三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦412+(473-63)=114×(438-433)=498-40=465×2+55=967+455-653=50+(371-133)=739-(55+433)=286-228+355=394-59×3=231-(205-182)=621-(253-80)=193+102-126=923+342-626=346-(284-72)=197+193=426+62×3=478-(40+119)=538-(243-125)=848-(194-135)=643×9-576=439-202=1/5+3/5=722-461-52=165-71+200=363+637-22=46+66=47+440-406=815-(262+435)=3/7+2/7=446+714=331×2+189=431-140×3=309-(333-274)=215×2-389=108×9+647=356-22×6=3/8+2/8=274×2-420=82+52+743=411+148=224-23×5=84×9+206=490-137-159=158-115+255=267-125+333=580+28×6=169-118=927-536=255+166-346=390+(575-403)=516+584=756×(351-342)=588+134=343+(418-369)=456-315=305+120=278+221-39=459-129-330=416×2+246=100+192+32=998-416-243=442-392=176+(651-367)=471-270=856-239-410=544×9=256-151+320=628-269-65=46×9=97+538=274×4-682=98+58=457+851-986=533-21×8=276-52×4=46×6+320=128-(254-218)=476-(250+24)=30+66=865-33×6=965+930=339-(294-128)=19×(192-188)=982+694-858=262-239+147=335×2=857-(171+583)=269×2+232=420-25-319=324+86×6=644-(654-460)=512-273+278=556+125×8=145+(382-303)=665+105×6=262+(497-95)=957×(353-350)=978-(991-637)=701-(176+489)=332-104×2=80+(242-90)=816+94×6=405-164+418=610-(748-568)=6/8+2/8=494-(488-285)=754-29=652+725+965=156×3=852-280=77×5+50=138+275-211=312×(77-74)=288-248+332=976+(759-691)=229×7-636=86+74×7=891-138-482=989-276+55=301-41×2=385-(73+22)=122-28+202=580-(12+104)=284×6=296+439=142-33=474-(278+78)=596-(193+81)=80+283=156+(658-296)=1/7+6/7=471-100×2=927-(156+169)=893+184×4=957-(613+333)=28×(16-12)=475-406-22=744-94×5=118+752+101=714-(512+191)=132×(420-414)=457+17×9=86-37=27×(221-212)=264-(75+67)=796-246×3=329×4-596=748×6-553=407×9-864=203+160=466+21×9=30×9+813=23+39×5=2/3-1/3=413×2-801=101×5-186=51+916+882=210+742-24=212×4=432-215-216=225×3+167=442-(448-387)=4/6-1/6=284×(203-200)=26×(677-674)=128×4=693-346=330+186+994=202×3=186-146+149=192×5+579=446-206-201=584+470-409=128+35+35=968-(176+16)=441-74=560-101-87=459-187-218=117×5=844×(467-462)=164+633=347-183-36=706+531-930=319-(424-303)=243-(82-11)=618-290=460-89-61=754-(998-417)=375-64×4=866-107-187=477-92×3=54+(456-295)=25×6+343=400+327=239×2-164=98+375-428=167+53×3=602+408-378=406-57×7=952-155-395=551-516+321=253-(218+29)=66×8=188-188+94=48-(224-181)=240+316=328-14×9=301+257+352=930+596+162=120×3-186=339+23-247=111-79+67=758-171+791=459-147=992-(319+112)=980+432-107=316+(790-473)=405-323+62=405+87-59=54×2=410-62×4=962-(103+712)=729-68×8=607×2=520×8-44=420-362+304=78×5-276=247-211=879-(818-28)=47×(58-52)=902-(949-941)=217-(171-20)=378+128+195=263×(64-61)=53+26=497-282-82=986+283=887×3-941=127+(227-150)=866-74-697=38+34=29×(469-463)=683-107-543=242-80×2=674+32+203=60+(531-509)=403-(416-68)=394×9=128×(271-266)=910×2=293+152+957=459-61=169-(172-160)=939-224+920=716-26-201=110×(309-304)=485-441+75=727-46×8=656-(863-812)=173×(32-29)=292-(545-421)=680×(165-157)=706-704+737=71+125=338-17=1/4+3/4=774+817-923=775+13×5=150-35×2=754-142×5=84+494+128=314+131=316-(325-103)=745×3-347=871+887+898=456+(790-324)=317×5-975=385-349=350-220-53=499-36×3=185+484=964×(855-852)=856-783=217-31×4=101+156-160=174×3-251=980+736+951=38+251+599=487×(427-420)=706×8-131=828-236-525=750