三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦

三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦282-245=673+41-525=887+120×8=388-327=725-327=135+131=372+187=539×3-569=153-(76-47)=317×3=88×9=910-340=3/7-2/7=564-27+110=134+190-84=868-(282-149)=4/7-3/7=196-85×2=396-59=406+234+341=290+48×4=399-(315-148)=30+(320-40)=875+612-582=194×5=651-(47+177)=867-270×2=253-(73+131)=454+(210-149)=11+(907-331)=251+177=601×(675-667)=343+151=242×2=834-(89-82)=912+671+977=493-206=910-776+116=406×2-749=382+116×2=397+(450-261)=96×9=499-57×8=53×6-285=319-(10+24)=668×6-385=686-164=231×7-945=447-94-124=352+(258-253)=792-25=70+92-123=230-42×5=292-(291-173)=346-64×4=861-(247+364)=687×(837-832)=33+24+150=178-131+387=800×(54-51)=479-162=353-12×8=251×3+514=762+739+631=489-51-29=345+(430-114)=314+117×2=424-(175+208)=336-106-149=630-17×5=884-274=285×3-310=999-(656+243)=955+870+125=599-238=456-(139-115)=524-32=573×4-477=624+649+204=4/8-3/8=446+418+71=709×(233-228)=267+11+291=842-310×2=92×(456-450)=205-201+292=91+169=51+(104-74)=535+488-29=203+142-53=557+(801-460)=318-129+661=492-(13+383)=519-50×8=637×(108-99)=491-45-351=112+317+398=499-470+417=385-(257+68)=498-144+82=373-(462-421)=478-54×7=112×(73-70)=208×2+402=219-207+116=346+102=107+224=197+961+236=347+145×2=910-(478+220)=240+(270-138)=786-165×3=257-(413-199)=531×(886-882)=207+(743-410)=138×(18-15)=967-296+317=160-149=302-100+203=362-210+168=403+116+153=423-205×2=882+365-238=379-(171-165)=908×5=86×(136-127)=698+330=140+64×7=94×3=25×3=190-42=407×2+808=244-134=774-274+83=622-151-326=349+107-66=782+(265-223)=221-101+329=438-71=526-(87+394)=101+12+494=539×8=84×3+556=861-(558-490)=851-(248+190)=497×6-175=353+144=726×(929-925)=155+241-12=118×6-355=214×3+725=547-494=67+(188-146)=763×4-414=409-(72+21)=877-(147+234)=396-219=600-251=495-(182-101)=355+367+836=3/8-2/8=259+79+43=242-48×4=35-(362-343)=987-218-130=199×6-41=61×4+485=387×2+808=451+444×2=374-(204+77)=239+(528-158)=433+781=277-53-212=143+(372-22)=341+394=389-35×8=698-45×8=3/6-1/6=124+376-257=519+168+329=18+59=875-96-31=177+235+315=369-18+23=150+41=421×(511-506)=12×4+443=2/8-1/8=123×(390-387)=409+(497-310)=477-192=167×5=492-294+40=250+117=80×9+80=912-13=394-(19+222)=778-(544+16)=860-(403+62)=491-(458-22)=459-75×5=298+173=869-(601-430)=942+79-985=333+746=421-214-104=285-139-123=292-60×2=902-(296-170)=931+849+669=909-(62+708)=734×(429-421)=1/7+2/7=374+(262-76)=312×2-422=38+231+35=383+(939-676)=66×8+145=114+81+409=334-309+953=418+59-290=195+354=901-731=193×4=193+(795-487)=390-375=973+854+456=457+(197-109)=395×(974-966)=78×4+543=885-300-371=238-36×6=812-34=398-(39+213)=10×9=280+(413-268)=968-(344+221)=198×2+872=1/5+2/5=642×(530-523)=30-(73-53)=395+443=96×(207-201)=895×8-82=119×5=1/8+4/8=307×2=413-92×3=438-(163+182)=94-76=790×4=304+306×2=419+(920-623)=28+18-36=381-26×6=37+(316-308)=77+817-259=112×4+25=11+18×5=249+(214-208)=631+(839-175)=593+471+337=172+450+223=668+705+454=585-39×7=220×(458-454)=185×4-351=870×5=225+(205-142)=441+(378-30)=75+435+408=160×6-209=4/8+3/8=4/9+3/9=917-655-202=595-70-304=330-(47+233)=101+266=259+545-12=205×4+376=584+157=135-(570-517)=545+230=108×(314-308)=295-(390-306)=130+76+105=860-77=139×3=376-266