三年級數(shù)學(上)計算題專項練習附答案集錦

三年級數(shù)學(上)計算題專項練習附答案集錦288-229=91×(274-266)=529+884=162-(239-212)=105+28=320-75-106=177+(997-759)=129+(199-53)=260-(317-136)=997-186×2=242×(96-93)=300+(272-39)=256×(451-448)=951+945=315+135=382×2+161=95×7=178-45+24=40×9=423-276-141=538-96×2=426+(256-73)=1/6+2/6=984+296-347=28+275-65=649-326=402-212=37+29+427=497-168+66=451-312+183=449×(994-991)=347×5-712=399-(79-39)=93×8+174=719-(757-287)=713+516=72+(944-406)=53×5=335+149-196=249+410-461=356+(283-269)=746-(348+110)=655-227=228-23×4=424-64×4=892×8-442=688+220+953=386+108×2=29-13+333=94+820+489=591-(534+56)=498-139-245=106×9=402×(746-737)=780-(158+174)=563-75×5=337×2-216=591-(686-291)=4/5-1/5=283+98+55=533-24×7=125+656+119=300-(824-550)=38+459-406=708+256×2=882×2=82+354-276=141+24=446×7-74=677-282=953×9=232+118=115+175=2/5+3/5=491-29=470-198+151=70+548+671=93+(124-83)=879-558+56=140×7+348=299×2=292×2-217=185-(310-222)=527×3=143+(813-504)=161+110×4=444×2+277=825-434-318=627-74×5=422-(445-429)=344+(487-126)=18×5=52+850+938=449-248-85=991×(298-289)=79+523+60=179-(409-391)=5/9+3/9=609-(401+96)=884-(280-255)=407×2-130=90×(77-73)=171-73-81=358×2-446=901-678+613=63×2+371=677+(406-17)=733×8-300=347-271=590×(34-30)=411-(199+165)=871-513=330-50=506-(802-647)=525-99-80=412-388+69=448-(281-31)=824+37×2=835-(468-327)=899-237-380=359×2-631=596-113+68=176×(109-105)=288+666=383+(587-368)=219-(184-91)=368-(426-347)=379-(470-435)=394-16×7=442+48+346=499-326-12=460-189-254=377-110×3=262×3-70=905+127+68=397-(225+97)=850+894-653=575+421=719-103+557=969×5=294×(302-299)=90+392-430=429-(247-11)=121+73×5=776×7-516=508×5=533-(129+402)=672+(683-680)=86×6=359+38-295=198-(32+97)=713-(750-462)=2/8-1/8=976-498+498=495-(71+179)=657-123×5=973-220-482=718-10×9=91×(23-16)=86+123-104=538+250+159=852-(478-350)=1/5+2/5=146+79-183=860+60×7=151+172-283=912+666-236=488×9=345+419=855-(36+319)=125×2=173×(262-257)=755-542=920-(259+71)=827-679+873=876+591=458-64×6=174×4=352-215-98=257×2=371-260=659+603=157-(448-319)=260+164-279=2/7+3/7=488-(83+171)=540×6=307+108=114×8-588=40×9-128=17×5+41=318×2+871=896+(407-288)=247-105×2=267-65=428-94-71=1/5+3/5=308×3-89=779-124=66×(291-282)=270×(217-209)=631×2-638=323+79=485×5-63=312+(451-85)=133×6-72=428-343-29=348-83=117×(363-360)=729+(770-583)=864+608+59=514-104-167=271×3-317=516-464+749=73+366=447-(328+12)=827-(309+412)=421+164=493+33×4=620+863-343=92+236+406=4/10+2/10=23+427+193=77×3+266=472-136-173=363+510-59=145+49-39=101-13×5=204+457+307=468-86=96×3+334=802×5-488=229+(412-362)=395-51×6=936×4=377+613=3/6-2/6=715×3=350+800-903=122+(399-182)=951+96×2=315+160=386-(439-90)=388-155+193=87+320-161=562+759=221×2=467+176=472+(318-130)=674-194-232=233+(946-207)=849-(472+55)=522×2=168×(488-481)=76×9+13=262+716+677=241+480=37+(269-93)=184×5=39×5=258×(109-106)=195+26×3=992-10×5=317-(232-63)=441×6-904=503+103+277=772×7=28+415×2=152×6-138=929+15×4=895-127-103=330-171-34=264-73=966-129-14=103×3+543=652+888+950=36×8+144=303+743+141=51×(483-474)=784-108=823-634=98×4=77+318×3=379-42×6=721-(268+274)=180-39×2=362+184=293-14=570+341=489×3=938+897=125+298×2=147+(265-59)=100+394+489=299-58+968=171×9-287=595-300+806=159-(70+15)=465-(191+