-40×2=325+106×5=413-279+227=815-550-112=212×4-552=169+317-15=389×3=36×6=455-332+186=560+176=313×(418-415)=597+285+525=345+251=111+305=457-30×8=69-(447-396)=135+85-166=985-796+636=2/7+3/7=205+75×2=102+(338-177)=844-99+303=813×(594-590)=113+728+62=500-89×4=136×2-96=422-71×4=185+95=457-45-107=922-500=140+325-87=270-(96+109)=813+(998-959)=62×8-248=153×2+116=425-95=1/8+2/8=159+259=861-377-209=283+(408-193)=37×(301-297)=764-167-160=398+801+154=247+(488-245)=652+23+570=100+170=7/10+2/10=141+670+810=221×3+113=286×5-995=273-110+182=2/6+3/6=231×2-425=928-614-177=488-297=173-96+168=801+(669-189)=485-40×2=161+11×7=881+710-134=371×4-216=909×(451-446)=198+272+89=229×(475-471)=417×6-481=135+143=47×2=990-(903-712)=418-(328+52)=224×2+936=168×(461-458)=164×4-512=508×6-624=109+29×4=77×8+282=454-220-173=932-(842-695)=855+751=31+11=480×2-140=719-151-168=511+(543-497)=235×(803-795)=837+428+788=437×2=868-115=286-122-22=128×5=815-10=133×7=141-79+768=13×(279-270)=402+467+561=586+586-257=126×8-765=282-(378-119)=366-251+165=224-114+934=49+163-127=191+297-348=319+507+14=344×2-453=304×(19-10)=698-107=830×4=306×2-280=965-778=447-(354-22)=981+972+572=950-(299+612)=466-159+11=455-60=761+599-450=228+59-273=92+196-84=549+(948-510)=72+(490-409)=170-(32+93)=76×7-224=178+85×4=489-385+471=468-58×3=412-(48+305)=864-229=438+270-656=212+(374-130)=126+59+527=488-47×8=425+(930-14)=931+995=1/8+6/8=171×3-313=503+91=358-128+160=233+260=15×3+114=871×9=74×4-83=164+118×7=923-201-351=922-(227-216)=334-66×5=845-518+957=955×(927-923)=4/7-2/7=361-12-87=363-188-47=485-54×3=15×(52-49)=23+470-425=808-(738-65)=661×(591-587)=822-32×8=59×2+289=89×2+495=42×5=920+(996-36)=39×3+306=448-117-113=316+142=311-176+655=815×3-268=438×(283-274)=465-254=659×(473-469)=90×(408-400)=43×(192-188)=63×(86-77)=59×4=79×(162-154)=616+251-705=375+720+666=354-(53+161)=389+(341-263)=673+346=150×6-21=546+595-867=239+144=500+329-733=271-173+302=365+88-132=97×4=459-271=135-43=430-111-10=310×(505-501)=70+(191-122)=457-(61+182)=557+188+251=688+(931-731)=382+(410-30)=97+313+50=496-428=490-(298+99)=150+307+13=314+133-386=467-276+140=980-612=229-(451-232)=97+16+287=977×7=760+284=338×2=810-134×3=459-23×4=197-172+324=323-78+817=59×(838-831)=441-80-60=776-45×4=107×(340-335)=141-33×3=798+(775-477)=837-(976-878)=82+425+239=562+551+161=777+15+15=663+737=255-143+270=160×4=867-(414+235)=5/8+2/8=1/7+4/7=800×5=172×5=147+20×3=627-(402-46)=132-115=719-52-49=24×2+247=605-309+536=49×7=919+428-332=250-20+58=263-63×2=311-(413-372)=959+(519-234)=336-270+268=334-(116+89)=604-560+105=434-72-116=725+(986-676)=218+(328-142)=678+539+846=542+195=444×2+583=855-(939-689)=673×3=762-81×3=194+54-129=78+(389-150)=30+(260-120)=193-32×6=790-(144+188)=209-156+432=206-46+277=470-112-142=748×8=376-16×2=252×(458-455)=211-119=325-(126+122)=750-(138+266)=115×6=344+173×3=378-(446-207)=70+303+52=578+124-597=804-47+793=234-69-81