-704+222=941+(931-153)=610-599=668-(320+58)=493-153×3=572+40+361=58×3+638=835-268-431=318-90+84=431-24×7=438-329-20=26+(819-577)=132×6=886×5-97=286×2+77=135+231×4=308+61=467-136=71+163=577+(374-332)=838+(426-77)=28×(125-118)=343-261+316=805-(920-798)=394+(397-293)=184×5=96×8=367-(28+292)=794-(681-293)=290-(243-105)=6/10-3/10=248-(719-585)=606×4=584+116=124×(83-80)=53×(72-68)=142×7-684=73+64=790-(71+696)=771×6-626=251+233=242-113+19=138×4+349=2/5+3/5=156×6-601=248+358+348=328+344+275=283+321-182=11+103-39=430+86×2=88×(150-144)=917-422×2=325-113-100=915-684-66=493-(90+232)=315-35-96=368+(357-141)=84×4+671=731+577-324=193+26+480=105+414=579+667=450×2-442=209+96×5=62×5=213+(804-244)=530-97-211=919+444-321=454-390=671-301=438×6-116=345+141-149=411+(351-109)=352×2-183=618×9=436×2=114+960+523=401×(980-971)=72+200=38×4+18=442-(161-76)=178+244-66=103×(125-122)=14+178+221=558+959+793=431-(400-175)=834-341=889-401×2=144×5-317=558-57+452=364-181=855+640-380=48+(61-18)=2/5-1/5=782+(964-711)=93-54+365=918-52+869=261+(727-203)=373-(327-270)=417-(392-89)=195×4=869-35×3=636+42×4=394×(278-273)=429+77=10×(325-316)=386+(320-24)=399-81-64=30+243+103=24×(339-331)=161+47+528=862-63×9=668+996-55=630-54×7=92+(471-63)=338-(159+89)=936-422-184=832×9-877=403-119×2=62+710+712=860×3-163=839×(435-432)=207+842+156=164-(56+51)=300-174-30=37×7=123×7-575=141+388+439=26×3=389-(17+328)=72×5-63=125×5=447-(52+265)=443+31-438=205+462-555=599×2=985-839=994+(708-132)=929-(882-790)=340-268+160=514×(986-979)=204+41=665-279=5/6-1/6=43+432-95=548-520+878=420×6=444-68=25+663+223=678-649=804-(701-604)=150×4-207=842+752=480-356+219=69×6=165-(395-287)=27×(299-291)=258×7-294=69+67=124×2=367-222=602-47×7=124×2+235=110×4=292+(408-225)=845-73×6=408-(251-188)=650-(409+108)=846×5=117×6+30=309×2=725+257+583=749-10×7=1/8+4/8=270-236+441=109×8-493=351-147=119+35×9=673-454=793-184+490=961-138-611=364-160-11=120+(267-248)=268+169=763+717-223=583-38×9=411+63-241=153×5-363=233-23×6=167×(387-382)=104×3+305=457-(415-113)=328+(207-82)=133+49×3=15×5+107=920-220+829=511-159×2=221+207=746+60×4=128+161+11=387+50-320=894-112+43=338-57×5=327-58+998=844×3-489=278-(510-493)=455×3=27+(152-28)=204+624+141=232-(84+46)=98+380+538=10×(488-485)=429-94-296=208×2=625-55=172-42×4=68×7-72=580×2-301=60×3=650+278=46×2+512=232×(485-481)=446×2-198=491-180-286=859-(59+340)=772-326-332=400-47×8=121×7-86=865-(88+583)=309-(437-362)=886×6=1/8+5/8=289+22+52=480-63=849-(834-674)=908×3-800=338-271=475-106+90=375+76-272=993+257=226+252-370=902+842+287=98×(108-99)=1/6+3/6=626-337=40×(479-470)=32×9=915-(348+547)=80×6+249=5/7-1/7=488-441-33=738-233×3=122×6-506=13+(941-680)=142+138×3=238×(30-27)=417-(399-90)=834-(445+388)=2/6-1/6=496-(228+130)=376-(467-198)=875×5=514-(458-402)=950-(985-130)=466-(238-43)=188-58-67=159+(400-184)=406-(192+158)=318-38×6=481-23×7=475-371+113=71+487×2=521+959-896=472-300-101=971-(949-267)=310×5=313-(53+105)=198+33-115=160+52=455-197=202+169+510=270×2=794-204+171=147+120=396-(168+142)=354×2-579=467-74-309=775-59×7=417+(637-215)=900×(183-175)=441-249+170=800×4-100=535×3=354+448+93=484-(396+78)=504×(301-292)=813-416-341=362×5=341+102=479-(292+41)=658+205+