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816-(222+19)=467-165-67=345+78×7=112+215+542=903+994+201=961-(93+379)=829-41×6=159+249=978-733=206-28×7=897+686+427=141+523+34=81×6-202=448-185×2=61×3=250×3-744=941-(63+403)=2/8+4/8=330-(445-425)=503+146+207=236×(285-281)=301+39+442=83×7=847+484-956=289×(243-240)=134+(677-481)=107×5=406+313+170=148×8-832=430-295=912-(675+230)=158+(591-567)=845×9-558=644-18×8=300×9=659-262=429-77=265+173=982-281×2=891-(15+304)=985+625+512=116-105+65=802-214=404×2-94=188-20=877×(470-462)=555+347+54=5/8+3/8=229×3-441=442-13-42=298+321+758=122+63×6=269+(460-268)=400-(38-22)=95+68=98+357=515+278+674=78-(440-392)=959-(77+482)=477+356-108=322×(139-136)=647-(402+193)=311-102=955-190-186=285×(31-23)=313+19-187=67×3+225=299-(323-250)=1/4+2/4=508+278+761=517×(614-606)=484-148=51+309-115=597-241=836+661=844-348-368=914-71=444+(326-196)=442×5-905=157+175+553=774+(542-15)=158+314+909=139-139+262=797×7-162=521-(62+218)=957-160×2=385-232=56+27+213=934-696+794=130+174=488-(253-121)=916-626=265-(409-158)=292-58×2=102×(292-285)=359-28×8=292-181+42=221+(405-36)=209-83=961-411-98=111-10-51=85+310-139=95×(26-23)=432-12×7=971+37-737=408+375×2=224+223-87=254+22-250=129+130=803-201-213=348-(694-356)=579+(997-562)=206+183×2=498-(35+53)=285-12×5=999-(669+265)=834×4=423+811-661=310-(259-46)=667-218-83=94×3+586=802×(947-944)=487-205-38=727-91×2=629-128×3=875-(865-599)=851-287+731=445-(259-110)=712-420=313+396=227×4-160=92+353=197×4=476-(232+235)=386+292=54×7+298=451-(916-655)=565-199=527-507=220+51+149=897-631+278=123×(121-115)=279-(333-188)=275-57-131=53×2+201=251+91×6=829+284-268=716×2=166-130+213=371×2-204=573-32+856=301+11-160=167+381-126=781-(197+327)=16+148+643=416-360+675=653+(458-365)=561×2-863=115×(426-423)=735×3-991=83×5=378×4-86=402-(132+27)=39×9=376×6-989=557×(566-560)=491-33×8=413+(176-23)=590+22+386=40×(277-272)=192+530+117=722-80-609=889+(465-407)=514-(640-326)=582+(825-495)=953-669+315=104+93=43×(439-430)=88-39×2=4/8-2/8=420-(357-278)=32×(317-313)=868-65-148=214-(428-376)=279+80=333×3-786=966-322×2=252+137×2=939-894+971=381-131=559+77+83=127+12×2=409+(391-46)=295×(677-672)=200+292+121=778-325=716+682-512=358-34=454+156-582=302-(26+57)=64-28-34=291+472=420-(313-75)=213+255+440=321-141+137=2/8-1/8=456+538=439+(478-226)=522-79×2=325-261+220=473×5=417-186-117=61×3-100=868+933-314=433×2-595=3/5-2/5=401+401+33=476×7-784=828×3-357=499-220=347-216+69=405-32=153+864+126=52×8-374=570×2-897=261×3=253+25-38=132+231-46=485-26×8=178×(863-854)=209-(59-15)=613+205=336-119-201=75+200×3=466+474=488-321+173=365×(827-823)=434-235+214=422-(145-71)=445-(182+250)=133-(644-558)=303+(182-115)=772×5-839=302-232-16=84-52=122×3-304=958-93-531=332-208=891-36+521=794-691+832=92-21+388=446×2=48+107=227+(372-187)=942-428-267=807-26×4=131+250-17=5/8-2/8=398-58-312=345-132+157=900-89-563=593×(22-16)=147×3-289=911-(722-392)=902-587=435×2-82=293-99×2=286×6=42+240=143×5+630=806×(359-350)=257-173+35=671-(428+207)=407-205=200+124-99=173-56+102=508-392+739=669+47+647=60+490+382=2/8+3/8=48×9-309=167×(126-123)=113+(402-101)=4/5-1/5=511-(121-95)=377+792=283-(10+40)=379-124=128+(529-481)=16+70+341=559×4-678