=70+244=630-86×6=159+137=738-(975-553)=166+252-230=715-(369+37)=782-159+518=427+918+916=185+627=756+(499-48)=435-69=943×(975-970)=207+(326-162)=735-662=683-102×4=582+451+240=64×3=175+996=69×3=249+123+68=193×(314-309)=348-54-27=134+190+26=73×9+815=414-(21+254)=474+56×2=313-28×5=293+490=405-36×6=457-39-46=673×6=99×7=216+(257-53)=144×(180-174)=81×8=848×(974-966)=27×(300-293)=227+(911-15)=408-266=230-172-12=35×(269-266)=222-140=11+124×4=335-(57+121)=634+561-926=571-(415+144)=371-212-23=968-409-78=498+330+29=235+(474-377)=25×(231-226)=50×9-408=638-(99+78)=933-198+125=923-(622+13)=148+136-71=313-208=145+286=867-(687-676)=207+(920-504)=473-126+47=718×7-474=325+348+298=834-213-597=470+286×2=430×8=487-209=462-66×3=8/10+2/10=748-315=400×8=646-273-353=484-(396-267)=139×(234-229)=770×6-537=472-(21+393)=346+383+38=341-78×2=580+148=262×2+17=547-463+953=476-(59+201)=484-172×2=128×(351-346)=471+(409-378)=2/8-1/8=688+26×7=256-44×4=480+16-244=481-103-356=250+236×2=344-107×2=218×3-382=879+144×3=324-(329-242)=410+87+267=462-124-93=832-(622-326)=46+205=374+441=776-(443+274)=512×3-237=832+450-749=697-(760-238)=708×(503-497)=118×6-567=378+385=798-233=97×3+793=911-(590+74)=441-38×9=336×2=84×(140-133)=393+97=783+856=330-(93+57)=328+(139-70)=45+186+74=284+33-297=474-(412-410)=190×3-167=473×2=329-24×2=60×5=860×(503-495)=544-(41+372)=413-191×2=920-401×2=42×7-15=695+527+968=181+115+278=690-(263+32)=273-(42+34)=596+865-728=119+984+979=379×2-257=79×2+826=933-153-53=132×2=21+(923-498)=405-334+217=122×5+336=125+159-131=810-(234+487)=748×3=429-(694-486)=341+94+274=80×2+224=818×(294-285)=510+735-289=481-50=822×8=962+484-490=286+119-31=73+321=576-52-74=785×3=627+160×4=385+(920-99)=34×(744-740)=567-109=114×6=190+(143-109)=299-33×3=301+97×2=3/5-1/5=402+94-491=35×(372-366)=851-223×3=678-(850-626)=863×2-27=8/10-1/10=517-179+71=913+903-851=478-38×6=390-52×3=783-774+761=333-(952-923)=104×6=412+78=54×(124-118)=859+211+769=237×2-388=482-(459-144)=87+339=657-23×9=463-(74+254)=273-(177+34)=468-(342-51)=172-(38+74)=893×(930-924)=4/5-1/5=66×8+394=237+159=678-124-536=853-(183+576)=777-491=390-118×3=112+168-57=491+(145-124)=466-408+407=262+21×9=905-34×2=437+127+273=627-527+481=22×4+82=756-(884-712)=101+73=537+69×3=449-184+73=145+193=106+(392-280)=219-(121-27)=411+194+107=163+896-587=197×6-932=201-(551-434)=62×4+125=651-139+167=620-396=432×8=970-310-523=159-58-67=229×4=740×6-312=556-(900-670)=316×(469-466)=335×2+223=449×2-712=262-100-18=260-152=457-(185+190)=145×(581-572)=723+242+908=642-216×2=576-(834-510)=779-(561-174)=375+(232-21)=770×(188-180)=3/8-1/8=494-219+73=376-54-318=481-48×9=199+87-266=219+235=253+213-368=436-411+299=222-24×3=181×4-616=626-134-377=496+107+759=896-667+242=171+(181-144)=319×2=471+495×2=326-206=132×(26-21)=359-152=340+325+59=283-(341-192)=209-(380-336)=655-(253+189)=877-(465+44)=541+(583-236)=386-71-284=837-619+122=989+228=