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344+438=290+(132-102)=37×3+336=581×(647-640)=111+21×2=335+278-466=4/7-1/7=363+(187-55)=572×(287-282)=991-(141+126)=828-87=139×(417-412)=890-(798+73)=720-(48+174)=213+114+126=772-519+718=351+(709-134)=58×(30-21)=364-(133+151)=483-(154+12)=987×7=63×8=142+504+270=144×2=930-432+67=404+(169-114)=197×(419-416)=959-81-122=362×2=216×2=641-(84+476)=286+34-243=412-(12+238)=492-258+36=520×6=375-(184+87)=415+(791-229)=154+(994-443)=35+(419-146)=432-273=196+130=981×(342-334)=270×3-276=387-187-63=891+682=521+(733-387)=125+391+193=810-(365+190)=546-271=852×9=777×5-943=436-296+485=84+166+180=241-(11+215)=471×2-47=582+219+97=531+(932-572)=480-80=462-(743-609)=186-(940-937)=609×(667-659)=669×5-280=213+339+66=647-453+443=99+28=67+16+388=185-(437-355)=964-102=463-(298+75)=420-(360-312)=85×4-80=136×7-174=33×(201-196)=155-52×2=75×(670-663)=210-27-156=441-102-58=354-273+75=862+114-852=485×2=136+163-284=127+(349-341)=156×(452-449)=290-198+142=80+25×9=818-79-310=877-57×4=751-32+784=658×5-615=71+89×8=285×(327-324)=246-49=323+(257-194)=820-(810-85)=376+(379-26)=248-(423-191)=615×7-153=65+308+466=4/9-3/9=473-(438-285)=280-(169+70)=669-69×5=2/4-1/4=424-(205+98)=888×3=726-(811-462)=293-(469-258)=1/7+3/7=350+(534-354)=787-182-235=255-(254-186)=232+(286-103)=305+17-196=439+(780-589)=578-50×5=416+18-207=314×2+96=827-(741-236)=714-72-241=415+(263-202)=889-389-414=803-(338+127)=674-578-47=97+103-99=399-(30+296)=343-16×5=129×(90-85)=942-108×8=442-(277-14)=157×4+251=823-120-402=163+574-199=349-115×3=645-28+805=146+494=178×4-92=866×7-80=56+(488-388)=494-138=673+35×3=268×(111-104)=975-(466+34)=124+229-178=745+878-85=902-882+31=3/7+2/7=593-145=227+255=401-(319+23)=425-(191+178)=410+(360-157)=856-(838-616)=335-233=237+172-275=558+(404-93)=433+967-323=2/6+3/6=185+228=146×3=762-51-78=903-166×3=384-(102+183)=593+807+389=999×(408-400)=35-(494-459)=130+353=230+168+851=258×2+348=794+274=285-(224+58)=576-(410+94)=639-(89+365)=96+242-85=494-222=486×6-250=601+(643-380)=178-23×5=631+552=118+947-574=945-642=174×4=101×(480-471)=194-(882-720)=552-335+473=390-280-52=2/6-1/6=356-28-169=176×8=180-(343-266)=480+315+125=188×7=364+324=123×8-609=14+(302-152)=501-377+936=896-(378+168)=67+240=187+334=528×(214-210)=473-299+281=952-465+98=496-128×3=918+228+977=482-117×3=152+242=360-104-37=129-54×2=320-213+343=135×2+700=195×2-378=368-(180+26)=204×2-166=473-43×9=23+(686-20)=998-(669+310)=419+23×4=87×7+385=897+(675-393)=406-304+246=385-286+101=299+205×2=377×2=580+842=296+59=565-458-100=474-(134+229)=232+110-177=440-203-106=382-180×2=98-16-71=220×(81-72)=584-103×4=554-50×5=556-144=200×3=145-11=309+33-208=594-90=104+149=48×3=332×2-495=2/7-1/7=703×8=857-71-271=255+45=741-262-426=173+399+41=3/5+2/5=983-549=252-42=1/5+2/5=96-(467-376)=690-(250+279)=566+280=109+391-471=114×3-318=91×7+796=8/10-2/10=785+614+291=800+(925-33)=183+163=324×6-280=425+(606-341)=846-(758-220)=450-142-246=928-805=839+54+881=45×9+309=846-(351-179)=236-(332-272)=59+396+839=194+67-77=136+(435-142)=959+224-119=459-(488-158)=906-209-81=186+(428-31)=657-508=461-28×6=443+602-204=652-58×4=134+235-126=293-30×5=109-60-46=446-(277-226)=236-52-43=66