三年級數學(上)計算題專項練習附答案集錦

三年級數學(上)計算題專項練習附答案集錦214×4=127+301-193=76+272-124=4/6-1/6=1/4+2/4=18+367+347=964-302+142=969-364-502=465-314=21+551+317=971-(181+282)=701×8-486=245-(409-316)=60+423×2=997-(447+184)=873×(896-887)=454-(30+187)=259+194=672+(638-606)=864-245+30=744-311-223=434-157=262+289+269=402-(475-101)=2/5-1/5=313+79-66=933+504=761+515-640=880+833=410-(66+137)=781×2=356+213=107+251+66=401-355+190=982×4=464-349+212=161×(345-339)=796+759+328=453+857+472=630+322+586=185-62×2=713+947-400=452-55×6=345×2-257=328-35×9=258-197+176=19+26×9=983-250×3=346-(123+191)=440-69+349=1/10+2/10=168+273=52+811-337=262+33×5=155+117=69+347+213=84+457=500+(545-382)=997+540-616=221-(213-145)=375-347=328×7=926-(375+416)=483-(234-147)=903-590=358-30-208=234×3-200=212-168=274-118=655-105=474+(208-184)=122+75+408=752+318-485=221+48+715=874-403=22+463-214=98+768+17=858+321-994=105+(474-37)=480+283=310×(36-33)=4/7-1/7=654-562=296+182=994-615=238+331=600-(126+278)=724-(63+221)=220+240-354=90+106=909+811+794=378+746=2/7-1/7=789+296=827-(118+491)=13×5=778-658-90=286×2-320=233+250=199+(434-226)=55+282=785+137+184=288-259=625-83×7=408-198×2=326-(649-479)=206×2+423=355+(354-165)=148+133×4=237+185=42+(357-323)=181+139+48=200-22×5=464-212=141+(819-341)=900-(128-59)=281-60-14=426+(477-140)=113+356=119×3-185=491×4-574=47×9+244=670+999-79=940-540=326+133-408=3/7+4/7=114×5-534=467+(903-653)=89×7+14=69×7+481=270+515-411=531-(449-364)=71+(326-309)=112+43-42=485×(221-215)=612-142×3=320-(46-44)=962-354=453-(342+110)=333-287=173×3=778+899-80=13×8=479-84×2=185×3=824-(82+190)=476-13×6=488-413=796-64×5=182-147=428-(104+253)=970-434+304=147×6-399=32+218+331=895+390+997=182×(272-269)=866×(232-226)=132+112=99+118=133×3=807-127×4=111+328=678-251=351-277+370=625-253-100=172×(313-308)=868+995=388+127+111=100×7-149=431-26×9=39×5-174=858×(948-942)=437-(173+42)=145+(375-32)=365-178×2=101×6-171=495-(359+10)=1/5+4/5=268+378-549=813-232×2=676-500+929=545+130-495=351+40×5=490-(373+64)=412-292=807-(555-299)=407-(64+125)=119+78=854-539=749-74+132=724-15-579=846×7=844-344-85=209×6-136=190×4=344+(279-141)=875-(694+11)=380-98×2=921-784-62=976-777=198×3-516=243+167=893-(62+409)=8/10+2/10=589-235-127=980+197×3=633+70+856=573-94×4=166×(148-143)=195+183+389=914-62×5=317-294+107=681+(373-206)=441×9=105-97+441=715-(94+323)=117×6=142+27=274-(59-53)=329-25×2=321×3-554=899-859+798=417+23+124=608-30×8=848-557+792=379×2-490=398-(355-191)=225×2-204=39+(947-667)=412-(145-26)=263+(147-117)=371-135+157=542-466+281=257×3-354=224×(107-104)=662-575+610=145×(113-108)=461-(517-451)=221×4-780=899-356+949=111+153=131+154=514×2-199=130-(53+19)=943-872=356-83=317+(346-61)=438-38×9=124×8-789=890-(792-126)=600-(596-445)=630+600-953=165-(12+57)=125-(80+45)=409-42-179=68×2+79=754+135=716+(706-560)=184+38=442-115+233=350×2+217=21+(490-66)=538+741+542=112×8-159=152-(44+80)=426-60×7=347-325+13=130×2+422=182+14×8=843+98+42=939-425×2=70×(297-291)=397+(466-101)=50+123×6=354-(447-168)=289-(422-394)=697-(417-229)=890-(462-61)=362-160×2=292-128×2=913×(572-567)=287+950+536=999-787+982=229×3+153=629-(203-89)=485-373=614-(883-602)=373+912-424=38+376-264=247+301×3=752-181×2=688+(986-520)=979-71×8=464-115=338