122+541+235=169+46×9=1/5+3/5=455×(868-859)=689-(173+96)=36+(332-224)=760-89×4=494+(809-174)=835-632+955=198+234-90=467-13-96=114×8-778=269+59=512×5-258=313+126=59×2=5/7-1/7=493+(498-319)=59+(174-148)=77×8-347=336-(482-174)=493-445=361-(166-124)=104×4+428=113-83=908×(820-813)=465-403+73=702+761-295=428+(369-319)=182×2=489-14×3=455×9=748+(794-500)=241×4-266=462-227×2=385-(286+68)=492-420+775=258+439+98=212×2=715-670+196=571-452=699-47×4=626×7-668=288-206=837+934-259=512+(657-506)=463-(275+58)=716-49×7=262+849-164=51×(389-384)=781-241=949-538-284=175+923=429-331=403+996-186=82-38=610+108+113=294+66-39=722-(404-38)=57×6-28=221+109-203=738+497+582=797-179×4=110×8-576=897+800-273=100×(433-429)=433-355=50×5+978=111+(414-313)=729-(438+109)=38+91×4=462-10=449-402=167×4=278-(450-306)=179+238=6/8-2/8=470-(119+40)=151+114×5=422-(96+116)=147+334+65=833-191×2=244×6=1/6+5/6=328-243=115-32×3=170×4=516×(451-448)=272-(123+99)=763-(438+72)=112×2+18=803-488=474×(424-419)=210-10×2=476-270-133=64×7+812=427+(463-458)=436-49=316-(148-60)=35+(354-126)=428-(307-121)=56×(207-202)=383-323=735-404+71=331+411+244=412-(635-559)=933-214×2=295+92=414×3=445-(153+253)=725-140+722=752×5-899=285-(255+28)=266-(69+144)=750+169=244+169-129=487+168-119=309+(852-374)=458-336=325-(73+170)=493-(285+187)=110+(109-20)=742+914-932=122×(903-900)=365-(177+20)=385-95-148=273×2-316=722-16=956×(109-106)=41×9=957-187-493=291+73-156=474-(403-310)=737-56=428×4=660+91+223=857-746-101=286+252+143=192-134+400=23-(968-967)=246×(479-476)=64×4=516-55×7=318-(25+23)=324-62×3=386-360=675+816+870=483-67-416=90×5-42=98-(36-27)=911-127×3=409-300=495-(404-118)=447-223+118=621-13-344=239×(61-57)=263-11-27=166+52=413-(42+272)=497×(716-709)=279+392+297=参考答案228×2=456129-(289-197)=37932-148+256=1040511-419-67=25799-(466+41)=292816×(507-498)=7344288×7=2016326-153=173788-94+479=1173646-45×3=511100+134=234510×7-23=3547870+426-226=1070300-142+296=45486+400-444=42869-288=581149×5-171=57422+65+28=115403-151=252781-(606-334)=5094/10-1/10=3/10918-157×5=133492-159-18=315457-84×2=289322-(385-77)=1458+155+720=933232+176=408214+879=1093629-(811-631)=449567+190+11=768941-122-800=19341-52=289371-(459-458)=370980-119-551=310495+392=887453+83=536401+98-285=21446+231=277586-74-48=464566-(106+370)=90552+887+905=2344275+170-236=209544+770+257=1571398-301=97383+24×3=455216×3-437=211458-275+313=49641×2+265=347119+13-96=36875-(320+262)=293356+25×8=55655×5+396=671266-18+243=4912/10+3/10=5/10425+(90-61)=454642-268=374625-431-191=3229-213+314=330755+268-382=641549+(621-583)=58757+332=389365-48-169=148425+(365-245)=545500-93-115=292154-(289-187)=52260-179=81268+471=739680×5-631=2769282-102-45=135475×8=3800147-15×8=27156+462=618262×3-339=447410-48-147=215844+916=1760371-234+271=408709-556=153975-46×2=883390-74-156=160523+246+73=84277×9+300=993237-32×2=173104×4-37=37992×2=184329-(332-301)=298239×7=