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113-109+242=371+(360-46)=654-(378+263)=47+25=321+(985-538)=373-(259-167)=291-152=453-(51+365)=315-13-20=134+(500-392)=919+637=112×5=846+(942-688)=494-493+221=976×(392-383)=299-(172+21)=88+137=234-(766-695)=839+226×2=409-46-228=665×3=394-202=722-(185+233)=4/9-2/9=383×2-316=269+(915-797)=70-(86-81)=95×6=49×(31-24)=290-218+196=880+62-607=901+796+534=329+25×6=507+204=207×3-451=501+33+221=185+169=467-118×3=234×(108-105)=339-(238+63)=352-(206+95)=314-302+556=742-(372-240)=145+(172-33)=18×(327-318)=685-375=598-46=700-325+113=279+284=335-170-72=109×(229-223)=37×8+162=50+(206-51)=595-(326+132)=702-206×3=139-131+299=456-(208+242)=46×(412-404)=424-(406-71)=452-(154+29)=165+452×2=20×(243-239)=669+11+80=816-(376+354)=943-(682-53)=357+60×7=439-260-151=344+119×5=2/5-1/5=950-672+956=485-(116+116)=900-482+320=390-22×4=400-156=436-185+137=39×(348-339)=309-276=903-334-555=328-(319-222)=168+614+33=11×2=116×4+433=459-(46+413)=501×3=153+311-96=188-(455-409)=523×9-577=864-(792-677)=970×3=907×2=782-763=65×3=937-306+679=344×2=85×(470-466)=813×(701-695)=423-30×3=345-(70+25)=710-516+581=140-(207-116)=36×7=667×6=516-69×2=260+144=573×(971-968)=97×4+434=310-137+302=76+387-130=2/4-1/4=438-56+12=400-(884-878)=320-(25+154)=885+(563-465)=648-520+444=122-98=686+992+275=956+924=486+793=112+102=141×3=971-821=215×(174-169)=550-32-415=72×8+614=789×7=212+(493-302)=39+109-37=296+194=316-51×2=441-(559-401)=680-(829-233)=256-159-77=306+113-190=806-169×2=230×5-594=499-30=639-(370-111)=702+667+203=371-210+275=475-84×2=73×6-437=461-21-21=937×(849-841)=996+18-510=80+293=550+(815-22)=135+272-341=851-(483+133)=135×2-266=279-130=868-158-416=293×2-412=517-229-255=167+30-42=271-75-70=375+966=339×2-663=199×(356-352)=453-62×2=55+(150-93)=741×4-524=55×(205-200)=359-61-164=1/7+2/7=285+34+32=4/8+2/8=532-102×2=341-148×2=26+356-341=582-107+60=389+(457-344)=204-30-144=607-(67+124)=494-13×9=107+708-342=556-252-123=719-494-175=675-(64+376)=670+(859-426)=522+584=942-(342-44)=419×7-457=98×9-157=476-291-126=99+198=267+115-332=231-18×3=843+(680-537)=866-(147+104)=311×5-757=274×2-19=120-17×7=365+68-147=488-261=274+50×4=563-61×7=182×5-156=426+316=472-115×4=851-(192+119)=319+123=707+113+857=123+286-58=776-633=488-290=269+118×3=381-(820-466)=143×8-930=458-203=114+274=260-110=2/6-1/6=697-58-23=245-(192-181)=642+487+73=161×3=889-75-340=301-92-189=482-10×4=411+142×2=644-(678-443)=634×(814-807)=964-186×4=226+609+28=349-13×7=965+66×5=246×9-985=787-105+549=113+325+277=130+256=121+245+400=971+537-396=800-(323-240)=64+35-49=340+(451-128)=440-345=243+124×6=754-321+876=573-104×5=220-(263-116)=606-156+417=109×8-580=345×2+220=76+(403-301)=284+40-128=91+(484-415)=578+945-569=91×(433-425)=216+293×2=278-130=492+(889-749)=445-(228+19)=116+(268-148)=823-19×3=785+770+929=333+122+479=603-26×5=771-134-290=399+607+477=967+915-885=294-143+90=633-14-248=188+294+330=491+(823-411)=826+131-336=254-61×2=11+(345-317)