×8-790=239-16×9=603-(79+283)=51×8=357×2-211=286×3-172=25×7=244×3-269=859-(641-533)=34×3+473=470+(409-65)=357-71-37=391-272-115=164-(332-327)=466-448=11×(183-174)=289-(107+13)=470×2=771+459+716=358-(231-215)=492-476+418=499-(81+405)=977×4=111×(328-324)=874-122-377=867+20-180=715+81×9=173+117-276=238×3=542-(335-111)=465-58=17×8-45=64×(83-78)=168-119+199=793+468+792=696×(663-656)=274-(126+126)=266+57×5=76×(829-821)=51×(177-168)=258+30+257=798-(81+378)=229×3+568=37+108×6=698+694-137=164+(360-34)=374+(416-29)=545-176×2=386-(490-181)=205×3+255=942-(274-58)=462-(206-158)=512+45×6=283-19=11×5=209+454=963-427-155=431-41+857=987+157×5=728×4-292=449-(241-210)=709-691+628=108×2-87=320+432-149=495-290+256=859-653-200=2/6-1/6=348+304+219=232-69=402-200-82=226×3=893+836-242=126+(317-117)=130×(249-243)=140×3=181-(102-78)=392+397=360-152=832+264-218=585-(250+318)=210×(459-455)=132-27×4=486-312=407-114-216=907×4=418-88×2=769×9=73×(121-118)=29+448-129=376-54×6=161×(293-290)=908-(317+477)=387×8=474-(60+348)=467×3=105×4-383=61+837+65=291+491=208-89=33-17=367-131+729=236-111=149×(67-63)=466×7-776=147-86+338=400-(156-83)=151×5-466=224+184-32=33×3=848-273-443=471+98+152=25×5+299=194+256=688+999=626-99=4/6-2/6=323+(125-28)=666+306=56×5=629-(216+275)=308-298+72=565×(542-535)=299+23×8=286-84=200×4-742=429-206-97=514+868+795=673+847-887=60+181+561=847-244=219+190=334+701+226=119+(286-50)=153+51+184=230-84-87=503-(48+100)=104+513=539-514=21×8=480-234-206=959-740=155×2=703+158-487=460-(950-627)=598×(931-924)=277-274+293=97×(377-371)=844+(968-906)=633+351-896=266×3=402×8-173=231-(28+49)=311×(150-144)=474-70-43=180×6=161+115-44=71×(443-440)=869-103+400=983-208+841=195+103×7=444-(444-331)=150+700-798=157×(484-478)=605×6-248=842-288×2=71×8+883=306+822+874=329-27×7=19×2+124=134×6=793-286×2=342+(289-255)=827×6-971=842-(147+647)=188+789=874+57×6=430-191+237=567+175-645=397-(187-154)=862-252×3=435×(392-386)=278-(401-127)=783+30×2=189+267=334+874=902+(586-223)=211-125=486-285-153=6/10-3/10=904+322+192=415-357-20=334+102-319=801-88-42=459-(44+124)=496-(180-86)=144-(166-141)=461×9-62=383-(58+240)=365×4-596=175+296-280=967-327+639=244-(454-360)=118+250=883-302-156=626×9=260+523=644+(889-501)=781+775=860-(162+677)=115-(754-734)=719-(648-417)=129×(507-502)=412-289-72=162+311-376=178+224+553=366×2-197=113+432+97=459-29×5=85×(52-43)=952×5=736-208-437=644+61+234=705-(671-547)=391-391+879=463-365+387=736-(915-895)=50×3+277=894-96×8=96×3+470=167+50+578=260+(214-179)=132+438=502-114=436-(339-131)=823-346=310-(219+18)=107+563+150=708×(238-230)=293-211-33=371-249=199+562+158=796+(915-209)=458-232=463-70×6=198-100=23+388-310=394-277+274=325+98-338=350+285-292=67+412+258=544-54×2=461-(42+256)=671×3-562=279+(835-642)=82×(666-661)=988-588-341=64×4+513=463-244=573×4-299=384-(42+88)=875+830=323-48-33=385-59-312=380+893+557=295-177+102=758-619=15+352-33=1/7+5/7=484-302=221×4+51=98×3+918=984-552=581+862+672=772-(298+327)=369×2=130×2=767×2-350=283+426+257=455-(412-316)=58×6-132=716-96-133=641-36+757=644-104-445=987+683+769=91+384=322-177+87=410-162=110+259=247-227+72=450-61=131+403+542=307+151-372=86+(785-146)=377×2=405-(127-18)=147+(262-261)=517+(609-315)=439×