1673742+92×8=1478914-56-671=187442-(304-65)=203187+36=22381×(342-336)=486399×2=798350×6-737=1363463-(203+200)=60259-208+196=247128×2+53=309898-418-43=43749×9=441299+(452-144)=607150×2=300448×8-81=350353-(887-851)=17515×5=2575253-(73+52)=128520+762=1282941-(560-364)=745731×7-884=423356×(51-44)=392180-(97+60)=23173-(487-402)=8826×(490-487)=78468+(172-68)=572258-11-43=204417-150-91=17631+(343-182)=192713+18×7=839162×3-59=427288+112×2=512423+33-295=161375×2-350=400235×(991-986)=1175385+994-64=13154/8-1/8=3/85/8-1/8=4/8232×2+484=948402×3-641=565767+49+126=942220×3+149=809148+93×9=9854/8+3/8=7/8609+909+523=2041250×6-132=1368673-429+506=750357+(424-48)=733284+475+67=826131+76=207791-(353+81)=357441-(206+122)=113597+(544-391)=7503/4-1/4=2/4760+(616-239)=1137470×2-611=329283-177+20=126531×5-587=2068796-(807-660)=649342-(395-306)=253736+121×6=1462208-(345-200)=63142+174=316114-101+386=399572+501=1073303-(117-113)=299337-(455-394)=276498-113=385115+144-126=133125×9=1125992-(504+385)=10361+222-148=135146+(894-499)=541639-362=277562+109-228=443388+(362-314)=436377+959+222=1558455×9-777=3318119×4-338=138348+70×8=908152-40×2=72325+106×5=855413-279+227=361815-550-112=153212×4-552=296169+317-15=471389×3=116736×6=216455-332+186=309560+176=736313×(418-415)=939597+285+525=1407345+251=596111+305=416457-30×8=21769-(447-396)=18135+85-166=54985-796+636=8252/7+3/7=5/7205+75×2=355102+(338-177)=263844-99+303=1048813×(594-590)=3252113+728+62=903500-89×4=144136×2-96=176422-71×4=138185+95=280457-45-107=305922-500=422140+325-87=378270-(96+109)=65813+(998-959)=85262×8-248=248153×2+116=422425-95=3301/8+2/8=3/8159+259=418861-377-209=275283+(408-193)=49837×(301-297)=148764-167-160=437398+801+154=1353247+(488-245)=490652+23+570=1245100+170=2707/10+2/10=9/10141+670+810=1621221×3+113=776286×5-995=435273-110+182=3452/6+3/6=5/6231×2-425=37928-614-177=137488-297=191173-96+168=245801+(669-189)=1281485-40×2=405161+11×7=238881+710-134=1457371×4-216=1268909×(451-446)=4545198+272+89=559229×(475-471)=916417×6-481=2021135+143=27847×2=94990-(903-712)=799418-(328+52)=38224×2+936=1384168×(461-458)=504164×4-512=144508×6-624=2424109+29×4=22577×8+282=898454-220-173=61932-(842-695)=785855+751=160631+11=42480×2-140=820719-151-168=400511+(543-497)=557235×(803-795)=1880837+428+788=2053437×2=874868-115=753286-122-22=142128×5=640815-10=805133×7=931141-79+768=83013×(279-270)=117402+467+561=1430586+586-257=915126×8-765=243282-(378-119)=23366-251+165=280224-114+934=104449+163-127=85191+297-348=140319+507+14=840344×2-453=235304×(19-10)=2736698-107=591830×4=3320306×2-280=332965-778=187447-(354-22)=115981+972+572=2525950-(299+612)=39466-159+11=318455-60=395761+599-450=910228+59-273=1492+196-84=204549+(948-510)=98772+(490-409)=153170-(32+93)=4576×7-224=308178+85×4=518489-385+471=575468-58×3=294412-(48+305)=59864-229=635438+270-656=52212+(374-130)=456126+59+527=712488