=25+229-184=557+424-211=570-63×2=304+208+89=4/7-1/7=168+676-633=511-46×3=171-35+26=843+(944-383)=380-(288-82)=516-(612-376)=866+(539-149)=557+53+133=10+480-422=994-(665+136)=694-21×3=701-192-392=378-73×4=180-18×2=296+146+25=488-249-154=233+203=433+354+484=150-36×4=202+189=1/5+3/5=520-(781-365)=316-173=331-(466-410)=368-154=224×5=531-79-90=501-(841-777)=23+172×4=426+72-331=165×6=984-833+41=875+(468-377)=316+307×2=413+308=208+186-41=242×2-36=938-(199+566)=408×(200-196)=311×3+11=974×7=356+(840-752)=120+103=204+118×5=462-(84+135)=86×4-136=237×(923-914)=995-764=84×7=481-100+92=136×4+245=283-141-136=161+273=731-(374+201)=150-30=237+(982-667)=588-(473-118)=692×6=436-60×7=193×2+274=755+661-79=31+(239-23)=6/10+3/10=833-(11+244)=155×4=812+351-827=377-77-145=164×6-951=822×5=492-61=623-51×4=10×(986-980)=729-91=892×3=203×3+195=485-296-109=418-154-262=357+44-253=533+306=30×6+661=284×2-331=201+46×5=773+(362-269)=449-(345-109)=772+903=242-(67+50)=643-(582-35)=75×7=934-105-588=902-872=921+656+979=350-26×8=640-174-16=573+505=345-182=591-82-124=750×6=133+261-348=497-220×2=552-457+405=832×7=35×(336-333)=130×(261-258)=371+(446-98)=581+343+262=798×(330-322)=83×3-12=128×4+185=114×(81-77)=780-(878-180)=696+(560-361)=813-(928-901)=477-49×7=729-471=210-152+59=111×(419-411)=177-(857-837)=498+160=452-78×4=20+(307-274)=220×2-393=726-390-240=688+576-954=381×2-629=67+134=398-52-332=382-368=164-72×2=269+277+64=465+(275-217)=666+135-25=979-(586-383)=15×3+330=404+112×3=985-15×8=74×3+31=96×9=278-86×2=385-29×9=654+813+218=219×3=329-23×5=629-(462+109)=778-(389+94)=449-159+71=4/7-2/7=86×(391-388)=998-718-154=43+92×4=1/10+3/10=852-169-671=523-492=371+209×4=344-95-184=424+239×2=242-(16+118)=411-393+205=632-(10+504)=350-(213+63)=722×5=269+170=480-44-141=931-14+975=400+(301-93)=423-397+303=148+144=179×2=60+(207-145)=118+302-310=134+55+387=348+(284-155)=678-97×2=385×2=107+601-42=691-475-132=490-417-27=410×2-532=273-(33+45)=116×(34-30)=412+411-307=541-51×8=355-92=381-165=29×3+946=981-31+784=304+142=455×2-523=275×3=723-219-38=391-16×8=886×2-491=90×9-699=140×7=857-147-36=391×2=42-(212-193)=531-390=830-618=715+120×4=378-189-127=484-170=259+176-215=204+398=417×2=833+199-137=622+(922-345)=62×4+653=943+(823-38)=850-(779-613)=75+(165-32)=146×4+333=668+790-667=147×6-740=701-69×8=76×6+903=87-(245-163)=57×(443-435)=863-(457-385)=419-(136+185)=244+197=672-(283-72)=903+133×4=249-38×6=754×(472-465)=41×6+48=385-(194+107)=152×5-346=331-(455-378)=463×2-230=311+(458-388)=363-11×8=776×4-764=421×2=337+30-23=480-(84+395)=275-76+53=220×(262-258)=481-(317+31)=64+(378-239)=699-394+611=359-229+100=454-57-362=918-265-292=424-398+15=271+348=971×(621-617)=422-191+178=413-113-63=461-278+199=681-312=639-(453+59)=350-14-267=107+133×3=184×5=462+501=306+269+280=86+(629-128)=680×(166-161)=296×3=107×2=160×4=159+893+633=37+163=479-17×8=359-(237+30)=377+142+236=322-13-60=445-(300+131)=285-66-169=67×(386-379)=479-367-104=940-136×5=5/10+3/10=61×(101-98)=943+575-630=2/6-1/6=568×5-201=525-(678-260)=458-(269+124)=111×8-193=245+(148-123)=194+354+163=887-262×2=667-201-265=147×(465-459)=777-627+206=640+539=906×6-214=183+151-167=474-(779-721)=496-(323-291)=108×6+508=667-(758