-14×4=46×3-14=381×2=202×(458-454)=1/9+4/9=975-178+940=448-443+317=278-(53+89)=305-154+119=481-254=955+378+613=244+49×4=393×(980-974)=227-203=478-197-252=749+896-587=769+955-617=139+124-188=819+332=292×3-129=250+(963-300)=37+373-138=192×3-538=405-19-171=142+25×6=122×4=356-(182+84)=190-28=399-18=240+560+714=424-49+25=189+300+78=407-(200-39)=153-11-86=119×5-488=198×3=236-66=612×(710-707)=589-58×6=966-(103+293)=280+(151-41)=270×(915-906)=497-10=367-273-34=390+46+398=193+(287-64)=217-217+365=893+301+751=19×8=68-19+129=450-225-84=936-(842-424)=456+22-253=450-(461-43)=192+186+232=640+751-421=92+24+602=83-23=485+(147-132)=663-199=480-228-236=99×(343-340)=241×2+268=844-(625+137)=836-204×2=110+(278-181)=481-(104+33)=192×(487-484)=237-37+100=298-31×7=166-14×5=961-256×3=422+73-342=455+(312-142)=418×9-538=122+368=870-25×2=398-223+725=976-(325+372)=324+33+269=42+206=249×4=431-74=235+188-265=756-(166-101)=404-220+24=400-323-57=721+423-610=30×(313-310)=415×(885-876)=822-(112-36)=308-28×6=109-15×2=234×4=142+197=168-51×2=376+15-140=390-77×5=271+619=766-541-111=834-(208+168)=4/6-1/6=399-345=846×4-46=386+54-397=515-372=216+111=660×6-552=461-94-327=69×6-149=132+430=359+602+570=192×9-153=911-(611-320)=980-643-272=337+116-179=307-36×8=329-(203+64)=236-154+409=271+(898-774)=311×2-369=78×(418-412)=371+74-212=191+(314-168)=357+133-314=158×2-231=298×(226-223)=398+109×5=498×8=477-150×3=33×(148-145)=332-(227-27)=372-147-123=328+61=899-83-750=161×5+452=648-(38+77)=388-193=469-46×9=156×6=314+177×2=327×(262-256)=494-315+264=134×5=224+157=481+(461-357)=246+84-237=335+927-560=785-(829-312)=19+350+318=682-(994-976)=424-26-142=331×4=910-(689-325)=12+404-313=787+69×7=159×2=351+49+124=486-233-29=391×2=578-228-40=382+(386-92)=496×(875-866)=387-(315-200)=339×9=255-(265-141)=769-(574+153)=188×3-139=488-386+251=957-350-169=190×(675-671)=104+273=421-50×6=468-(148+314)=473+367+154=929+150-928=986-382=211×6=95×7=340×(644-635)=533+236=82+29=388×2+95=944-638-291=404-(139+158)=906+411-780=535×9-510=700-30=116+(774-767)=172×(653-650)=370+99×2=400+(421-413)=137+246-191=99×(77-70)=223×(100-97)=867-26×4=76×(132-124)=178-(126-24)=663+603=98×5=308×3-551=213×4+749=69×(134-127)=224-72+286=283×3=232+77×2=579+287-235=128×(429-425)=54×(276-269)=858-615=299-170=346+668=241-123-83=3/5-1/5=35+40×2=340-(166+26)=440-220=791×(535-526)=869-268=578+(743-287)=233×9=151+670+198=30×8=958+820-603=210×6=373+207×3=157+598+134=71+909-513=415×4-614=120×5+104=56+475+51=991-232-701=212-24+232=407-271=420+227+660=81+(702-636)=180+321×2=91×8+210=84+79+901=175+359=428-(963-568)=85-18=274+146-382=624+(639-293)=878+819+380=289+326+209=293+772=552-252-117=443-(46+35)=350-22=931-736-169=298-30×3=217×3+265=999-212-364=26×(391-382)=23×4+287=316-46=280+42×9=170-24×4=406-11+360=538-142×3=468-41-414=4/7+2/7=282-178=64+262+174=978×6=4/8+2/8=438-29-250=192×3=350-(201+115)=698-33×3=787-635=422-(365-357)=606-394=723×(893-885)=99+(666-447)=942×4=152+52×2=375-30×6=382-93-280=380-257+178=3/7+4/7=75-(22+28)=71+40×3=63+302=38×3+51=536-(887-380)=170+(293-119)=119-(266-250)=94+(881-571)=239+11×3=675-(99+29)=18+386+462=256+233=826-43×4=113-51+898=472-41×4=872-730-30=407-(819-486)=469+(265