315=77+188-209=379+53+449=281-255+264=391+(935-707)=318-(15+185)=370+23-287=216+187=179×(441-438)=196+(356-278)=415-(295+91)=632×(290-282)=292+102×4=925-(712+112)=91+343+439=406-30×8=709+809+724=465-(399-98)=1/5+4/5=46-30=52+257+462=962-216-218=91+198=307+108-299=341×2-385=138×5=560×3=672+653-788=59×3+389=685×5=957+88-246=994+(891-446)=189+143-29=265+186=236+184-179=663×(432-425)=445-291=792×2-553=296-55+258=444+39×8=84-57+564=379-82+190=653+(880-416)=836-29+18=190-(139-97)=267-58×4=665-330-49=76+141=3/7-2/7=423×2-598=485+614=161+307-205=123×6=947-(73+54)=465-261=926+(878-317)=453×4-800=287-95-118=829-552+667=109+326=58+504+964=316-(29+266)=113+830+11=209+93=346×(621-618)=158×(207-201)=237×3-568=59-(46-17)=484+689-677=254-112×2=283+109=384-82-219=2/4-1/4=499+605+166=6/8-1/8=358-(446-421)=728×3=434×2-274=208-191=482+(233-191)=536-320=762-278-221=390+66-332=217+926+850=397+72-218=77×6+142=238+525-19=383+34×4=936-541+673=718+574+636=940×(390-382)=158+(250-192)=626-99-329=816-72×7=63×2+853=88×(70-67)=554-413-16=145×6-407=381+27-117=248×8-29=31×7=368-165=473-277=214×5=210×2=411-(181+94)=54+422-25=828-772+419=749+566+436=708+13+78=103+107×4=862-(942-756)=384×(390-381)=896-161=956+(948-917)=524+348+285=649+(999-48)=751×2-290=442+(869-39)=891-334×2=88+304=693×4-474=746-51+236=335-110×3=900-(324+130)=994-409-345=719+(455-97)=314×3-207=318+(436-277)=303-(71+222)=784-180×3=480-201=225×4+319=284+153=179×3=811-274+594=21×2=677-157-55=310-247-55=106-(322-321)=135+(429-60)=417-(256+25)=292+200=965-141×4=265-62-142=84×2=300+(476-241)=872+481-443=118-10=3/9-2/9=276+(477-298)=916-744+479=561-304=207-157-45=367+65=19×(26-18)=162×4=231+74×4=206-(36+27)=893-365-30=194+117=475×(513-509)=11×(171-165)=331-56×5=682-501+469=355+(474-190)=349+446+530=359-183-130=973-647+77=236×7=470×2+770=40×(185-176)=912-(241+80)=998-475=158-(113-14)=77-(256-208)=246×3+926=783-(31+599)=454-110-74=550-322=338-(90+171)=614-(336-85)=363-(156+77)=456-(124+84)=422+(459-435)=883-730=597×(575-571)=571+626+75=545+364=118×4-59=187×(401-392)=472-10=301+150-46=248+(532-376)=327-311=237+493+218=711+(862-143)=468+24+415=69+112=651-373=951-577+409=392-113+186=311×(809-801)=598-279-220=89+193-98=424+118+42=522-(311-207)=122×(477-472)=262+74=468+59×9=616+583=103+83×6=489-(77+167)=827-359=833×5=872-(938-615)=893-(231-197)=68×4+76=976-74-418=840×(542-535)=229+173=183-(118+54)=373-142=153×3-424=847+970+783=273+452-401=485-431+234=322+790+928=457-(157+129)=246-154+293=297+193-302=10+(385-220)=16+802+99=181+(497-458)=865-707=284+856+180=457-47×4=864×(478-470)=252-20+255=397×2-135=731-162=627×(39-33)=786×6=486-(193+90)=61+(380-54)=886-(151+636)=380+15×9=913-348×2=225+88+485=976×5=80+33-54=476-(215+141)=315-25-78=324-(46+103)=244+(316-129)=609×5-648=186+(471-300)=331-104=371-172×2=70-(226-223)=295×(914-908)=687-147+836=481×2=373-71×4=4/8-1/8=270+210-460=303-15×6=4/7+2/7=775+332-931=880-337×2=881-588+907=153×2-241=149×4=參考答案412+(473-63)=822114×(438-433)=570498-40=458465×2+55=985967+455-653=76950+(371-133)=288739-(55+433)=251286-228+355=413394-59×3=217231-(205-182)=208621-(253-80)=448193+102-126=169923+342-626=639346-(284-72)=134197+193=390426+62×3