-101=500-330+822=438-128×2=706+136×6=396+449+376=436-37-361=134+121=62+49+119=198+175-199=269-11=117+100=342+154=122-(255-180)=691-89×5=271+805-359=24×6=93-25=334+417=431-142-137=417-(266+139)=102+390×2=254-(201-160)=599-396+298=146×6-817=291-47-172=943-(384+380)=825-39×3=114×7-569=233-(355-242)=440-150-70=357-18-251=128×3=433-73-199=819-291=660+413-619=303+67+195=320+182=312+71×6=379-170=393-10=258×8=80+400-459=952-(375-74)=45+714+776=88×8-466=351-(967-729)=4/8-1/8=373+149+635=68×7=469-175-55=18+319+90=483+331+56=1/9+5/9=715+345-469=665×5=148×7-61=458-274+54=690-(591-373)=285-(415-286)=290-(233-163)=451-(211+53)=604-284-313=556×(326-320)=290×3-516=112×7-196=46×(202-197)=146-(256-164)=121×7+317=432-(63+90)=428-(83-57)=769+157=452×(212-206)=203+(218-172)=91×(132-128)=932-464×2=353×7-854=395-246+32=70+241+651=209-189-18=168+(268-11)=68×9-91=128×9=415-(819-722)=107+337=297+93+110=96+119+128=70×(451-444)=380+690-25=474+(906-50)=798-300-193=357+405-640=537+908-153=138+267=41×6-139=125×7-284=391×6-394=718-177×4=44×5=220×2-400=420+443+50=371-223+344=411-69-84=475+169+226=851-495+357=196×8=67+263=267+(235-104)=490+285-627=231+41=441-90×3=157×2=711×8-730=435×(611-604)=461-416=455-225-20=754+457-159=409-162×2=108×5=3/7-1/7=444-45×5=92×5-160=871-637=143+296=925-354-27=951+571=265+157=873-(828-820)=792-59+310=288-130-67=188+302-472=750+439+245=103×(237-230)=829×2-909=754-(29+238)=2/9+6/9=867+324+140=426-(53+35)=293-(338-231)=125+312-315=154-101=274×(123-120)=492-17×9=89+473=617-505=278×8-773=120×9-916=752-65×7=499-(227-158)=178-19×7=387×9-389=368+799=479-55-334=233×4+30=242+501=865-96×6=35+621+230=885-47×6=3/6+2/6=920-246+756=453+232×2=29+70×8=339-(45+167)=323+398-629=429×2=488-19-114=447-(99+124)=302+67+609=153×(249-246)=715×3-321=287×6=467-28×7=466+624+732=12+(431-374)=11+141+647=936+892-735=455-31×7=116+22=131+81=79×8=528-58-293=428-(280+46)=502+483+510=712-59×5=311+144-413=913×(211-206)=494×2-133=640×3=818-(411+139)=379-177-182=316×3=273+203-213=86×2+239=227×6=973-63-495=697×2-143=283+106=161×4-556=567-(498+12)=938-179+738=923-156-653=131×6+67=721+580=598-(256+313)=289+(636-417)=433-(113+128)=436-386+406=750+613-186=656+936+739=872×2=578-(198+317)=282×2-175=335-15×9=638-311-282=3/4-1/4=759+180=34×6=709-420+95=1/5+4/5=226-196=437×2+808=258×3+460=140×7-15=935-908=837-326=174+297-363=742-66-334=642-(12+256)=104×(288-281)=61×2+111=821-(155+115)=83×(308-305)=189-(341-219)=954-403-425=970-22×8=87×9-287=975-120×3=441-33×4=297+107-36=297×6=299-39=394+131+449=268+217-183=160-86+396=514-(621-401)=312+(693-22)=522×(71-67)=150+73×6=22×(723-716)=72×(335-327)=584+238=879-(761-626)=413-95-246=67×(183-174)=798-(337-324)=478+(905-140)=418-173+238=904+(176-127)=544-342=307-(917-889)=728-563-78=167-47=411-14×3=2/5+3/5=366-150=115+10+543=460-107=776+799-287=401-65-277=196×(28-24)=18×4+359=419-77×5=788×3-352=798-(688-408)=52+144×4=693×3-794=727+78+183=373-49+85=144-48+175=130+(599-330)=346-(842-496)=604-319-84=305-(332-184)=351×2-237=496+(464-304)=126+(174-157)=666+(309-276)=735×4=581-13×6=197+134=814-311=123×6-296=399×(179-171)=381-303=556+609-134=122+311-114=992+(891-585)=129-35=837-678+30=302-148+244=137×(52-46)=282×3=402-(