-649)=92×6=408+(264-83)=171+162-20=621-222=199×5-650=497+32×9=286+621+20=189-77-52=198×8=393-(215+132)=144+(484-401)=988+749-86=297+157×3=425-231=294+(428-13)=481-105-245=406-90=567-93×2=758+231=190+(495-61)=194-(95+62)=857×3-792=625+(310-189)=111+82=486-174-284=902-(219+13)=475+96×3=385-40×4=54+231-60=540×9=125×(18-11)=3/5-1/5=911-(175-123)=790-139×3=202+172=374+(454-173)=712+836-298=37×6+455=895-628-172=402-(219-210)=167×4=198-22+72=242-158-34=504×(610-602)=213-203+359=860×2=688+42×4=336-(107+155)=825-378=471-173=134×(330-327)=571+62+364=434+213×2=360+102-54=165+(433-305)=878+(890-483)=129+305-121=604+257+12=845-444+195=11+365×2=932+314=465-107-268=428×2+196=690-519+131=23×5=747-67×8=76+125=106+66+382=222+145=808-57×6=715-446+167=129-(290-239)=764-205+659=98×(280-276)=438-(297-226)=339-(217+35)=658+(772-706)=4/8-1/8=439-(325-92)=816×(161-153)=847×4=30×3+505=4/8+3/8=444+(493-362)=556×(354-351)=926+661+531=915-(175+274)=3/4-1/4=293×(230-225)=272×2+54=297-(393-219)=745+203=853×5=52×8-32=798+192×4=551-(788-493)=965-860=176+118=175+268+243=490×9=454×2-302=400-26×9=519+568+827=389+(424-30)=986-(477+239)=421-(318+33)=150+348=186×4=671×(377-372)=503+870=913+260×3=481+734-970=1/7+2/7=800+871+76=938-(356+549)=306+242+389=139×9=361-(75+200)=179-57+332=34×4=663×3-517=5/9+2/9=616-487=695-359=483-155×2=696-(647-607)=101×9=342×2+85=181×4=316-(372-64)=272×3-776=168+205-166=268-210+397=921-720-144=731+571+631=326-54-165=337×(238-229)=868+(527-27)=82+(329-303)=12+486-349=259-12×2=56+608-248=296+199=179×9=78+173×3=209×(457-454)=301+873+703=861-666-66=3/7+2/7=133×5+211=266+357+86=222×(413-409)=156+314-214=164+377+142=399-44×5=117-87+36=359+159×3=449-(252+188)=682+821+771=277+165-137=26+423-388=476-(947-606)=913×(331-325)=355-65=186+62=394+638+704=93×8=11×(385-376)=165+(280-196)=87×3-232=73+210-156=465×7=916-(344+163)=418+346+121=273+546+164=101-16×2=102+394=108×6-573=260×2+178=24+666-106=108×8-393=942+25×7=127+(409-39)=206×4+116=804-33+892=863×(302-297)=310×(413-404)=500-58+48=61+270=134+52=210+39=41×(133-129)=747+487=580×6-972=667+308=151-57=401-(21+274)=160+301=13+(189-152)=547×4-847=431-(80+28)=343-20=86-83+424=54×8=813-(486-389)=168+(366-20)=849-(510+149)=3/6-2/6=138+67=608+(889-475)=998-484×2=360+692-246=957-88=142-(26+92)=107×(427-419)=60+512+193=903-18×3=165+467=256×5-978=663-530+71=807-213+608=648-(530+22)=947+508-873=66×3+385=491-(542-91)=315-235=347-259+275=261-(156-56)=158-(360-320)=79-(55-15)=319×3=33×3=85-19=998-902=221+(801-237)=240×3-23=222+47+299=521+585+929=256×(200-193)=88×(280-272)=400-(345+38)=321-19×8=654-273+435=619-(99+281)=795-31+70=80×8=204-123+361=160+(319-298)=71+(401-252)=895×9-808=372-71×5=93-60+209=112×(515-510)=144+119-26=582+625-937=351-70=924-14-50=489-(217+218)=825-(682-612)=72+320=226×4=922-(547+31)=19×9+195=367-(249+30)=877-39×2=231×(493-489)=313-52-79=350+758-431=421-149+28=663×3-177=240-213=169-(417-296)=94×9+409=925+(921-520)=573-(353+63)=参考答案816-(222+19)=575467-165-67=235345+78×7=891112+215+542=869903+994+201=2098961-(93+379)=489829-41×6=583159+249=408978-733=245206-28×7=10897+686+427=2010141+523+34=69881×6-202=284448-185×2=7861×3=183250×3-744=6941-(63+403)=4752/8+