-47×8=112425+(930-14)=1341931+995=19261/8+6/8=7/8171×3-313=200503+91=594358-128+160=390233+260=49315×3+114=159871×9=783974×4-83=213164+118×7=990923-201-351=371922-(227-216)=911334-66×5=4845-518+957=1284955×(927-923)=38204/7-2/7=2/7361-12-87=262363-188-47=128485-54×3=32315×(52-49)=4523+470-425=68808-(738-65)=135661×(591-587)=2644822-32×8=56659×2+289=40789×2+495=67342×5=210920+(996-36)=188039×3+306=423448-117-113=218316+142=458311-176+655=790815×3-268=2177438×(283-274)=3942465-254=211659×(473-469)=263690×(408-400)=72043×(192-188)=17263×(86-77)=56759×4=23679×(162-154)=632616+251-705=162375+720+666=1761354-(53+161)=140389+(341-263)=467673+346=1019150×6-21=879546+595-867=274239+144=383500+329-733=96271-173+302=400365+88-132=32197×4=388459-271=188135-43=92430-111-10=309310×(505-501)=124070+(191-122)=139457-(61+182)=214557+188+251=996688+(931-731)=888382+(410-30)=76297+313+50=460496-428=68490-(298+99)=93150+307+13=470314+133-386=61467-276+140=331980-612=368229-(451-232)=1097+16+287=400977×7=6839760+284=1044338×2=676810-134×3=408459-23×4=367197-172+324=349323-78+817=106259×(838-831)=413441-80-60=301776-45×4=596107×(340-335)=535141-33×3=42798+(775-477)=1096837-(976-878)=73982+425+239=746562+551+161=1274777+15+15=807663+737=1400255-143+270=382160×4=640867-(414+235)=2185/8+2/8=7/81/7+4/7=5/7800×5=4000172×5=860147+20×3=207627-(402-46)=271132-115=17719-52-49=61824×2+247=295605-309+536=83249×7=343919+428-332=1015250-20+58=288263-63×2=137311-(413-372)=270959+(519-234)=1244336-270+268=334334-(116+89)=129604-560+105=149434-72-116=246725+(986-676)=1035218+(328-142)=404678+539+846=2063542+195=737444×2+583=1471855-(939-689)=605673×3=2019762-81×3=519194+54-129=11978+(389-150)=31730+(260-120)=170193-32×6=1790-(144+188)=458209-156+432=485206-46+277=437470-112-142=216748×8=5984376-16×2=344252×(458-455)=756211-119=92325-(126+122)=77750-(138+266)=346115×6=690344+173×3=863378-(446-207)=13970+303+52=425578+124-597=105804-47+793=1550234-69-81=8470+244=314630-86×6=114159+137=296738-(975-553)=316166+252-230=188715-(369+37)=309782-159+518=1141427+918+916=2261185+627=812756+(499-48)=1207435-69=366943×(975-970)=4715207+(326-162)=371735-662=73683-102×4=275582+451+240=127364×3=192175+996=117169×3=207249+123+68=440193×(314-309)=965348-54-27=267134+190+26=35073×9+815=1472414-(21+254)=139474+56×2=586313-28×5=173293+490=783405-36×6=189457-39-46=372673×6=403899×7=693216+(257-53)=420144×(180-174)=86481×8=648848×(974-966)=678427×(300-293)=189227+(911-15)=1123408-266=142230-172-12=4635×(269-266)=105222-140=8211+124×4=507335-(57+121)=157634+561-926=269571-(415+144)=12371-212-23=136968-409-78=481498+330+29=857235+(474-377)=33225×(231-226)=12550×9-408=42638-(99+78)=461933-198+125=860923-(622+13)=288148+136-71=213313-208=105145+286=431867-(687-676)=856207+(920-504)=623473-126+47=394718×7-474=4552325+348+298=971834-213-597=24470+286×2=1042430×8=3