=612478-(40+119)=319538-(243-125)=420848-(194-135)=789643×9-576=5211439-202=2371/5+3/5=4/5722-461-52=209165-71+200=294363+637-22=97846+66=11247+440-406=81815-(262+435)=1183/7+2/7=5/7446+714=1160331×2+189=851431-140×3=11309-(333-274)=250215×2-389=41108×9+647=1619356-22×6=2243/8+2/8=5/8274×2-420=12882+52+743=877411+148=559224-23×5=10984×9+206=962490-137-159=194158-115+255=298267-125+333=475580+28×6=748169-118=51927-536=391255+166-346=75390+(575-403)=562516+584=1100756×(351-342)=6804588+134=722343+(418-369)=392456-315=141305+120=425278+221-39=460459-129-330=0416×2+246=1078100+192+32=324998-416-243=339442-392=50176+(651-367)=460471-270=201856-239-410=207544×9=4896256-151+320=425628-269-65=29446×9=41497+538=635274×4-682=41498+58=156457+851-986=322533-21×8=365276-52×4=6846×6+320=596128-(254-218)=92476-(250+24)=20230+66=96865-33×6=667965+930=1895339-(294-128)=17319×(192-188)=76982+694-858=818262-239+147=170335×2=670857-(171+583)=103269×2+232=770420-25-319=76324+86×6=840644-(654-460)=450512-273+278=517556+125×8=1556145+(382-303)=224665+105×6=1295262+(497-95)=664957×(353-350)=2871978-(991-637)=624701-(176+489)=36332-104×2=12480+(242-90)=232816+94×6=1380405-164+418=659610-(748-568)=4306/8+2/8=1494-(488-285)=291754-29=725652+725+965=2342156×3=468852-280=57277×5+50=435138+275-211=202312×(77-74)=936288-248+332=372976+(759-691)=1044229×7-636=96786+74×7=604891-138-482=271989-276+55=768301-41×2=219385-(73+22)=290122-28+202=296580-(12+104)=464284×6=1704296+439=735142-33=109474-(278+78)=118596-(193+81)=32280+283=363156+(658-296)=5181/7+6/7=1471-100×2=271927-(156+169)=602893+184×4=1629957-(613+333)=1128×(16-12)=112475-406-22=47744-94×5=274118+752+101=971714-(512+191)=11132×(420-414)=792457+17×9=61086-37=4927×(221-212)=243264-(75+67)=122796-246×3=58329×4-596=720748×6-553=3935407×9-864=2799203+160=363466+21×9=65530×9+813=108323+39×5=2182/3-1/3=1/3413×2-801=25101×5-186=31951+916+882=1849210+742-24=928212×4=848432-215-216=1225×3+167=842442-(448-387)=3814/6-1/6=3/6284×(203-200)=85226×(677-674)=78128×4=512693-346=347330+186+994=1510202×3=606186-146+149=189192×5+579=1539446-206-201=39584+470-409=645128+35+35=198968-(176+16)=776441-74=367560-101-87=372459-187-218=54117×5=585844×(467-462)=4220164+633=797347-183-36=128706+531-930=307319-(424-303)=198243-(82-11)=172618-290=328460-89-61=310754-(998-417)=173375-64×4=119866-107-187=572477-92×3=20154+(456-295)=21525×6+343=493400+327=727239×2-164=31498+375-428=45167+53×3=326602+408-378=632406-57×7=7952-155-395=402551-516+321=356253-(218+29)=666×8=528188-188+94=9448-(224-181)=5240+316=556328-14×9=202301+257+352=910930+596+162=1688120×3-186=174339+23-247=115111-79+67=99758-171+791=1378459-147=312992-(319+112)=561980+432-107=1305316+(790-473)=633405-323+62=144405+87-59=43354×2=108410-62×4=162962-(103+712)=147729-68×8=185607×2=1214520×8-44=4116420-362+304=36278×5-276=114247-211=36879-(818-28)=8947×(58-52)=282902-(949-941)=894217-(171-20)=66378+128+195=701263×(64-61)=78953+26=79497-282-82=133986+283=1269887×3-941=1720127+(227-150)=204866-74-697=9538+34=7229×(469-463)=174683-107-543=33242-80×2=82674+32+203=90960+(531-509)=82403-(416-68)=55394×9=3546128×(271-266)=640910×2=