318+36)=107+110×2=99+447=290-124×2=77+157=458-250+169=110×5+282=105×(695-692)=50×9-22=210-199+77=430×2=238×4-258=241-(466-465)=882-509-304=173+786+557=269-(389-158)=161+504=425-39-338=368×(559-555)=861-81×4=90+450=463+64-41=88-86+471=480-(82+140)=429+17-245=399-395+356=78-38+614=588-(883-426)=251+22-188=601-(964-476)=145+266=73×9+804=809+545+190=31×6-132=90+142×5=193×5-77=308-(451-253)=749-82×7=102+(821-523)=831×6=26+(414-356)=399+380=85+176×5=263+717+328=754-558+206=243-79×3=372×4-887=1/6+2/6=786-282+905=313×3-358=236×3+67=441-404+401=406-304+262=299×2-533=384-190+93=466-(91+70)=181+178-233=363×7=320-16-171=684-673+864=877-123+976=216+(834-20)=380+23×2=485-260+228=446-279-114=203+(485-367)=566-103-420=912+152-220=95×(441-434)=690+272+40=278+46-118=391+38-235=582-366-30=987+867-952=430-20×4=55×(106-100)=448+(487-121)=597+809=275-(180+38)=944-442-188=93×(32-26)=5/8-2/8=704-(175+411)=193+414+208=723-(952-377)=137×7=625-(305-254)=518×3=694-(235+352)=525-440+600=447-134-102=327-(456-405)=750-165=824+857-401=531-(36+70)=222+233×3=22×(159-150)=965-(796-645)=318+485×2=201+26×9=394×5-540=476-(126+335)=196+233-204=481×7-800=278-50×3=882-406-35=953-(86+284)=178×5-365=850+244+985=156+143-163=508+(869-505)=310-129×2=906×8=921-(153+241)=59×9=233+68-197=306-(241-235)=27+(151-110)=344-(929-679)=30×(105-101)=370+51×2=333-71-172=459+(897-659)=429-46=879-700-75=364×4=128+157=369-(36+154)=488-50=616-473+946=27×(486-477)=762-489+323=500-160=498-(89+298)=136×(92-86)=259-(115+93)=806-317+99=104+263=193+314=467+82=162×(696-692)=821+(938-754)=126×5+650=362+330-205=272+57×6=176-121=179+199=476+631-722=216×3+255=163+110=887-(809-552)=547-46×4=293×3=588-53-231=471+688+147=315+(295-186)=426-114-147=925-72-154=713-(298+394)=340+30-90=64×2=842×(543-540)=2/7+4/7=471-28×8=949-712+508=90×(927-921)=819×6=390×7=655-(267+347)=991×(545-542)=27×7-153=76+52=195×5-331=563×6=623-(517-273)=610+152-161=326+(377-108)=210+14×5=614-178-151=254×3+209=194+996+777=477-(342-161)=654-131=500-394=225×8=344-(199+37)=17+89×3=126+462+361=318+442+568=665-207=645+390=243-(71-69)=441×2=119+579+162=219×(253-249)=235-93+116=454-308+113=65×9=112×(97-93)=166-163+389=257-88=2/4-1/4=192+12×6=336+466-50=367-71×2=246×4=470-455=368-157-186=366-(277+47)=244+142-292=244-38×4=421-(35+15)=491-459+514=425+(185-159)=216×5=541-(449-192)=398-353+951=623-48=69×(243-240)=681-(319-24)=194×9-776=251+159×4=249-146=324-79=25×4=766×(220-215)=142+(66-35)=648+(678-38)=800×(600-592)=114+363-467=117×7=49+(436-273)=213+(401-118)=217-55+283=128×5+188=79×8-556=331-(468-342)=277-(246-72)=478-227=831-38×8=113×4+393=82+352=116×3=551-213-326=564+(461-54)=316-240+88=462-10-251=278+(440-101)=242-52×2=2/6-1/6=62+(445-195)=475-(476-415)=368+(732-318)=479-(61+313)=595×(742-737)=186+236-278=756+564-206=189×(903-899)=350×2-157=38+302+160=920-120+341=484-28×4=163-46×2=751×(20-14)=328-246+135=294+59-106=441-(33+64)=529-98×3=471-(133+75)=258+52×7=799×6-253=646×(609-600)=421-27-177=834-(675+51)=764×3=參考答案282-245=37673+41-525=189887+120×8=1847388-327=61725-327=398135+131=266372+187=559539×3-569=1048153-(76-47)=124317×3=95188×9=792910-340=5703/7-2/7=1/7564-27+110=647134+190-84=240868-(282-149)=7354/7-3/