4/8=6/8330-(445-425)=310503+146+207=856236×(285-281)=944301+39+442=78283×7=581847+484-956=375289×(243-240)=867134+(677-481)=330107×5=535406+313+170=889148×8-832=352430-295=135912-(675+230)=7158+(591-567)=182845×9-558=7047644-18×8=500300×9=2700659-262=397429-77=352265+173=438982-281×2=420891-(15+304)=572985+625+512=2122116-105+65=76802-214=588404×2-94=714188-20=168877×(470-462)=7016555+347+54=9565/8+3/8=1229×3-441=246442-13-42=387298+321+758=1377122+63×6=500269+(460-268)=461400-(38-22)=38495+68=16398+357=455515+278+674=146778-(440-392)=30959-(77+482)=400477+356-108=725322×(139-136)=966647-(402+193)=52311-102=209955-190-186=579285×(31-23)=2280313+19-187=14567×3+225=426299-(323-250)=2261/4+2/4=3/4508+278+761=1547517×(614-606)=4136484-148=33651+309-115=245597-241=356836+661=1497844-348-368=128914-71=843444+(326-196)=574442×5-905=1305157+175+553=885774+(542-15)=1301158+314+909=1381139-139+262=262797×7-162=5417521-(62+218)=241957-160×2=637385-232=15356+27+213=296934-696+794=1032130+174=304488-(253-121)=356916-626=290265-(409-158)=14292-58×2=176102×(292-285)=714359-28×8=135292-181+42=153221+(405-36)=590209-83=126961-411-98=452111-10-51=5085+310-139=25695×(26-23)=285432-12×7=348971+37-737=271408+375×2=1158224+223-87=360254+22-250=26129+130=259803-201-213=389348-(694-356)=10579+(997-562)=1014206+183×2=572498-(35+53)=410285-12×5=225999-(669+265)=65834×4=3336423+811-661=573310-(259-46)=97667-218-83=36694×3+586=868802×(947-944)=2406487-205-38=244727-91×2=545629-128×3=245875-(865-599)=609851-287+731=1295445-(259-110)=296712-420=292313+396=709227×4-160=74892+353=445197×4=788476-(232+235)=9386+292=67854×7+298=676451-(916-655)=190565-199=366527-507=20220+51+149=420897-631+278=544123×(121-115)=738279-(333-188)=134275-57-131=8753×2+201=307251+91×6=797829+284-268=845716×2=1432166-130+213=249371×2-204=538573-32+856=1397301+11-160=152167+381-126=422781-(197+327)=25716+148+643=807416-360+675=731653+(458-365)=746561×2-863=259115×(426-423)=345735×3-991=121483×5=415378×4-86=1426402-(132+27)=24339×9=351376×6-989=1267557×(566-560)=3342491-33×8=227413+(176-23)=566590+22+386=99840×(277-272)=200192+530+117=839722-80-609=33889+(465-407)=947514-(640-326)=200582+(825-495)=912953-669+315=599104+93=19743×(439-430)=38788-39×2=104/8-2/8=2/8420-(357-278)=34132×(317-313)=128868-65-148=655214-(428-376)=162279+80=359333×3-786=213966-322×2=322252+137×2=526939-894+971=1016381-131=250559+77+83=719127+12×2=151409+(391-46)=754295×(677-672)=1475200+292+121=613778-325=453716+682-512=886358-34=324454+156-582=28302-(26+57)=21964-28-34=2291+472=763420-(313-75)=182213+255+440=908321-141+137=3172/8-1/8=1/8456+538=994439+(478-226)=691522-79×2=364325-261+220=284473×5=2365417-186-117=11461×3-100=83868+933-314=1487433×2-595=2713/5-2/5=1/5401+401+33=835476×7-784=2548828×3-357=2127499-220=279347-216+69=200405-32=373153+864+126=114352×8-374=42570×2-897=243261×3=783253+25-38=240132+231-46=317485-26×8=277178×(863-854)=1602209-(59-15)=165613+205=818336-119-201=1675+200×3=675466+474=940488-321+173=340365×(827-823)=1460434-235+214=413422-(145-71)=348445-(182+250)=13133-(644-558)=47303+(182-115)=370772×5-839=3021302-232-16=5484-52=32122×3-304=62958-93