1820293+152+957=1402459-61=398169-(172-160)=157939-224+920=1635716-26-201=489110×(309-304)=550485-441+75=119727-46×8=359656-(863-812)=605173×(32-29)=519292-(545-421)=168680×(165-157)=5440706-704+737=73971+125=196338-17=3211/4+3/4=1774+817-923=668775+13×5=840150-35×2=80754-142×5=4484+494+128=706314+131=445316-(325-103)=94745×3-347=1888871+887+898=2656456+(790-324)=922317×5-975=610385-349=36350-220-53=77499-36×3=391185+484=669964×(855-852)=2892856-783=73217-31×4=93101+156-160=97174×3-251=271980+736+951=266738+251+599=888487×(427-420)=3409706×8-131=5517828-236-525=67750-704+222=268941+(931-153)=1719610-599=11668-(320+58)=290493-153×3=34572+40+361=97358×3+638=812835-268-431=136318-90+84=312431-24×7=263438-329-20=8926+(819-577)=268132×6=792886×5-97=4333286×2+77=649135+231×4=1059308+61=369467-136=33171+163=234577+(374-332)=619838+(426-77)=118728×(125-118)=196343-261+316=398805-(920-798)=683394+(397-293)=498184×5=92096×8=768367-(28+292)=47794-(681-293)=406290-(243-105)=1526/10-3/10=3/10248-(719-585)=114606×4=2424584+116=700124×(83-80)=37253×(72-68)=212142×7-684=31073+64=137790-(71+696)=23771×6-626=4000251+233=484242-113+19=148138×4+349=9012/5+3/5=1156×6-601=335248+358+348=954328+344+275=947283+321-182=42211+103-39=75430+86×2=60288×(150-144)=528917-422×2=73325-113-100=112915-684-66=165493-(90+232)=171315-35-96=184368+(357-141)=58484×4+671=1007731+577-324=984193+26+480=699105+414=519579+667=1246450×2-442=458209+96×5=68962×5=310213+(804-244)=773530-97-211=222919+444-321=1042454-390=64671-301=370438×6-116=2512345+141-149=337411+(351-109)=653352×2-183=521618×9=5562436×2=872114+960+523=1597401×(980-971)=360972+200=27238×4+18=170442-(161-76)=357178+244-66=356103×(125-122)=30914+178+221=413558+959+793=2310431-(400-175)=206834-341=493889-401×2=87144×5-317=403558-57+452=953364-181=183855+640-380=111548+(61-18)=912/5-1/5=1/5782+(964-711)=103593-54+365=404918-52+869=1735261+(727-203)=785373-(327-270)=316417-(392-89)=114195×4=780869-35×3=764636+42×4=804394×(278-273)=1970429+77=50610×(325-316)=90386+(320-24)=682399-81-64=25430+243+103=37624×(339-331)=192161+47+528=736862-63×9=295668+996-55=1609630-54×7=25292+(471-63)=500338-(159+89)=90936-422-184=330832×9-877=6611403-119×2=16562+710+712=1484860×3-163=2417839×(435-432)=2517207+842+156=1205164-(56+51)=57300-174-30=9637×7=259123×7-575=286141+388+439=96826×3=78389-(17+328)=4472×5-63=297125×5=625447-(52+265)=130443+31-438=36205+462-555=112599×2=1198985-839=146994+(708-132)=1570929-(882-790)=837340-268+160=232514×(986-979)=3598204+41=245665-279=3865/6-1/6=4/643+432-95=380548-520+878=906420×6=2520444-68=37625+663+223=911678-649=29804-(701-604)=707150×4-207=393842+752=1594480-356+219=34369×6=414165-(395-287)=5727×(299-291)=216258×7-294=151269+67=136124×2=248367-222=145602-47×7=273124×2+235=483110×4=440292+(408-225)=475845-73×6=407408-(251-188)=345650-(409+108)=133846×5=4230117×6+30=732309×2=618725+257+583=1565749-10×7=6791/8+4/8=5/8270-236+441=475109×8-493=379351-147=204119+35×9=434673-454=219793-184+490=1099961-138-611=212364-160-11=193120+(267-248)=139268+169=437763+717-223=1257583-38×9=241411+63-241=233153×5-363=402233-23×6=95167×(387-382)=835104×3+305=617