7=1/7196-85×2=26396-59=337406+234+341=981290+48×4=482399-(315-148)=23230+(320-40)=310875+612-582=905194×5=970651-(47+177)=427867-270×2=327253-(73+131)=49454+(210-149)=51511+(907-331)=587251+177=428601×(675-667)=4808343+151=494242×2=484834-(89-82)=827912+671+977=2560493-206=287910-776+116=250406×2-749=63382+116×2=614397+(450-261)=58696×9=864499-57×8=4353×6-285=33319-(10+24)=285668×6-385=3623686-164=522231×7-945=672447-94-124=229352+(258-253)=357792-25=76770+92-123=39230-42×5=20292-(291-173)=174346-64×4=90861-(247+364)=250687×(837-832)=343533+24+150=207178-131+387=434800×(54-51)=2400479-162=317353-12×8=257251×3+514=1267762+739+631=2132489-51-29=409345+(430-114)=661314+117×2=548424-(175+208)=41336-106-149=81630-17×5=545884-274=610285×3-310=545999-(656+243)=100955+870+125=1950599-238=361456-(139-115)=432524-32=492573×4-477=1815624+649+204=14774/8-3/8=1/8446+418+71=935709×(233-228)=3545267+11+291=569842-310×2=22292×(456-450)=552205-201+292=29691+169=26051+(104-74)=81535+488-29=994203+142-53=292557+(801-460)=898318-129+661=850492-(13+383)=96519-50×8=119637×(108-99)=5733491-45-351=95112+317+398=827499-470+417=446385-(257+68)=60498-144+82=436373-(462-421)=332478-54×7=100112×(73-70)=336208×2+402=818219-207+116=128346+102=448107+224=331197+961+236=1394347+145×2=637910-(478+220)=212240+(270-138)=372786-165×3=291257-(413-199)=43531×(886-882)=2124207+(743-410)=540138×(18-15)=414967-296+317=988160-149=11302-100+203=405362-210+168=320403+116+153=672423-205×2=13882+365-238=1009379-(171-165)=373908×5=454086×(136-127)=774698+330=1028140+64×7=58894×3=28225×3=75190-42=148407×2+808=1622244-134=110774-274+83=583622-151-326=145349+107-66=390782+(265-223)=824221-101+329=449438-71=367526-(87+394)=45101+12+494=607539×8=431284×3+556=808861-(558-490)=793851-(248+190)=413497×6-175=2807353+144=497726×(929-925)=2904155+241-12=384118×6-355=353214×3+725=1367547-494=5367+(188-146)=109763×4-414=2638409-(72+21)=316877-(147+234)=496396-219=177600-251=349495-(182-101)=414355+367+836=15583/8-2/8=1/8259+79+43=381242-48×4=5035-(362-343)=16987-218-130=639199×6-41=115361×4+485=729387×2+808=1582451+444×2=1339374-(204+77)=93239+(528-158)=609433+781=1214277-53-212=12143+(372-22)=493341+394=735389-35×8=109698-45×8=3383/6-1/6=2/6124+376-257=243519+168+329=101618+59=77875-96-31=748177+235+315=727369-18+23=374150+41=191421×(511-506)=210512×4+443=4912/8-1/8=1/8123×(390-387)=369409+(497-310)=596477-192=285167×5=835492-294+40=238250+117=36780×9+80=800912-13=899394-(19+222)=153778-(544+16)=218860-(403+62)=395491-(458-22)=55459-75×5=84298+173=471869-(601-430)=698942+79-985=36333+746=1079421-214-104=103285-139-123=23292-60×2=172902-(296-170)=776931+849+669=2449909-(62+708)=139734×(429-421)=58721/7+2/7=3/7374+(262-76)=560312×2-422=20238+231+35=304383+(939-676)=64666×8+145=673114+81+409=604334-309+953=978418+59-290=187195+354=549901-731=170193×4=772193+(795-487)=501390-375=15973+854+456=2283457+(197-109)=545395×(974-966)=316078×4+543=855885-300-371=214238-36×6=22812-34=778398-(39+213)=14610×9=90280+(413-268)=425968-(344+221)=403198×2+872=12681/5+2/5=3/5642×(530-523)=449430-(73-53)=10395+443=83896×(207-201)=576895×8-82=7078119×5=5951/8+4/8=5/8307×2=614413-92