115)=489-34×4=18+610-438=107+595=824×(369-361)=222×6-257=612-228+733=657×2=753-(593-489)=416+377+89=432-180=11+46=386-(426-399)=11×(245-241)=202-176+846=13×9+146=893-95×8=225×3=57-38+154=230+214+473=491-389-46=641+230=339-207+164=47×(139-131)=497+(803-506)=446-113×2=275-(743-679)=977-71=791×(250-244)=371-(232-150)=951×(737-729)=294+648+589=592-170+349=351+926-713=374+524+98=66+(119-79)=297+215+62=29×(304-297)=732-686=87×(367-359)=1/7+3/7=371-154×2=777+324+805=578×7-38=44×(189-185)=41+445-387=135×6-677=763-172×3=762+(907-842)=312×(949-942)=554-209-54=499×4-656=458×4-188=25×(163-160)=201-182+442=439-339+131=411-133=14+13=325+112=81×9+130=734-183+339=131×3=411-(25+258)=929-115×3=401+(329-299)=683+823-708=732+843-758=845-703=59×(472-469)=291-(176+11)=188×4-577=137-53-64=462-(895-658)=446-283=334-41+14=435-336+333=141×7-456=706-(528+105)=201+130=54+315×3=333-(101-37)=195+99=132+17+624=257×2+408=470-316-31=374-(168-46)=664-88×6=183-160=326×(727-721)=922-546-215=838-291×2=387-24×2=455×(581-577)=441+290+53=188+257-323=487-473+363=511-87×5=437-315+38=240×2+444=94×(127-120)=854-416-61=133×8-948=453-370+286=60+(778-161)=157+805-846=76×(288-284)=868×7=441-16×6=495×5=451-76-251=782+639-52=959-(406+369)=645-(415-356)=499-33×7=886+(995-132)=13×(73-64)=328×3=7/10-1/10=458-(10+381)=69×9=909-(993-767)=705-(175-103)=971+(644-520)=801-(435+170)=85+176=637-(717-470)=306+(410-46)=118×(61-53)=66+187-117=103-81+311=825-(461+221)=2/5-1/5=458-(424-194)=627+(264-186)=484-(53+254)=831+(918-717)=448+244+196=355+151+700=891×(165-158)=792-114-539=371-135+16=237+(104-101)=413-370=400+324=419-46×8=51+276+420=409-119-166=243+52=190-(396-257)=254×3+491=72×9-490=455-147-195=35+181+519=389+134+292=20×7=546-17-489=93×(429-422)=394-312=188×4=417-78×2=211-33=929+99×9=579-101-224=153×(137-133)=95×(93-86)=276-10+186=776-432=225-81=261×5=3/4-1/4=320-68×2=959-85+638=686+967-939=469+607+685=827-160+161=898-86-674=20+(429-298)=110×5=183+(443-351)=756-647+902=278×2-14=607×(665-658)=231-158=813-(897-572)=179×6-811=43×(241-232)=712-416=675+798-472=490+399=197+438+79=729×7-926=947+(998-276)=214-(445-374)=157×6-72=432-11=116×9=301+263×2=780-(161+138)=978×6=89×2+746=421-275=653-(832-765)=472-413=760-(710-566)=747-30=157-15-18=342×4-287=631×5-616=449-121=262-174=105+177+68=947+928-877=70×9-580=119+87=332+76-375=243-131=420-(185+148)=105×2-21=353+24×3=19+103×4=879+165+146=795×8-122=161+222-12=949-433×2=120×7=310-(493-346)=312+404+67=431+32-69=450-416+225=38+378-212=405+51×5=376-103-217=350+138×3=797-(23+176)=217+304×2=380-261-42=854-233-406=315+183-196=332-164-88=276-(758-605)=435-76=2/4-1/4=486-340-49=498-16×5=38+(424-417)=743-(133+554)=360-325=127×3-352=844×(527-523)=469+245=984-227-701=581-63×4=230+(203-147)=269+(417-77)=210×4-698=4/7-2/7=151+355+75=440+769-707=374-65-149=366-21×3=26+183-171=14×8=16×9+500=162×(63-57)=911-(610+288)=424-(391-73)=277+(319-279)=52-24=2/6+3/6=363+(994-517)=78+327-256=635+509-618=118-(25+17)=952-745+702=573×7=40+117-103=475-(400-86)=769-(116-26)=449-(45+163)=173-94=528-48-102=385-(176-18)=520×8=425×2-627=318+45-51=392-(307+30)=282-21×4=971+65-556=226+134=1/4+2/4=425-293=257+967+953=832+(763-312)=236-(101+119)=21