-95)=386-(20+365)=888-166-528=777+962+471=376-91+87=180+27+127=340-112×3=263×2-257=178+29+192=17×6=151×5-555=853×(649-641)=388+672+757=428×6=801-(354-238)=1/6+4/6=413-100-284=240×3-298=248-(87+70)=137+298+483=164-138+428=443×4-517=261+777-683=824-113+254=107×5-388=942-747+388=88×8=236-15×7=64-52=964-(817-515)=459-(408-185)=381-(135+10)=137+154×2=823-724+944=748-335+581=112×5+254=804-399=396-285+242=270-15=324-198=504×6-195=252-122+21=325-(401-98)=155×3=234×2=144+272=595+971+130=391+417-440=577×8=440-(285-18)=240+374=649×8=942×6=363×4-194=17×8+347=256-185+270=918-473+167=953+26×2=264-19×5=787-680+981=156-65=1/8+5/8=113+158=953+422-572=491×8-336=32×9+809=727-552+209=492-22×3=404×2=63×(449-444)=308+551-300=172×3+80=1/3+2/3=839-260×2=226+225=277+71=414-181=33×2+113=907-178-706=747-437=225-110=336-35×9=533-299+479=132×(255-248)=132-16+103=499×2-347=222-(155-122)=505+784-81=275-(72+183)=445+494+599=813-(844-533)=831-69+920=970-576+228=92+180=606+708-126=465-(389-38)=726-(238-217)=352×7=996-972+146=62×8=440-29×6=706×(944-940)=447+137=328+750-291=849-56=382-167+575=350+27×9=214+91-250=101×5+243=988+782-812=648+107+234=560×6-436=95×4-223=145+458+222=663+995-226=353-(492-366)=115+885+406=140+803+302=211+(300-146)=347+70×7=766-(469+119)=730-(62+661)=317+(341-76)=4/8-2/8=678+929=87+(628-495)=955×7=190+280+918=137+148-160=313×3-839=56+190=83+(198-125)=819×9-455=849×(664-660)=851×9-608=367+246+548=245-(359-151)=272-(394-135)=131+171=454-116×2=922×(787-783)=215+284=756-(437-89)=2/3-1/3=16×(363-360)=253-34+421=211×3=346-108×2=197+(474-360)=461+131×6=626×5-490=469+621-167=276-17×7=396+(251-231)=96×3-204=421-(245+136)=373+307-203=477-16=345+154-212=165+33×4=92×4-272=388+69=348-39×7=438+39+431=129×7=581+185=515-77×4=342-(495-254)=364-(200-133)=389-218+161=108+(246-72)=681+474-298=238-106+79=902-(149+11)=305-253=265-71-111=2/5-1/5=845+65×8=752×9-401=543-91+137=316+222+270=109×(309-303)=341+(570-184)=625×9=475-183-169=377+366=941×8=846-335=46+153=366-(697-665)=27×9=195×2=368-(116+90)=144+46=438-(206+207)=962-(637-58)=268×3-699=218+132=104×9-551=770×2-99=179-107=193+305=138×2+331=707-45×8=691×7-757=313-235+15=544-80×6=333-(214-85)=172×(251-247)=31×(284-275)=657×8-286=309+637+626=87+77+56=662+406=404-52-224=883-81×8=359-344+444=201-(96-95)=360-65+142=241+(738-101)=793×3=338-(19+249)=743+(738-258)=447-393=423-58-165=377+26×5=484-184-121=258+(274-100)=246×4-358=598-81=100×5+203=144+(97-83)=399-(29+370)=481+(628-24)=132+63+743=354×2+290=373-197-154=738-(178+424)=303×3-499=250-13×2=880-(84+640)=241+26×2=425+309+230=480+990+319=112+48=433-403+145=267×(31-28)=338×(596-589)=458-(110+81)=320-281=207×2-341=94×(549-542)=230+(380-42)=17+438×2=694-(761-595)=3/6-1/6=87×(70-62)=970-134×6=957×(676-671)=294-(79+114)=397×4=80+67=65×6+368=177+369+190=167×2+48=92×6+207=395-166×2=239×(199-192)=197×4-86=64×(148-139)=531+769+205=159×(466-463)=395-49-68=184+263=350-229=378×2-374=45+341+143=325-116-153=346×2+765=参考答案344+438=782290+(132-102)=32037×3+336=447581×(647-640)=4067111+21×2=153335+278-466=1474/7-1/7=3/7363+(187-55)=495572×(287-282)=2860991-(141+126)=724828-87=741139×(417-412)=695890-(798+73)=19720-(48+174)=498213+114+126=453