440487-209=278462-66×3=2648/10+2/10=1748-315=433400×8=3200646-273-353=20484-(396-267)=355139×(234-229)=695770×6-537=4083472-(21+393)=58346+383+38=767341-78×2=185580+148=728262×2+17=541547-463+953=1037476-(59+201)=216484-172×2=140128×(351-346)=640471+(409-378)=5022/8-1/8=1/8688+26×7=870256-44×4=80480+16-244=252481-103-356=22250+236×2=722344-107×2=130218×3-382=272879+144×3=1311324-(329-242)=237410+87+267=764462-124-93=245832-(622-326)=53646+205=251374+441=815776-(443+274)=59512×3-237=1299832+450-749=533697-(760-238)=175708×(503-497)=4248118×6-567=141378+385=763798-233=56597×3+793=1084911-(590+74)=247441-38×9=99336×2=67284×(140-133)=588393+97=490783+856=1639330-(93+57)=180328+(139-70)=39745+186+74=305284+33-297=20474-(412-410)=472190×3-167=403473×2=946329-24×2=28160×5=300860×(503-495)=6880544-(41+372)=131413-191×2=31920-401×2=11842×7-15=279695+527+968=2190181+115+278=574690-(263+32)=395273-(42+34)=197596+865-728=733119+984+979=2082379×2-257=50179×2+826=984933-153-53=727132×2=26421+(923-498)=446405-334+217=288122×5+336=946125+159-131=153810-(234+487)=89748×3=2244429-(694-486)=221341+94+274=70980×2+224=384818×(294-285)=7362510+735-289=956481-50=431822×8=6576962+484-490=956286+119-31=37473+321=394576-52-74=450785×3=2355627+160×4=1267385+(920-99)=120634×(744-740)=136567-109=458114×6=684190+(143-109)=224299-33×3=200301+97×2=4953/5-1/5=2/5402+94-491=535×(372-366)=210851-223×3=182678-(850-626)=454863×2-27=16998/10-1/10=7/10517-179+71=409913+903-851=965478-38×6=250390-52×3=234783-774+761=770333-(952-923)=304104×6=624412+78=49054×(124-118)=324859+211+769=1839237×2-388=86482-(459-144)=16787+339=426657-23×9=450463-(74+254)=135273-(177+34)=62468-(342-51)=177172-(38+74)=60893×(930-924)=53584/5-1/5=3/566×8+394=922237+159=396678-124-536=18853-(183+576)=94777-491=286390-118×3=36112+168-57=223491+(145-124)=512466-408+407=465262+21×9=451905-34×2=837437+127+273=837627-527+481=58122×4+82=170756-(884-712)=584101+73=174537+69×3=744449-184+73=338145+193=338106+(392-280)=218219-(121-27)=125411+194+107=712163+896-587=472197×6-932=250201-(551-434)=8462×4+125=373651-139+167=679620-396=224432×8=3456970-310-523=137159-58-67=34229×4=916740×6-312=4128556-(900-670)=326316×(469-466)=948335×2+223=893449×2-712=186262-100-18=144260-152=108457-(185+190)=82145×(581-572)=1305723+242+908=1873642-216×2=210576-(834-510)=252779-(561-174)=392375+(232-21)=586770×(188-180)=61603/8-1/8=2/8494-219+73=348376-54-318=4481-48×9=49199+87-266=20219+235=454253+213-368=98436-411+299=324222-24×3=150181×4-616=108626-134-377=115496+107+759=1362896-667+242=471171+(181-144)=208319×2=638471+495×2=1461326-206=120132×(26-21)=660359-152=207340+325+59=724283-(341-192)=134209-(380-336)=165655-(253+189)=213877-(465+44)=368541+(583-236)=888386-71-284=31837-619+122=340989+228=1217122+541+235=898169+46×9=5831/5+3/5=4/5455×(868-859)=4095689-(173+96)=42036+(332-224)=144760-