×6=291×3-276=460-40-184=169×(325-317)=660-654+480=170+(597-340)=911-333-144=368×6-89=449-18×4=225+218+71=958+417=210×6-65=260-33×5=240+89×4=804-280-440=391×(285-279)=71+387-152=930×(565-558)=3/6+2/6=14+153+145=364+112-81=293+(404-98)=244+424+209=723-(194+388)=94+(395-391)=412-59=324-(499-205)=765×6-482=174+27+268=58×2=445-215=973-(551-533)=355-(175-67)=184×(283-279)=470-(402-213)=388-362+310=320-250=815-317=903-59×3=325×2-639=505+355×2=436-131×3=379+692-566=296+203+536=334×(401-396)=114+(416-280)=13×(354-348)=760-(601-426)=434-13×4=654×7=470-(374+77)=199+444=500-98=795+(998-512)=474-266-45=351-(22+195)=453+312-561=232×2+443=321+329=347-(209+72)=801-(571+17)=491-239=476-223-157=322-29×7=438-396+296=149×5-518=481-121×3=485×2+185=394+102-261=362×2=598-(243+316)=502+903-422=909×(553-548)=697+198+179=786+991+981=112×6=917+(737-718)=450-433=225×2-181=488-(209-142)=886-18-107=696-(759-375)=216×4-288=105×(460-455)=364+64×6=417-196-51=982-(258+230)=554×8-287=251-135+86=5/7-2/7=160-46-15=279+(390-331)=188-(16+155)=921+215-615=337-250+321=370-81-260=818+234×3=249-111+838=451×2-414=82×9=474×(562-558)=450+916=268-168+353=217+186=672-84×8=931-274+620=2/3-1/3=58+137-108=175+108=4/7-1/7=569×(75-69)=114+288=404-111+170=714-453-123=76+(30-24)=39×(534-529)=990-(124+723)=88×(220-214)=204+(370-203)=492+(431-276)=961+38+157=480-(216+129)=152×4+650=412×2-246=68+127-145=796×9=3/6-1/6=406-82+128=669-122-499=458-325-58=54×4+462=114+25=458+(250-95)=491-374=323-291+246=224-139=358+366=102+948+814=36-10=256-(46+130)=278-82×2=152-(157-147)=679-(897-442)=275-49×4=853×8-807=126+52=213+931=505+501+281=994-488×2=379+38-182=569×2=6/10+4/10=273-25×3=86+(397-235)=228-(104+32)=346-23×9=861+65+320=120×4=140×5=734-170-350=134+(250-123)=961-681+718=105×3+522=188×2=926-633+378=595×(484-478)=142-(95+13)=739-616+494=464-(119-19)=676×8-431=286+(446-387)=882-822+326=417-79×2=999×6=265×3-185=478-356-42=124+360=64×4=19+315×2=302×2+126=439-20=437-240+178=815+(588-528)=95+299=446×2-100=258-11×5=571-260×2=236+47-157=134+258-57=848+443+761=65+752+54=422-84=363-(64+30)=195×4-555=225-57-53=292+386+212=910+887-223=968-421×2=105+101=780×(956-948)=758-382+786=686-(144+45)=231+61=517+448-329=66+491+842=389-(148+205)=179-122+305=274×3=94+87=235×(968-960)=204-(104+73)=385-(61+147)=35×6+42=403-69×4=454-432=576-(289+173)=430+(921-90)=114×6+28=442-259+68=170-(212-42)=655+733-989=686×3=47+(720-702)=871-(712+76)=816+196×5=362-59-34=341+143=941-(404+83)=825+167+681=738+684-747=413+(491-421)=456×2+21=625-579+536=465-385=330+280+16=405-(176+83)=805-(983-533)=97+101=394-229+333=411+48+403=363×2=572-(560-198)=577+828-488=143×(481-477)=654+(923-179)=74×5=411-(43+217)=296+85×3=396-12×6=527×6-960=599-136-12=246+240=630-(280-17)=263+25+626=477-(98+121)=846+372+193=590-90+531=29+41×6=634+133×6=66+292=230×3+564=413-58-163=954-(188-102)=192+272=852-135×2=396-68=61×(454-448)=301-237+201=618-(312+251)=422-51×6=857-97×8=314×2+47=參考答案288-229=5991×(274-266)=728529+884=1413162-(239-212)=135105+28=133320-75-106=139177+(997-759)=415129+(199-53)=275260-(317-136)=79997-186×2=625242×(96-93)=726300+(272-39)=533256×(451-448)=768951+945=1896315+135=450382×2+161=92595×7=665178-