772-519+718=971351+(709-134)=92658×(30-21)=522364-(133+151)=80483-(154+12)=317987×7=690963×8=504142+504+270=916144×2=288930-432+67=565404+(169-114)=459197×(419-416)=591959-81-122=756362×2=724216×2=432641-(84+476)=81286+34-243=77412-(12+238)=162492-258+36=270520×6=3120375-(184+87)=104415+(791-229)=977154+(994-443)=70535+(419-146)=308432-273=159196+130=326981×(342-334)=7848270×3-276=534387-187-63=137891+682=1573521+(733-387)=867125+391+193=709810-(365+190)=255546-271=275852×9=7668777×5-943=2942436-296+485=62584+166+180=430241-(11+215)=15471×2-47=895582+219+97=898531+(932-572)=891480-80=400462-(743-609)=328186-(940-937)=183609×(667-659)=4872669×5-280=3065213+339+66=618647-453+443=63799+28=12767+16+388=471185-(437-355)=103964-102=862463-(298+75)=90420-(360-312)=37285×4-80=260136×7-174=77833×(201-196)=165155-52×2=5175×(670-663)=525210-27-156=27441-102-58=281354-273+75=156862+114-852=124485×2=970136+163-284=15127+(349-341)=135156×(452-449)=468290-198+142=23480+25×9=305818-79-310=429877-57×4=649751-32+784=1503658×5-615=267571+89×8=783285×(327-324)=855246-49=197323+(257-194)=386820-(810-85)=95376+(379-26)=729248-(423-191)=16615×7-153=415265+308+466=8394/9-3/9=1/9473-(438-285)=320280-(169+70)=41669-69×5=3242/4-1/4=1/4424-(205+98)=121888×3=2664726-(811-462)=377293-(469-258)=821/7+3/7=4/7350+(534-354)=530787-182-235=370255-(254-186)=187232+(286-103)=415305+17-196=126439+(780-589)=630578-50×5=328416+18-207=227314×2+96=724827-(741-236)=322714-72-241=401415+(263-202)=476889-389-414=86803-(338+127)=338674-578-47=4997+103-99=101399-(30+296)=73343-16×5=263129×(90-85)=645942-108×8=78442-(277-14)=179157×4+251=879823-120-402=301163+574-199=538349-115×3=4645-28+805=1422146+494=640178×4-92=620866×7-80=598256+(488-388)=156494-138=356673+35×3=778268×(111-104)=1876975-(466+34)=475124+229-178=175745+878-85=1538902-882+31=513/7+2/7=5/7593-145=448227+255=482401-(319+23)=59425-(191+178)=56410+(360-157)=613856-(838-616)=634335-233=102237+172-275=134558+(404-93)=869433+967-323=10772/6+3/6=5/6185+228=413146×3=438762-51-78=633903-166×3=405384-(102+183)=99593+807+389=1789999×(408-400)=799235-(494-459)=0130+353=483230+168+851=1249258×2+348=864794+274=1068285-(224+58)=3576-(410+94)=72639-(89+365)=18596+242-85=253494-222=272486×6-250=2666601+(643-380)=864178-23×5=63631+552=1183118+947-574=491945-642=303174×4=696101×(480-471)=909194-(882-720)=32552-335+473=690390-280-52=582/6-1/6=1/6356-28-169=159176×8=1408180-(343-266)=103480+315+125=920188×7=1316364+324=688123×8-609=37514+(302-152)=164501-377+936=1060896-(378+168)=35067+240=307187+334=521528×(214-210)=2112473-299+281=455952-465+98=585496-128×3=112918+228+977=2123482-117×3=131152+242=394360-104-37=219129-54×2=21320-213+343=450135×2+700=970195×2-378=12368-(180+26)=162204×2-166=242473-43×9=8623+(686-20)=689998-(669+310)=19419+23×4=51187×7+385=994897+(675-393)=1179406-304+246=348385-286+101=200299+205×2=709377×2=754580+842=1422296+59=355565-458-100=7474-(134+229)=111232+110-177=165440-203-106=131382-180×2=2298-16-71=11220×(81-72)=1980584-103×4=172554-50×5=304556-144=412200×3=600145-11=134309+33-208=134594-90=504104+149=25348×3=144332×2-495=1692/7-1/7=1/7703×8=5624857-71-271=515255