5-589=111×(354-345)=2/8+4/8=843-408×2=405-103-210=326+(257-201)=333-26×3=800×(795-790)=91×5=745×(794-788)=169×5=500-(222+173)=152+331-346=83+203+473=636×2-928=415-197-129=295+(448-96)=74+238=139+(802-733)=614×(72-66)=946+(904-552)=49×9=148×2+159=278×2+992=194×(91-87)=493-205+924=253-114+286=499-(275+109)=465×2+647=210×(298-295)=449-(309-291)=154×2=278×3+12=109+211=193×9=434-206-91=505×5-681=893-493+55=443+(477-333)=180+128+433=107+481=267-100=3/10+7/10=481-(105+278)=641+26×3=282+434+250=326+(415-363)=783+684=835-(212+273)=624-367-134=69+287-352=629-(609+15)=714+921-88=870-865+579=12+470-244=172+122-32=923-73×9=77×7=492×8-890=415+(466-441)=984×8=874+(667-103)=303-51×2=531+46×6=144+272+531=480-387+258=421×2=109-75+94=796-135=270-(17+110)=460-84-163=56×(268-259)=405-(420-223)=483-18×2=184+612+156=715-160=747-67×4=744-513-100=468-227×2=447-409=298-21×7=370+(419-66)=107+116-115=478+16-120=289-(311-181)=174×(461-457)=680×5-478=231×3+145=869×9-181=43+114=453×(229-222)=284+952=237-(13+106)=905-(994-754)=523+(925-412)=745+(988-431)=417-(121+42)=27×4+347=181+405-210=406×2-336=886×(182-174)=238+50×3=261-230-20=449-263+297=375+253×2=496+54×3=498-(246+178)=320-175-51=482-102×4=66×9=864+300-549=464-20-37=581+606+278=309+176-274=312-100+45=438-175-23=149+194-171=648-135×4=411-341-10=378-(66+101)=322+(792-648)=464-(470-211)=611×9=212-116+131=189-76×2=691-(911-789)=695+736-79=449+111×3=844+(685-336)=831+(991-40)=87×8=214-(102+112)=63+13=154×6-665=2/4-1/4=498-298=270+291=107×2=849-(320+380)=471-(442-93)=331-(237+74)=73+350+201=396-(784-446)=148×2-141=435-(320-227)=77×7+387=963-188-407=150-17×2=38×3+387=470-152×3=996-316=433×2-95=277+108=717+218-397=71×(222-214)=493-125-177=468×2+635=498-408+331=406-168×2=920-542-114=500+418+540=823-(378+160)=65×6+36=304-42-63=271+(332-142)=469×2-102=834-(481+316)=46×9=721-307+113=224×4-379=89×(240-232)=294×(235-230)=603+63×2=761+460+474=3/7-1/7=498-271-161=734×9=586-179-376=806-130-381=137+350=796-(769-722)=749-210×2=61×5-25=411×2=286+131=242×(823-814)=247×(733-727)=385×3=213+(454-275)=288+138×5=369+(742-166)=42+(650-533)=220+56+231=407×7-613=3/6-2/6=451-440+418=1/7+3/7=945×3=70×7=204+843+893=69-45+82=135+155-125=533×5-409=98×4+928=703+148+71=693-(847-307)=414+(256-117)=4/7+2/7=183-49+278=690-475-43=330-171-90=355+90=433+(282-172)=34×(184-181)=779×(269-262)=615+588-953=737-(721-638)=332+55-50=250-105=433-(67+261)=543-120+136=965+577+250=3/6+2/6=123+204=342-268-13=275-186-55=602+127×7=392×2=171-10=715×6-817=327-(773-623)=244-(368-360)=401-164-42=286×(975-967)=839+111×3=406×(58-55)=730×(995-991)=437-(383-256)=156-75-31=840+(815-214)=415-397+436=57×(436-432)=228-67-55=173×(309-306)=441+(363-237)=445-72×2=453-36×2=462-373=7/9-1/9=311-(106+145)=573+(122-21)=13×2=4/8+2/8=167+201-354=230-106+578=656×2=174×7=15×3=442-49×5=229+165×4=93×(172-169)=901×3-926=959-400+158=122+42=849-63×5=685-(451+197)=379+24×7=355-13+104=5/8-2/8=263-15×3=704×(746-742)=602×2-798=152×(266-261)=參考答案214×4=856127+301-193=23576+272-124=2244/6-1/6=3/61/4+2/4=3/418+367+347=732964-302+142=804969-364-502=103465-314=15121+551+317=889971-(181+282)=508701×8-486=5122245-(409-316)=15260+423×2=906997-(447+184)=366873×(896-887)=7857454