-531=334332-208=124891-36+521=1376794-691+832=93592-21+388=459446×2=89248+107=155227+(372-187)=412942-428-267=247807-26×4=703131+250-17=3645/8-2/8=3/8398-58-312=28345-132+157=370900-89-563=248593×(22-16)=3558147×3-289=152911-(722-392)=581902-587=315435×2-82=788293-99×2=95286×6=171642+240=282143×5+630=1345806×(359-350)=7254257-173+35=119671-(428+207)=36407-205=202200+124-99=225173-56+102=219508-392+739=855669+47+647=136360+490+382=9322/8+3/8=5/848×9-309=123167×(126-123)=501113+(402-101)=4144/5-1/5=3/5511-(121-95)=485377+792=1169283-(10+40)=233379-124=255128+(529-481)=17616+70+341=427559×4-678=155825+229-184=70557+424-211=770570-63×2=444304+208+89=6014/7-1/7=3/7168+676-633=211511-46×3=373171-35+26=162843+(944-383)=1404380-(288-82)=174516-(612-376)=280866+(539-149)=1256557+53+133=74310+480-422=68994-(665+136)=193694-21×3=631701-192-392=117378-73×4=86180-18×2=144296+146+25=467488-249-154=85233+203=436433+354+484=1271150-36×4=6202+189=3911/5+3/5=4/5520-(781-365)=104316-173=143331-(466-410)=275368-154=214224×5=1120531-79-90=362501-(841-777)=43723+172×4=711426+72-331=167165×6=990984-833+41=192875+(468-377)=966316+307×2=930413+308=721208+186-41=353242×2-36=448938-(199+566)=173408×(200-196)=1632311×3+11=944974×7=6818356+(840-752)=444120+103=223204+118×5=794462-(84+135)=24386×4-136=208237×(923-914)=2133995-764=23184×7=588481-100+92=473136×4+245=789283-141-136=6161+273=434731-(374+201)=156150-30=120237+(982-667)=552588-(473-118)=233692×6=4152436-60×7=16193×2+274=660755+661-79=133731+(239-23)=2476/10+3/10=9/10833-(11+244)=578155×4=620812+351-827=336377-77-145=155164×6-951=33822×5=4110492-61=431623-51×4=41910×(986-980)=60729-91=638892×3=2676203×3+195=804485-296-109=80418-154-262=2357+44-253=148533+306=83930×6+661=841284×2-331=237201+46×5=431773+(362-269)=866449-(345-109)=213772+903=1675242-(67+50)=125643-(582-35)=9675×7=525934-105-588=241902-872=30921+656+979=2556350-26×8=142640-174-16=450573+505=1078345-182=163591-82-124=385750×6=4500133+261-348=46497-220×2=57552-457+405=500832×7=582435×(336-333)=105130×(261-258)=390371+(446-98)=719581+343+262=1186798×(330-322)=638483×3-12=237128×4+185=697114×(81-77)=456780-(878-180)=82696+(560-361)=895813-(928-901)=786477-49×7=134729-471=258210-152+59=117111×(419-411)=888177-(857-837)=157498+160=658452-78×4=14020+(307-274)=53220×2-393=47726-390-240=96688+576-954=310381×2-629=13367+134=201398-52-332=14382-368=14164-72×2=20269+277+64=610465+(275-217)=523666+135-25=776979-(586-383)=77615×3+330=375404+112×3=740985-15×8=86574×3+31=25396×9=864278-86×2=106385-29×9=124654+813+218=1685219×3=657329-23×5=214629-(462+109)=58778-(389+94)=295449-159+71=3614/7-2/7=2/786×(391-388)=258998-718-154=12643+92×4=4111/10+3/10=4/10852-169-671=12523-492=31371+209×4=1207344-95-184=65424+239×2=902242-(16+118)=108411-393+205=223632-(10+504)=118350-(213+63)=74722×5=3610269+170=439480-44-141=295931-14+975=1892400+(301-93)=608423-397+303=329148+144=292179×2=35860+(207-145)=122118+302-310=110134+55+387=576348+(284-155)=477678-97×2=484385×2=770107+601-42=666691-475-132=84490-417-27=46410×2-532=288273-(33+45)=195116×(34-30)=464412+411-307=516541-51×8=133355-92=263381-165=21629×3+946=1033981-31+784