+45=300741-262-426=53173+399+41=6133/5+2/5=1983-549=434252-42=2101/5+2/5=3/596-(467-376)=5690-(250+279)=161566+280=846109+391-471=29114×3-318=2491×7+796=14338/10-2/10=6/10785+614+291=1690800+(925-33)=1692183+163=346324×6-280=1664425+(606-341)=690846-(758-220)=308450-142-246=62928-805=123839+54+881=177445×9+309=714846-(351-179)=674236-(332-272)=17659+396+839=1294194+67-77=184136+(435-142)=429959+224-119=1064459-(488-158)=129906-209-81=616186+(428-31)=583657-508=149461-28×6=293443+602-204=841652-58×4=420134+235-126=243293-30×5=143109-60-46=3446-(277-226)=395236-52-43=14166-14×4=1046×3-14=124381×2=762202×(458-454)=8081/9+4/9=5/9975-178+940=1737448-443+317=322278-(53+89)=136305-154+119=270481-254=227955+378+613=1946244+49×4=440393×(980-974)=2358227-203=24478-197-252=29749+896-587=1058769+955-617=1107139+124-188=75819+332=1151292×3-129=747250+(963-300)=91337+373-138=272192×3-538=38405-19-171=215142+25×6=292122×4=488356-(182+84)=90190-28=162399-18=381240+560+714=1514424-49+25=400189+300+78=567407-(200-39)=246153-11-86=56119×5-488=107198×3=594236-66=170612×(710-707)=1836589-58×6=241966-(103+293)=570280+(151-41)=390270×(915-906)=2430497-10=487367-273-34=60390+46+398=834193+(287-64)=416217-217+365=365893+301+751=194519×8=15268-19+129=178450-225-84=141936-(842-424)=518456+22-253=225450-(461-43)=32192+186+232=610640+751-421=97092+24+602=71883-23=60485+(147-132)=500663-199=464480-228-236=1699×(343-340)=297241×2+268=750844-(625+137)=82836-204×2=428110+(278-181)=207481-(104+33)=344192×(487-484)=576237-37+100=300298-31×7=81166-14×5=96961-256×3=193422+73-342=153455+(312-142)=625418×9-538=3224122+368=490870-25×2=820398-223+725=900976-(325+372)=279324+33+269=62642+206=248249×4=996431-74=357235+188-265=158756-(166-101)=691404-220+24=208400-323-57=20721+423-610=53430×(313-310)=90415×(885-876)=3735822-(112-36)=746308-28×6=140109-15×2=79234×4=936142+197=339168-51×2=66376+15-140=251390-77×5=5271+619=890766-541-111=114834-(208+168)=4584/6-1/6=3/6399-345=54846×4-46=3338386+54-397=43515-372=143216+111=327660×6-552=3408461-94-327=4069×6-149=265132+430=562359+602+570=1531192×9-153=1575911-(611-320)=620980-643-272=65337+116-179=274307-36×8=19329-(203+64)=62236-154+409=491271+(898-774)=395311×2-369=25378×(418-412)=468371+74-212=233191+(314-168)=337357+133-314=176158×2-231=85298×(226-223)=894398+109×5=943498×8=3984477-150×3=2733×(148-145)=99332-(227-27)=132372-147-123=102328+61=389899-83-750=66161×5+452=1257648-(38+77)=533388-193=195469-46×9=55156×6=936314+177×2=668327×(262-256)=1962494-315+264=443134×5=670224+157=381481+(461-357)=585246+84-237=93335+927-560=702785-(829-312)=26819+350+318=687682-(994-976)=664424-26-142=256331×4=1324910-(689-325)=54612+404-313=103787+69×7=1270159×2=318351+49+124=524486-233-29=224391×2=782578-228-40=310382+(386-92)=676496×(875-866)=4464387-(315-200)=272339×9=3051255-(265-141)=131769-(574+153)=42188×3-139=425488-386+251=353957-350-169=438190×(675-671)=760104+273=377421-50×6=121468-(148+314)=6473+367+154=994929+150-928=151986-382=604211×6=126695×7=665340×(644-635)=3060533+236=76982+29=111388×2+95=871944-638-291=15404-(139+158)=107906+411-780=537535×9-510=4305700-30=670116+(774-767)=123172