=625+62+271=661-72-288=473×(649-645)=248-(405-348)=473+(318-199)=437+41-188=61+65=460+165=4/7-2/7=915-286-242=340-(249-58)=876×(797-788)=727-400=471-299=327-32×9=150×8-40=471-(459-213)=455×5-322=102-(491-459)=195×(477-471)=2/3-1/3=372-321=55+32×5=295×3+917=122+(468-232)=432+(801-342)=365+(242-124)=452+116×4=463-(97+69)=57×3-81=406+425-130=531+139-35=396-(919-756)=51+350-196=109+122=718+743-787=280+(994-127)=314+148-451=412-(60+59)=47×4+163=249+318+209=357+15-217=645×(189-180)=767-18×9=76×6-455=705×3=404+497=12+469-88=792+179×4=71+160+701=118×3+83=677-359=589×6=155+94×3=250-(43+145)=604-135-249=855-(905-767)=637+532+962=640×(382-377)=486-70-230=89+202-65=282×2=639-(566-267)=50+(359-75)=294×(235-232)=150+(331-24)=168+232-137=977×3=611-(27+66)=356-23×7=160+18+820=1/9+2/9=500+100=619-124=1/5+3/5=313-261=485-(126+233)=5/8-2/8=376-372+288=530-11=8/10+2/10=86×(393-384)=557-175×2=930×(670-663)=706-289-228=105×7-299=699-27-490=86×5=331+725-253=284×2=715-12=559+132×5=293-42=825×5-132=976-218=387+453+490=718+84+597=947-706-47=991+(814-132)=131×3-326=128+64=220+61+26=836+912+571=346+(82-44)=736-(719-606)=71+80+390=54+181-58=85×(129-121)=22×6=468-346+187=668-496=175+358+409=35+398+390=343+127=387-281+54=924-723=147+663-805=469-456=464-(613-292)=475×2-37=590-282×2=203+128=264-(71+22)=790-(682+41)=424-(457-327)=291+112+497=126-104+221=347×2=379-70=318-59×2=957+66×7=629+445+487=76-25=410-173-56=220×4-151=33+94-54=57×5+751=721-36-551=464+(339-181)=278+(759-108)=336-142+285=725-431-33=986+737-488=495-(118+353)=459-152×2=451-407+14=158-17×9=303-(457-390)=491-345-97=460-13×4=278+20+438=70+103×9=484-401=824+(753-539)=123+71=97+278+505=937-701=27×4=22+248-78=182+134=604+953+432=856+298-234=777+(367-229)=430×7=310-63-174=957-(46+76)=198×3-228=214+(640-605)=689×3=375-(808-697)=656-31×4=368×2=341+111=83×8-378=19+904-850=182×3=119×(656-647)=575×3=7/10-2/10=495-354=437-18×3=347-151+652=492-437=29+134-156=139+(249-247)=416-(234-148)=327+366+303=2/6+3/6=448-361-81=237+81×4=3/7+2/7=350-45+82=95×(433-425)=432-(306+60)=997+733=335-17×8=330×6-678=159×2+232=399-(86+250)=918+318=550-79×4=498+35+147=678+(528-317)=772+939-609=90+(374-23)=328-117×2=449-72=464-(271+34)=267-(332-260)=74×7=114+(189-12)=374×2=13+128+604=874+140-902=79×8+588=137×3+513=297-182=531×(414-409)=514+167+822=315×8-893=364-313+266=144×(419-414)=104×7-520=230-68×2=755×9=142+77=385+183+581=615×(826-820)=196×4-640=84×4-326=811+560-264=466×2+203=128+342=51×8=142×3+479=775-133×4=868×7-611=488-(217-124)=3/8+2/8=239-(424-351)=28+824-167=453+(254-146)=465-156+755=455-(106+33)=472-(94+145)=533+306=76×(148-145)=213+100=76×8=531+197=915-133+476=254-190-19=46+388-248=521-144+351=223×(250-247)=107×9-489=162-46=64-49+183=398-56-282=1/5+2/5=317-(118-18)=387-(151+128)=18-(221-211)=391-(355-316)=117×4+766=29×(512-503)=486-129-337=191-(421-345)=427+(260-111)=625+82×3=69×(82-73)=204+204-220=478-(27+393)=102×8-631=14+(445-420)=576+822+321=428-279+56=898-107-604