-(30+187)=237259+194=453672+(638-606)=704864-245+30=649744-311-223=210434-157=277262+289+269=820402-(475-101)=282/5-1/5=1/5313+79-66=326933+504=1437761+515-640=636880+833=1713410-(66+137)=207781×2=1562356+213=569107+251+66=424401-355+190=236982×4=3928464-349+212=327161×(345-339)=966796+759+328=1883453+857+472=1782630+322+586=1538185-62×2=61713+947-400=1260452-55×6=122345×2-257=433328-35×9=13258-197+176=23719+26×9=253983-250×3=233346-(123+191)=32440-69+349=7201/10+2/10=3/10168+273=44152+811-337=526262+33×5=427155+117=27269+347+213=62984+457=541500+(545-382)=663997+540-616=921221-(213-145)=153375-347=28328×7=2296926-(375+416)=135483-(234-147)=396903-590=313358-30-208=120234×3-200=502212-168=44274-118=156655-105=550474+(208-184)=498122+75+408=605752+318-485=585221+48+715=984874-403=47122+463-214=27198+768+17=883858+321-994=185105+(474-37)=542480+283=763310×(36-33)=9304/7-1/7=3/7654-562=92296+182=478994-615=379238+331=569600-(126+278)=196724-(63+221)=440220+240-354=10690+106=196909+811+794=2514378+746=11242/7-1/7=1/7789+296=1085827-(118+491)=21813×5=65778-658-90=30286×2-320=252233+250=483199+(434-226)=40755+282=337785+137+184=1106288-259=29625-83×7=44408-198×2=12326-(649-479)=156206×2+423=835355+(354-165)=544148+133×4=680237+185=42242+(357-323)=76181+139+48=368200-22×5=90464-212=252141+(819-341)=619900-(128-59)=831281-60-14=207426+(477-140)=763113+356=469119×3-185=172491×4-574=139047×9+244=667670+999-79=1590940-540=400326+133-408=513/7+4/7=1114×5-534=36467+(903-653)=71789×7+14=63769×7+481=964270+515-411=374531-(449-364)=44671+(326-309)=88112+43-42=113485×(221-215)=2910612-142×3=186320-(46-44)=318962-354=608453-(342+110)=1333-287=46173×3=519778+899-80=159713×8=104479-84×2=311185×3=555824-(82+190)=552476-13×6=398488-413=75796-64×5=476182-147=35428-(104+253)=71970-434+304=840147×6-399=48332+218+331=581895+390+997=2282182×(272-269)=546866×(232-226)=5196132+112=24499+118=217133×3=399807-127×4=299111+328=439678-251=427351-277+370=444625-253-100=272172×(313-308)=860868+995=1863388+127+111=626100×7-149=551431-26×9=19739×5-174=21858×(948-942)=5148437-(173+42)=222145+(375-32)=488365-178×2=9101×6-171=435495-(359+10)=1261/5+4/5=1268+378-549=97813-232×2=349676-500+929=1105545+130-495=180351+40×5=551490-(373+64)=53412-292=120807-(555-299)=551407-(64+125)=218119+78=197854-539=315749-74+132=807724-15-579=130846×7=5922844-344-85=415209×6-136=1118190×4=760344+(279-141)=482875-(694+11)=170380-98×2=184921-784-62=75976-777=199198×3-516=78243+167=410893-(62+409)=4228/10+2/10=1589-235-127=227980+197×3=1571633+70+856=1559573-94×4=197166×(148-143)=830195+183+389=767914-62×5=604317-294+107=130681+(373-206)=848441×9=3969105-97+441=449715-(94+323)=298117×6=702142+27=169274-(59-53)=268329-25×2=279321×3-554=409899-859+798=838417+23+124=564608-30×8=368848-557+792=1083379×2-490=268398-(355-191)=234225×2-204=24639+(947-667)=319412-(145-26)=293263+(147-117)=293371-135+157=393542-466+281=357257×3-354=417224×(107-104)=672662-575+610=697145×(113-108)=725461-(517-451)=395221×4-780=104899-356+949=1492111+153=264131+154=285514×2-199=829130-(53+19)=58943-872=71356-83=273317+(346-61)=602438-38×9=96124×8-789=203890-(792-126)=224600-(596-445)=449630