45+24=15740×9=360423-276-141=6538-96×2=346426+(256-73)=6091/6+2/6=3/6984+296-347=93328+275-65=238649-326=323402-212=19037+29+427=493497-168+66=395451-312+183=322449×(994-991)=1347347×5-712=1023399-(79-39)=35993×8+174=918719-(757-287)=249713+516=122972+(944-406)=61053×5=265335+149-196=288249+410-461=198356+(283-269)=370746-(348+110)=288655-227=428228-23×4=136424-64×4=168892×8-442=6694688+220+953=1861386+108×2=60229-13+333=34994+820+489=1403591-(534+56)=1498-139-245=114106×9=954402×(746-737)=3618780-(158+174)=448563-75×5=188337×2-216=458591-(686-291)=1964/5-1/5=3/5283+98+55=436533-24×7=365125+656+119=900300-(824-550)=2638+459-406=91708+256×2=1220882×2=176482+354-276=160141+24=165446×7-74=3048677-282=395953×9=8577232+118=350115+175=2902/5+3/5=1491-29=462470-198+151=42370+548+671=128993+(124-83)=134879-558+56=377140×7+348=1328299×2=598292×2-217=367185-(310-222)=97527×3=1581143+(813-504)=452161+110×4=601444×2+277=1165825-434-318=73627-74×5=257422-(445-429)=406344+(487-126)=70518×5=9052+850+938=1840449-248-85=116991×(298-289)=891979+523+60=662179-(409-391)=1615/9+3/9=8/9609-(401+96)=112884-(280-255)=859407×2-130=68490×(77-73)=360171-73-81=17358×2-446=270901-678+613=83663×2+371=497677+(406-17)=1066733×8-300=5564347-271=76590×(34-30)=2360411-(199+165)=47871-513=358330-50=280506-(802-647)=351525-99-80=346412-388+69=93448-(281-31)=198824+37×2=898835-(468-327)=694899-237-380=282359×2-631=87596-113+68=551176×(109-105)=704288+666=954383+(587-368)=602219-(184-91)=126368-(426-347)=289379-(470-435)=344394-16×7=282442+48+346=836499-326-12=161460-189-254=17377-110×3=47262×3-70=716905+127+68=1100397-(225+97)=75850+894-653=1091575+421=996719-103+557=1173969×5=4845294×(302-299)=88290+392-430=52429-(247-11)=193121+73×5=486776×7-516=4916508×5=2540533-(129+402)=2672+(683-680)=67586×6=516359+38-295=102198-(32+97)=69713-(750-462)=4252/8-1/8=1/8976-498+498=976495-(71+179)=245657-123×5=42973-220-482=271718-10×9=62891×(23-16)=63786+123-104=105538+250+159=947852-(478-350)=7241/5+2/5=3/5146+79-183=42860+60×7=1280151+172-283=40912+666-236=1342488×9=4392345+419=764855-(36+319)=500125×2=250173×(262-257)=865755-542=213920-(259+71)=590827-679+873=1021876+591=1467458-64×6=74174×4=696352-215-98=39257×2=514371-260=111659+603=1262157-(448-319)=28260+164-279=1452/7+3/7=5/7488-(83+171)=234540×6=3240307+108=415114×8-588=32440×9-128=23217×5+41=126318×2+871=1507896+(407-288)=1015247-105×2=37267-65=202428-94-71=2631/5+3/5=4/5308×3-89=835779-124=65566×(291-282)=594270×(217-209)=2160631×2-638=624323+79=402485×5-63=2362312+(451-85)=678133×6-72=726428-343-29=56348-83=265117×(363-360)=351729+(770-583)=916864+608+59=1531514-104-167=243271×3-317=496516-464+749=80173+366=439447-(328+12)=107827-(309+412)=106421+164=585493+33×4=625620+863-343=114092+236+406=7344/10+2/10=6/1023+427+193=64377×3+266=497472-136-173=163363+510-59=814145+49-39=155101-13×5=36204+457+307=968468-86=38296×3+334=622802×5-488=3522229+(412-362)=279395-51×6=89936×4=3744377+613=9903/6-2/6=1/6715×3=2145350+800-903=247122+(399-182)=339951+96×2=1143315+160=475386-(439-90)=37388-155+193=42687+320-161=246562+759=1321221×2=442467+176=643472+(318-130)=660674-194-232=248233+(946-207