×(653-650)=516370+99×2=568400+(421-413)=408137+246-191=19299×(77-70)=693223×(100-97)=669867-26×4=76376×(132-124)=608178-(126-24)=76663+603=126698×5=490308×3-551=373213×4+749=160169×(134-127)=483224-72+286=438283×3=849232+77×2=386579+287-235=631128×(429-425)=51254×(276-269)=378858-615=243299-170=129346+668=1014241-123-83=353/5-1/5=2/535+40×2=115340-(166+26)=148440-220=220791×(535-526)=7119869-268=601578+(743-287)=1034233×9=2097151+670+198=101930×8=240958+820-603=1175210×6=1260373+207×3=994157+598+134=88971+909-513=467415×4-614=1046120×5+104=70456+475+51=582991-232-701=58212-24+232=420407-271=136420+227+660=130781+(702-636)=147180+321×2=82291×8+210=93884+79+901=1064175+359=534428-(963-568)=3385-18=67274+146-382=38624+(639-293)=970878+819+380=2077289+326+209=824293+772=1065552-252-117=183443-(46+35)=362350-22=328931-736-169=26298-30×3=208217×3+265=916999-212-364=42326×(391-382)=23423×4+287=379316-46=270280+42×9=658170-24×4=74406-11+360=755538-142×3=112468-41-414=134/7+2/7=6/7282-178=10464+262+174=500978×6=58684/8+2/8=6/8438-29-250=159192×3=576350-(201+115)=34698-33×3=599787-635=152422-(365-357)=414606-394=212723×(893-885)=578499+(666-447)=318942×4=3768152+52×2=256375-30×6=195382-93-280=9380-257+178=3013/7+4/7=175-(22+28)=2571+40×3=19163+302=36538×3+51=165536-(887-380)=29170+(293-119)=344119-(266-250)=10394+(881-571)=404239+11×3=272675-(99+29)=54718+386+462=866256+233=489826-43×4=654113-51+898=960472-41×4=308872-730-30=112407-(819-486)=74469+(265-95)=639386-(20+365)=1888-166-528=194777+962+471=2210376-91+87=372180+27+127=334340-112×3=4263×2-257=269178+29+192=39917×6=102151×5-555=200853×(649-641)=6824388+672+757=1817428×6=2568801-(354-238)=6851/6+4/6=5/6413-100-284=29240×3-298=422248-(87+70)=91137+298+483=918164-138+428=454443×4-517=1255261+777-683=355824-113+254=965107×5-388=147942-747+388=58388×8=704236-15×7=13164-52=12964-(817-515)=662459-(408-185)=236381-(135+10)=236137+154×2=445823-724+944=1043748-335+581=994112×5+254=814804-399=405396-285+242=353270-15=255324-198=126504×6-195=2829252-122+21=151325-(401-98)=22155×3=465234×2=468144+272=416595+971+130=1696391+417-440=368577×8=4616440-(285-18)=173240+374=614649×8=5192942×6=5652363×4-194=125817×8+347=483256-185+270=341918-473+167=612953+26×2=1005264-19×5=169787-680+981=1088156-65=911/8+5/8=6/8113+158=271953+422-572=803491×8-336=359232×9+809=1097727-552+209=384492-22×3=426404×2=80863×(449-444)=315308+551-300=559172×3+80=5961/3+2/3=1839-260×2=319226+225=451277+71=348414-181=23333×2+113=179907-178-706=23747-437=310225-110=115336-35×9=21533-299+479=713132×(255-248)=924132-16+103=219499×2-347=651222-(155-122)=189505+784-81=1208275-(72+183)=20445+494+599=1538813-(844-533)=502831-69+920=1682970-576+228=62292+180=272606+708-126=1188465-(389-38)=114726-(238-217)=705352×7=2464996-972+146=17062×8=496440-29×6=266706×(944-940)=2824447+137=584328+750-291=787849-56=793382-167+575=790350+27×9=593214+91-250=55101×5+243=748988+782-812=958648+107+234=989560×6-436=292495×4-223=157145+458+222=825663+995-226=1432353-(492-366)=227115+885+406=1406140+803+302=1245211+(300-146)=365347+70×7=837766-(469+119)=178730-(62+661)=7317+(341-76)=5824/8-2/8=2/8678+929=160787+(62