457-(415-113)=155328+(207-82)=453133+49×3=28015×5+107=182920-220+829=1529511-159×2=193221+207=428746+60×4=986128+161+11=300387+50-320=117894-112+43=825338-57×5=53327-58+998=1267844×3-489=2043278-(510-493)=261455×3=136527+(152-28)=151204+624+141=969232-(84+46)=10298+380+538=101610×(488-485)=30429-94-296=39208×2=416625-55=570172-42×4=468×7-72=404580×2-301=85960×3=180650+278=92846×2+512=604232×(485-481)=928446×2-198=694491-180-286=25859-(59+340)=460772-326-332=114400-47×8=24121×7-86=761865-(88+583)=194309-(437-362)=234886×6=53161/8+5/8=6/8289+22+52=363480-63=417849-(834-674)=689908×3-800=1924338-271=67475-106+90=459375+76-272=179993+257=1250226+252-370=108902+842+287=203198×(108-99)=8821/6+3/6=4/6626-337=28940×(479-470)=36032×9=288915-(348+547)=2080×6+249=7295/7-1/7=4/7488-441-33=14738-233×3=39122×6-506=22613+(941-680)=274142+138×3=556238×(30-27)=714417-(399-90)=108834-(445+388)=12/6-1/6=1/6496-(228+130)=138376-(467-198)=107875×5=4375514-(458-402)=458950-(985-130)=95466-(238-43)=271188-58-67=63159+(400-184)=375406-(192+158)=56318-38×6=90481-23×7=320475-371+113=21771+487×2=1045521+959-896=584472-300-101=71971-(949-267)=289310×5=1550313-(53+105)=155198+33-115=116160+52=212455-197=258202+169+510=881270×2=540794-204+171=761147+120=267396-(168+142)=86354×2-579=129467-74-309=84775-59×7=362417+(637-215)=839900×(183-175)=7200441-249+170=362800×4-100=3100535×3=1605354+448+93=895484-(396+78)=10504×(301-292)=4536813-416-341=56362×5=1810341+102=443479-(292+41)=146658+205+315=117877+188-209=56379+53+449=881281-255+264=290391+(935-707)=619318-(15+185)=118370+23-287=106216+187=403179×(441-438)=537196+(356-278)=274415-(295+91)=29632×(290-282)=5056292+102×4=700925-(712+112)=10191+343+439=873406-30×8=166709+809+724=2242465-(399-98)=1641/5+4/5=146-30=1652+257+462=771962-216-218=52891+198=289307+108-299=116341×2-385=297138×5=690560×3=1680672+653-788=53759×3+389=566685×5=3425957+88-246=799994+(891-446)=1439189+143-29=303265+186=451236+184-179=241663×(432-425)=4641445-291=154792×2-553=1031296-55+258=499444+39×8=75684-57+564=591379-82+190=487653+(880-416)=1117836-29+18=825190-(139-97)=148267-58×4=35665-330-49=28676+141=2173/7-2/7=1/7423×2-598=248485+614=1099161+307-205=263123×6=738947-(73+54)=820465-261=204926+(878-317)=1487453×4-800=1012287-95-118=74829-552+667=944109+326=43558+504+964=1526316-(29+266)=21113+830+11=954209+93=302346×(621-618)=1038158×(207-201)=948237×3-568=14359-(46-17)=30484+689-677=496254-112×2=30283+109=392384-82-219=832/4-1/4=1/4499+605+166=12706/8-1/8=5/8358-(446-421)=333728×3=2184434×2-274=594208-191=17482+(233-191)=524536-320=216762-278-221=263390+66-332=124217+926+850=1993397+72-218=25177×6+142=604238+525-19=744383+34×4=519936-541+673=1068718+574+636=1928940×(390-382)=7520158+(250-192)=216626-99-329=198816-72×7=31263×2+853=97988×(70-67)=264554-413-16=125145×6-407=463381+27-117=291248×8-29=195531×7=217368-165=203473-277=196214×5=1070210×2=420411-(181+94)=13654+422-25=451828-772+419=475749+566+436=1751708+13+78=799103+107×4=531862-(942-756)=676384×(390-381)=3456896-161=735956+(948-917)=987524+348+285=1157649+(999-48)=1600751×2-290=1212442+(869-39)=1272891-334×2=22388+304=392693×4-474=