×3=137438-(163+182)=9394-76=18790×4=3160304+306×2=916419+(920-623)=71628+18-36=10381-26×6=22537+(316-308)=4577+817-259=635112×4+25=47311+18×5=101249+(214-208)=255631+(839-175)=1295593+471+337=1401172+450+223=845668+705+454=1827585-39×7=312220×(458-454)=880185×4-351=389870×5=4350225+(205-142)=288441+(378-30)=78975+435+408=918160×6-209=7514/8+3/8=7/84/9+3/9=7/9917-655-202=60595-70-304=221330-(47+233)=50101+266=367259+545-12=792205×4+376=1196584+157=741135-(570-517)=82545+230=775108×(314-308)=648295-(390-306)=211130+76+105=311860-77=783139×3=417376-266-101=9500-330+822=992438-128×2=182706+136×6=1522396+449+376=1221436-37-361=38134+121=25562+49+119=230198+175-199=174269-11=258117+100=217342+154=496122-(255-180)=47691-89×5=246271+805-359=71724×6=14493-25=68334+417=751431-142-137=152417-(266+139)=12102+390×2=882254-(201-160)=213599-396+298=501146×6-817=59291-47-172=72943-(384+380)=179825-39×3=708114×7-569=229233-(355-242)=120440-150-70=220357-18-251=88128×3=384433-73-199=161819-291=528660+413-619=454303+67+195=565320+182=502312+71×6=738379-170=209393-10=383258×8=206480+400-459=21952-(375-74)=65145+714+776=153588×8-466=238351-(967-729)=1134/8-1/8=3/8373+149+635=115768×7=476469-175-55=23918+319+90=427483+331+56=8701/9+5/9=6/9715+345-469=591665×5=3325148×7-61=975458-274+54=238690-(591-373)=472285-(415-286)=156290-(233-163)=220451-(211+53)=187604-284-313=7556×(326-320)=3336290×3-516=354112×7-196=58846×(202-197)=230146-(256-164)=54121×7+317=1164432-(63+90)=279428-(83-57)=402769+157=926452×(212-206)=2712203+(218-172)=24991×(132-128)=364932-464×2=4353×7-854=1617395-246+32=18170+241+651=962209-189-18=2168+(268-11)=42568×9-91=521128×9=1152415-(819-722)=318107+337=444297+93+110=50096+119+128=34370×(451-444)=490380+690-25=1045474+(906-50)=1330798-300-193=305357+405-640=122537+908-153=1292138+267=40541×6-139=107125×7-284=591391×6-394=1952718-177×4=1044×5=220220×2-400=40420+443+50=913371-223+344=492411-69-84=258475+169+226=870851-495+357=713196×8=156867+263=330267+(235-104)=398490+285-627=148231+41=272441-90×3=171157×2=314711×8-730=4958435×(611-604)=3045461-416=45455-225-20=210754+457-159=1052409-162×2=85108×5=5403/7-1/7=2/7444-45×5=21992×5-160=300871-637=234143+296=439925-354-27=544951+571=1522265+157=422873-(828-820)=865792-59+310=1043288-130-67=91188+302-472=18750+439+245=1434103×(237-230)=721829×2-909=749754-(29+238)=4872/9+6/9=8/9867+324+140=1331426-(53+35)=338293-(338-231)=186125+312-315=122154-101=53274×(123-120)=822492-17×9=33989+473=562617-505=112278×8-773=1451120×9-916=164752-65×7=297499-(227-158)=430178-19×7=45387×9-389=3094368+799=1167479-55-334=90233×4+30=962242+501=743865-96×6=28935+621+230=886885-47×6=6033/6+2/6=5/6920-246+756=1430453+232×2=91729+70×8=589339-(45+167)=127323+398-629=92429×2=858488-19-114=355447-(99+124)=224302+67+609=978153×(249-246)=459715×3-321=1824287×6=1722467-28×7=271466+624+732=182212+(431-374)=6911+141+647=799936+892-735=1093455-31×7=238116+22=138131+81=21279×8=632528-58-293=177428-(280+46)=102502+483+510=1495712-59×5=417311+144-413=42913×(211-206)=4565494×2-133=855640×3=1920818-(411+139)=268379-177-182=20316×3=948273+203-213=26386×2+239=411227×6=1362973-63-495=415697×2-143=1251