=1734304+142=446455×2-523=387275×3=825723-219-38=466391-16×8=263886×2-491=128190×9-699=111140×7=980857-147-36=674391×2=78242-(212-193)=23531-390=141830-618=212715+120×4=1195378-189-127=62484-170=314259+176-215=220204+398=602417×2=834833+199-137=895622+(922-345)=119962×4+653=901943+(823-38)=1728850-(779-613)=68475+(165-32)=208146×4+333=917668+790-667=791147×6-740=142701-69×8=14976×6+903=135987-(245-163)=557×(443-435)=456863-(457-385)=791419-(136+185)=98244+197=441672-(283-72)=461903+133×4=1435249-38×6=21754×(472-465)=527841×6+48=294385-(194+107)=84152×5-346=414331-(455-378)=254463×2-230=696311+(458-388)=381363-11×8=275776×4-764=2340421×2=842337+30-23=344480-(84+395)=1275-76+53=252220×(262-258)=880481-(317+31)=13364+(378-239)=203699-394+611=916359-229+100=230454-57-362=35918-265-292=361424-398+15=41271+348=619971×(621-617)=3884422-191+178=409413-113-63=237461-278+199=382681-312=369639-(453+59)=127350-14-267=69107+133×3=506184×5=920462+501=963306+269+280=85586+(629-128)=587680×(166-161)=3400296×3=888107×2=214160×4=640159+893+633=168537+163=200479-17×8=343359-(237+30)=92377+142+236=755322-13-60=249445-(300+131)=14285-66-169=5067×(386-379)=469479-367-104=8940-136×5=2605/10+3/10=8/1061×(101-98)=183943+575-630=8882/6-1/6=1/6568×5-201=2639525-(678-260)=107458-(269+124)=65111×8-193=695245+(148-123)=270194+354+163=711887-262×2=363667-201-265=201147×(465-459)=882777-627+206=356640+539=1179906×6-214=5222183+151-167=167474-(779-721)=416496-(323-291)=464108×6+508=1156667-(758-649)=55892×6=552408+(264-83)=589171+162-20=313621-222=399199×5-650=345497+32×9=785286+621+20=927189-77-52=60198×8=1584393-(215+132)=46144+(484-401)=227988+749-86=1651297+157×3=768425-231=194294+(428-13)=709481-105-245=131406-90=316567-93×2=381758+231=989190+(495-61)=624194-(95+62)=37857×3-792=1779625+(310-189)=746111+82=193486-174-284=28902-(219+13)=670475+96×3=763385-40×4=22554+231-60=225540×9=4860125×(18-11)=8753/5-1/5=2/5911-(175-123)=859790-139×3=373202+172=374374+(454-173)=655712+836-298=125037×6+455=677895-628-172=95402-(219-210)=393167×4=668198-22+72=248242-158-34=50504×(610-602)=4032213-203+359=369860×2=1720688+42×4=856336-(107+155)=74825-378=447471-173=298134×(330-327)=402571+62+364=997434+213×2=860360+102-54=408165+(433-305)=293878+(890-483)=1285129+305-121=313604+257+12=873845-444+195=59611+365×2=741932+314=1246465-107-268=90428×2+196=1052690-519+131=30223×5=115747-67×8=21176+125=201106+66+382=554222+145=367808-57×6=466715-446+167=436129-(290-239)=78764-205+659=121898×(280-276)=392438-(297-226)=367339-(217+35)=87658+(772-706)=7244/8-1/8=3/8439-(325-92)=206816×(161-153)=6528847×4=338830×3+505=5954/8+3/8=7/8444+(493-362)=575556×(354-351)=1668926+661+531=2118915-(175+274)=4663/4-1/4=2/4293×(230-225)=1465272×2+54=598297-(393-219)=123745+203=948853×5=426552×8-32=384798+192×4=1566551-(788-493)=256965-860=105176+118=294175+268+243=686490×9=4410454×2-302=606400-26×9=166519+568+827=1914389+(424-30)=783986-(477+239)=270421-(318+33)=70150+348=498186×4=744671×(377-372)=3355503+870=1373913+260×3=1693481+734-970=2451/7+2/7=3/7800+871+76=1747938-(356+549)=33306+242+389=937139×9=1251361-(75+200)=86179-57+332=45434×4=136663×3-517=1472