+600-953=277165-(12+57)=96125-(80+45)=0409-42-179=18868×2+79=215754+135=889716+(706-560)=862184+38=222442-115+233=560350×2+217=91721+(490-66)=445538+741+542=1821112×8-159=737152-(44+80)=28426-60×7=6347-325+13=35130×2+422=682182+14×8=294843+98+42=983939-425×2=8970×(297-291)=420397+(466-101)=76250+123×6=788354-(447-168)=75289-(422-394)=261697-(417-229)=509890-(462-61)=489362-160×2=42292-128×2=36913×(572-567)=4565287+950+536=1773999-787+982=1194229×3+153=840629-(203-89)=515485-373=112614-(883-602)=333373+912-424=86138+376-264=150247+301×3=1150752-181×2=390688+(986-520)=1154979-71×8=411464-115=349338×8-790=1914239-16×9=95603-(79+283)=24151×8=408357×2-211=503286×3-172=68625×7=175244×3-269=463859-(641-533)=75134×3+473=575470+(409-65)=814357-71-37=249391-272-115=4164-(332-327)=159466-448=1811×(183-174)=99289-(107+13)=169470×2=940771+459+716=1946358-(231-215)=342492-476+418=434499-(81+405)=13977×4=3908111×(328-324)=444874-122-377=375867+20-180=707715+81×9=1444173+117-276=14238×3=714542-(335-111)=318465-58=40717×8-45=9164×(83-78)=320168-119+199=248793+468+792=2053696×(663-656)=4872274-(126+126)=22266+57×5=55176×(829-821)=60851×(177-168)=459258+30+257=545798-(81+378)=339229×3+568=125537+108×6=685698+694-137=1255164+(360-34)=490374+(416-29)=761545-176×2=193386-(490-181)=77205×3+255=870942-(274-58)=726462-(206-158)=414512+45×6=782283-19=26411×5=55209+454=663963-427-155=381431-41+857=1247987+157×5=1772728×4-292=2620449-(241-210)=418709-691+628=646108×2-87=129320+432-149=603495-290+256=461859-653-200=62/6-1/6=1/6348+304+219=871232-69=163402-200-82=120226×3=678893+836-242=1487126+(317-117)=326130×(249-243)=780140×3=420181-(102-78)=157392+397=789360-152=208832+264-218=878585-(250+318)=17210×(459-455)=840132-27×4=24486-312=174407-114-216=77907×4=3628418-88×2=242769×9=692173×(121-118)=21929+448-129=348376-54×6=52161×(293-290)=483908-(317+477)=114387×8=3096474-(60+348)=66467×3=1401105×4-383=3761+837+65=963291+491=782208-89=11933-17=16367-131+729=965236-111=125149×(67-63)=596466×7-776=2486147-86+338=399400-(156-83)=327151×5-466=289224+184-32=37633×3=99848-273-443=132471+98+152=72125×5+299=424194+256=450688+999=1687626-99=5274/6-2/6=2/6323+(125-28)=420666+306=97256×5=280629-(216+275)=138308-298+72=82565×(542-535)=3955299+23×8=483286-84=202200×4-742=58429-206-97=126514+868+795=2177673+847-887=63360+181+561=802847-244=603219+190=409334+701+226=1261119+(286-50)=355153+51+184=388230-84-87=59503-(48+100)=355104+513=617539-514=2521×8=168480-234-206=40959-740=219155×2=310703+158-487=374460-(950-627)=137598×(931-924)=4186277-274+293=29697×(377-371)=582844+(968-906)=906633+351-896=88266×3=798402×8-173=3043231-(28+49)=154311×(150-144)=1866474-70-43=361180×6=1080161+115-44=23271×(443-440)=213869-103+400=1166983-208+841=1616195+103×7=916444-(444-331)=331150+700-798=52157×(484-478)=942605×6-248=3382842-288×2=26671×8+883=1451306+822+874=2002329-27×7=14019×2+124=162134×6=804793-286×2=221342+(289-255)=376827×6-971=3991842-(147+647)=48188+789=977874+57×6=1216430-191+237=476567+175-645=97397-(187-154)=364862-252×3=106435×(392-386)=2610278-(401-127)=4783+30×2=843189+267=456334+874=1208902+(586-223)=1265211-125=86486-285-153=486/10-3/10=3/10