)=972849-(472+55)=322522×2=1044168×(488-481)=117676×9+13=697262+716+677=1655241+480=72137+(269-93)=213184×5=92039×5=195258×(109-106)=774195+26×3=273992-10×5=942317-(232-63)=148441×6-904=1742503+103+277=883772×7=540428+415×2=858152×6-138=774929+15×4=989895-127-103=665330-171-34=125264-73=191966-129-14=823103×3+543=852652+888+950=249036×8+144=432303+743+141=118751×(483-474)=459784-108=676823-634=18998×4=39277+318×3=1031379-42×6=127721-(268+274)=179180-39×2=102362+184=546293-14=279570+341=911489×3=1467938+897=1835125+298×2=721147+(265-59)=353100+394+489=983299-58+968=1209171×9-287=1252595-300+806=1101159-(70+15)=74465-(191+115)=159489-34×4=35318+610-438=190107+595=702824×(369-361)=6592222×6-257=1075612-228+733=1117657×2=1314753-(593-489)=649416+377+89=882432-180=25211+46=57386-(426-399)=35911×(245-241)=44202-176+846=87213×9+146=263893-95×8=133225×3=67557-38+154=173230+214+473=917491-389-46=56641+230=871339-207+164=29647×(139-131)=376497+(803-506)=794446-113×2=220275-(743-679)=211977-71=906791×(250-244)=4746371-(232-150)=289951×(737-729)=7608294+648+589=1531592-170+349=771351+926-713=564374+524+98=99666+(119-79)=106297+215+62=57429×(304-297)=203732-686=4687×(367-359)=6961/7+3/7=4/7371-154×2=63777+324+805=1906578×7-38=400844×(189-185)=17641+445-387=99135×6-677=133763-172×3=247762+(907-842)=827312×(949-942)=2184554-209-54=291499×4-656=1340458×4-188=164425×(163-160)=75201-182+442=461439-339+131=231411-133=27814+13=27325+112=43781×9+130=859734-183+339=890131×3=393411-(25+258)=128929-115×3=584401+(329-299)=431683+823-708=798732+843-758=817845-703=14259×(472-469)=177291-(176+11)=104188×4-577=175137-53-64=20462-(895-658)=225446-283=163334-41+14=307435-336+333=432141×7-456=531706-(528+105)=73201+130=33154+315×3=999333-(101-37)=269195+99=294132+17+624=773257×2+408=922470-316-31=123374-(168-46)=252664-88×6=136183-160=23326×(727-721)=1956922-546-215=161838-291×2=256387-24×2=339455×(581-577)=1820441+290+53=784188+257-323=122487-473+363=377511-87×5=76437-315+38=160240×2+444=92494×(127-120)=658854-416-61=377133×8-948=116453-370+286=36960+(778-161)=677157+805-846=11676×(288-284)=304868×7=6076441-16×6=345495×5=2475451-76-251=124782+639-52=1369959-(406+369)=184645-(415-356)=586499-33×7=268886+(995-132)=174913×(73-64)=117328×3=9847/10-1/10=6/10458-(10+381)=6769×9=621909-(993-767)=683705-(175-103)=633971+(644-520)=1095801-(435+170)=19685+176=261637-(717-470)=390306+(410-46)=670118×(61-53)=94466+187-117=136103-81+311=333825-(461+221)=1432/5-1/5=1/5458-(424-194)=228627+(264-186)=705484-(53+254)=177831+(918-717)=1032448+244+196=888355+151+700=1206891×(165-158)=6237792-114-539=139371-135+16=252237+(104-101)=240413-370=43400+324=724419-46×8=5151+276+420=747409-119-166=124243+52=295190-(396-257)=51254×3+491=125372×9-490=158455-147-195=11335+181+519=735389+134+292=81520×7=140546-17-489=4093×(429-422)=651394-312=82188×4=752417-78×2=261211-33=178929+99×9=1820579-101-224=254153×(137-133)=61295×(93-86)=665276-10+186=452776-432=344225-81=144261×5=13053/4-1/4=2/4320-68×2=184959-85+638=1512686+967-939=714469+607+685=1761827-160+161=828898-86-674=13820+(429-298)=151110×5=550183+(443-351)=275756-647+902=1011278×2-14=542607×(665