283+106=389161×4-556=88567-(498+12)=57938-179+738=1497923-156-653=114131×6+67=853721+580=1301598-(256+313)=29289+(636-417)=508433-(113+128)=192436-386+406=456750+613-186=1177656+936+739=2331872×2=1744578-(198+317)=63282×2-175=389335-15×9=200638-311-282=453/4-1/4=2/4759+180=93934×6=204709-420+95=3841/5+4/5=1226-196=30437×2+808=1682258×3+460=1234140×7-15=965935-908=27837-326=511174+297-363=108742-66-334=342642-(12+256)=374104×(288-281)=72861×2+111=233821-(155+115)=55183×(308-305)=249189-(341-219)=67954-403-425=126970-22×8=79487×9-287=496975-120×3=615441-33×4=309297+107-36=368297×6=1782299-39=260394+131+449=974268+217-183=302160-86+396=470514-(621-401)=294312+(693-22)=983522×(71-67)=2088150+73×6=58822×(723-716)=15472×(335-327)=576584+238=822879-(761-626)=744413-95-246=7267×(183-174)=603798-(337-324)=785478+(905-140)=1243418-173+238=483904+(176-127)=953544-342=202307-(917-889)=279728-563-78=87167-47=120411-14×3=3692/5+3/5=1366-150=216115+10+543=668460-107=353776+799-287=1288401-65-277=59196×(28-24)=78418×4+359=431419-77×5=34788×3-352=2012798-(688-408)=51852+144×4=628693×3-794=1285727+78+183=988373-49+85=409144-48+175=271130+(599-330)=399346-(842-496)=0604-319-84=201305-(332-184)=157351×2-237=465496+(464-304)=656126+(174-157)=143666+(309-276)=699735×4=2940581-13×6=503197+134=331814-311=503123×6-296=442399×(179-171)=3192381-303=78556+609-134=1031122+311-114=319992+(891-585)=1298129-35=94837-678+30=189302-148+244=398137×(52-46)=822282×3=846402-(318+36)=48107+110×2=32799+447=546290-124×2=4277+157=234458-250+169=377110×5+282=832105×(695-692)=31550×9-22=428210-199+77=88430×2=860238×4-258=694241-(466-465)=240882-509-304=69173+786+557=1516269-(389-158)=38161+504=665425-39-338=48368×(559-555)=1472861-81×4=53790+450=540463+64-41=48688-86+471=473480-(82+140)=258429+17-245=201399-395+356=36078-38+614=654588-(883-426)=131251+22-188=85601-(964-476)=113145+266=41173×9+804=1461809+545+190=154431×6-132=5490+142×5=800193×5-77=888308-(451-253)=110749-82×7=175102+(821-523)=400831×6=498626+(414-356)=84399+380=77985+176×5=965263+717+328=1308754-558+206=402243-79×3=6372×4-887=6011/6+2/6=3/6786-282+905=1409313×3-358=581236×3+67=775441-404+401=438406-304+262=364299×2-533=65384-190+93=287466-(91+70)=305181+178-233=126363×7=2541320-16-171=133684-673+864=875877-123+976=1730216+(834-20)=1030380+23×2=426485-260+228=453446-279-114=53203+(485-367)=321566-103-420=43912+152-220=84495×(441-434)=665690+272+40=1002278+46-118=206391+38-235=194582-366-30=186987+867-952=902430-20×4=35055×(106-100)=330448+(487-121)=814597+809=1406275-(180+38)=57944-442-188=31493×(32-26)=5585/8-2/8=3/8704-(175+411)=118193+414+208=815723-(952-377)=148137×7=959625-(305-254)=574518×3=1554694-(235+352)=107525-440+600=685447-134-102=211327-(456-405)=276750-165=585824+857-401=1280531-(36+70)=425222+233×3=92122×(159-150)=198965-(796-645)=814318+485×2=1288201+26×9=435394×5-540=1430476-(126+335)=15196+233-204=225481×7-800=2567278-50×3=128882-406-35=441953-(86+284)=583178×5-365=525850+244+985=2079156+143-163=136508+(869-505)=872310-129×2=52906×8=7248921-(153+241)=52759×9=531233+68-197=104306-(241-235)=30027+(151-110)=68344-(929-679)=9430×(105-101)=120370+51×2=472333-71-1