904+322+192=1418415-357-20=38334+102-319=117801-88-42=671459-(44+124)=291496-(180-86)=402144-(166-141)=119461×9-62=4087383-(58+240)=85365×4-596=864175+296-280=191967-327+639=1279244-(454-360)=150118+250=368883-302-156=425626×9=5634260+523=783644+(889-501)=1032781+775=1556860-(162+677)=21115-(754-734)=95719-(648-417)=488129×(507-502)=645412-289-72=51162+311-376=97178+224+553=955366×2-197=535113+432+97=642459-29×5=31485×(52-43)=765952×5=4760736-208-437=91644+61+234=939705-(671-547)=581391-391+879=879463-365+387=485736-(915-895)=71650×3+277=427894-96×8=12696×3+470=758167+50+578=795260+(214-179)=295132+438=570502-114=388436-(339-131)=228823-346=477310-(219+18)=73107+563+150=820708×(238-230)=5664293-211-33=49371-249=122199+562+158=919796+(915-209)=1502458-232=226463-70×6=43198-100=9823+388-310=101394-277+274=391325+98-338=85350+285-292=34367+412+258=737544-54×2=436461-(42+256)=163671×3-562=1451279+(835-642)=47282×(666-661)=410988-588-341=5964×4+513=769463-244=219573×4-299=1993384-(42+88)=254875+830=1705323-48-33=242385-59-312=14380+893+557=1830295-177+102=220758-619=13915+352-33=3341/7+5/7=6/7484-302=182221×4+51=93598×3+918=1212984-552=432581+862+672=2115772-(298+327)=147369×2=738130×2=260767×2-350=1184283+426+257=966455-(412-316)=35958×6-132=216716-96-133=487641-36+757=1362644-104-445=95987+683+769=243991+384=475322-177+87=232410-162=248110+259=369247-227+72=92450-61=389131+403+542=1076307+151-372=8686+(785-146)=725377×2=754405-(127-18)=296147+(262-261)=148517+(609-315)=811439×5-589=1606111×(354-345)=9992/8+4/8=6/8843-408×2=27405-103-210=92326+(257-201)=382333-26×3=255800×(795-790)=400091×5=455745×(794-788)=4470169×5=845500-(222+173)=105152+331-346=13783+203+473=759636×2-928=344415-197-129=89295+(448-96)=64774+238=312139+(802-733)=208614×(72-66)=3684946+(904-552)=129849×9=441148×2+159=455278×2+992=1548194×(91-87)=776493-205+924=1212253-114+286=425499-(275+109)=115465×2+647=1577210×(298-295)=630449-(309-291)=431154×2=308278×3+12=846109+211=320193×9=1737434-206-91=137505×5-681=1844893-493+55=455443+(477-333)=587180+128+433=741107+481=588267-100=1673/10+7/10=1481-(105+278)=98641+26×3=719282+434+250=966326+(415-363)=378783+684=1467835-(212+273)=350624-367-134=12369+287-352=4629-(609+15)=5714+921-88=1547870-865+579=58412+470-244=238172+122-32=262923-73×9=26677×7=539492×8-890=3046415+(466-441)=440984×8=7872874+(667-103)=1438303-51×2=201531+46×6=807144+272+531=947480-387+258=351421×2=842109-75+94=128796-135=661270-(17+110)=143460-84-163=21356×(268-259)=504405-(420-223)=208483-18×2=447184+612+156=952715-160=555747-67×4=479744-513-100=131468-227×2=14447-409=38298-21×7=151370+(419-66)=723107+116-115=108478+16-120=374289-(311-181)=159174×(461-457)=696680×5-478=2922231×3+145=838869×9-181=764043+114=157453×(229-222)=3171284+952=1236237-(13+106)=118905-(994-754)=665523+(925-412)=1036745+(988-431)=1302417-(121+42)=25427×4+347=455181+405-210=376406×2-336=476886×(182-174)=7088238+50×3=388261-230-20=11449-263+297=483375+253×2=881496+54×3=658498-(246+178)=74320-175-51=94482-102×4=7466×9=594864+300-549=615464-20-37=407581+606+278=1465309+176-274=211312-100+45=257438-175-23=240149+194-171=172648-135×4=108411-341-10=60378-(66+1