-658)=4249231-158=73813-(897-572)=488179×6-811=26343×(241-232)=387712-416=296675+798-472=1001490+399=889197+438+79=714729×7-926=4177947+(998-276)=1669214-(445-374)=143157×6-72=870432-11=421116×9=1044301+263×2=827780-(161+138)=481978×6=586889×2+746=924421-275=146653-(832-765)=586472-413=59760-(710-566)=616747-30=717157-15-18=124342×4-287=1081631×5-616=2539449-121=328262-174=88105+177+68=350947+928-877=99870×9-580=50119+87=206332+76-375=33243-131=112420-(185+148)=87105×2-21=189353+24×3=42519+103×4=431879+165+146=1190795×8-122=6238161+222-12=371949-433×2=83120×7=840310-(493-346)=163312+404+67=783431+32-69=394450-416+225=25938+378-212=204405+51×5=660376-103-217=56350+138×3=764797-(23+176)=598217+304×2=825380-261-42=77854-233-406=215315+183-196=302332-164-88=80276-(758-605)=123435-76=3592/4-1/4=1/4486-340-49=97498-16×5=41838+(424-417)=45743-(133+554)=56360-325=35127×3-352=29844×(527-523)=3376469+245=714984-227-701=56581-63×4=329230+(203-147)=286269+(417-77)=609210×4-698=1424/7-2/7=2/7151+355+75=581440+769-707=502374-65-149=160366-21×3=30326+183-171=3814×8=11216×9+500=644162×(63-57)=972911-(610+288)=13424-(391-73)=106277+(319-279)=31752-24=282/6+3/6=5/6363+(994-517)=84078+327-256=149635+509-618=526118-(25+17)=76952-745+702=909573×7=401140+117-103=54475-(400-86)=161769-(116-26)=679449-(45+163)=241173-94=79528-48-102=378385-(176-18)=227520×8=4160425×2-627=223318+45-51=312392-(307+30)=55282-21×4=198971+65-556=480226+134=3601/4+2/4=3/4425-293=132257+967+953=2177832+(763-312)=1283236-(101+119)=1621×6=126291×3-276=597460-40-184=236169×(325-317)=1352660-654+480=486170+(597-340)=427911-333-144=434368×6-89=2119449-18×4=377225+218+71=514958+417=1375210×6-65=1195260-33×5=95240+89×4=596804-280-440=84391×(285-279)=234671+387-152=306930×(565-558)=65103/6+2/6=5/614+153+145=312364+112-81=395293+(404-98)=599244+424+209=877723-(194+388)=14194+(395-391)=98412-59=353324-(499-205)=30765×6-482=4108174+27+268=46958×2=116445-215=230973-(551-533)=955355-(175-67)=247184×(283-279)=736470-(402-213)=281388-362+310=336320-250=70815-317=498903-59×3=726325×2-639=11505+355×2=1215436-131×3=43379+692-566=505296+203+536=1035334×(401-396)=1670114+(416-280)=25013×(354-348)=78760-(601-426)=585434-13×4=382654×7=4578470-(374+77)=19199+444=643500-98=402795+(998-512)=1281474-266-45=163351-(22+195)=134453+312-561=204232×2+443=907321+329=650347-(209+72)=66801-(571+17)=213491-239=252476-223-157=96322-29×7=119438-396+296=338149×5-518=227481-121×3=118485×2+185=1155394+102-261=235362×2=724598-(243+316)=39502+903-422=983909×(553-548)=4545697+198+179=1074786+991+981=2758112×6=672917+(737-718)=936450-433=17225×2-181=269488-(209-142)=421886-18-107=761696-(759-375)=312216×4-288=576105×(460-455)=525364+64×6=748417-196-51=170982-(258+230)=494554×8-287=4145251-135+86=2025/7-2/7=3/7160-46-15=99279+(390-331)=338188-(16+155)=17921+215-615=521337-250+321=408370-81-260=29818+234×3=1520249-111+838=976451×2-414=48882×9=738474×(562-558)=1896450+916=1366268-168+353=453217+186=403672-84×8=0931-274+620=12772/3-1/3=1/358+137-108=87175+108=2834/7-1/7=3/7569×(75-69)=3414114+288=402404-111+170=463714-453-123=13876+(30-24)=8239×(534-529)=195990-(124+723)=14388×(220