=421×2+249=279×3=520+267=858-369×2=602-20=598×7-505=915-794+971=783+121×5=657-(882-390)=791-777+781=342+324×3=118-(402-307)=67×(130-125)=607-294=808-(514+102)=386-190+20=95×4=481-20=127-(461-406)=768+752+465=959-737=260+414+73=232×3+93=708-591=133×3-241=92×(371-364)=795-64=259+90+345=703-179+857=386+(481-151)=3/5-1/5=142-135+146=43×8=513+(870-869)=874-498-220=421×2-291=278-108-163=944×(870-864)=491-265=365+54×7=983-97-731=24×5+54=674-275+969=295+435=886+197×4=976×8=628+617+272=440-(909-578)=451+41×3=326-280=323×8-660=890-611=83+288-176=826×3-511=990×9=112-54+177=479-294+169=244+(491-449)=759+300-744=614+295-638=222-(892-808)=422+44×2=925-259=133×(253-250)=259+164=3/5+2/5=515+109=21×9=1/4+2/4=167+208-262=58×7-236=304-32×5=285×2-381=992×(660-656)=703×(203-199)=16×(277-268)=129×5=23+128-90=865-269-454=35+(234-190)=138×3=546+(570-505)=66+33=132+211=102×8-317=168-15×2=26×5=37+(217-35)=479-(201+230)=443-401+19=213+329+162=439-31×8=582-365+524=639+107+108=159-28+364=439×6=361-193+235=74×3=112×(59-54)=105+(398-358)=462+16-94=441×2=510-(194+302)=391-(433-427)=757+224+646=106×9=146×5-248=78×6+696=361-204+264=472+914+570=733-(172+299)=848×3=111+471+297=396-(717-650)=385+(346-81)=905-99=918-18-663=820×5-236=203+521-419=234-(114+115)=4/8-3/8=380×2-526=136×4+360=215+357+179=598-(236+336)=3/7-2/7=175+237-119=959-(172+737)=456-344-21=84+259=277×(244-241)=207+(714-73)=23×(336-333)=367-41=268+400=142+349=463-437+400=53×4-20=540+225+141=792-(815-53)=152×2+270=138×6=187+17+642=457×7-247=383+913=34×9+453=349-96×2=79+509+282=564-(502+31)=481-127+70=317-50=677-(384+257)=423-206+352=529-236×2=41×2+273=194×4=642×(597-589)=341-(103+136)=38×2-59=918-588+48=214-30×5=873-155-307=191+222=263-71×3=159×3+149=86×6-456=343+284=776-(598+132)=680×5=151+115-186=429-33=317×9-878=201×3+141=484×2=114×2+747=331-62×2=341+11×9=319-80×3=462-121-170=139+60×4=3/6-2/6=225×(476-472)=721-(855-612)=427-40×2=455-52+71=393-(326+47)=771-(602-338)=958+807+223=504+111+321=24+619-360=363×8-73=578-528+195=97+255=475-(194+98)=258+393-588=476×(424-416)=193×5=86+401=484-278-165=87×4-96=770-(124+260)=332-(196-176)=64+(62-32)=117×2-184=100×2+667=935-173+377=353-51×5=381-121×2=479-465+653=959-(329-187)=680-(535-11)=56-22×2=313-37-73=292×7=420+495=192+(288-130)=31×(160-152)=389-160-117=468-407+142=142-21-69=891-326-275=147-146+206=73-(25+48)=138×4+258=330-69=988-(679-351)=441-49×2=668-(153+370)=81×5-83=460-68-91=89×5+566=53+41=247-129+215=820-320-93=68×5=657-41×7=446+397+639=236×(764-761)=184+777-188=2/8+4/8=42+29=692-608=187-20×4=62×2=178+274×2=198-100-47=559×2=334-22=816-(275-65)=38+27=283-152=531+413=162-65-28=913-(213+336)=79+300=147+263-253=652-(212+110)=393-80-196=681×2-247=209-59=739×5=465-242-201=195-(199-179)=456×(809-804)=433-(359-141)=349-(23+107)=606×(453-444)=38×8=406-(475-85)=64×3+257=785+962+825=403+26+124=455-(161+144)=625+27+84=761+(734-24)=372-31×3=624+110-718=326-(99+185)=812×7-985=401-154-60=324+159-362=237×2=137×(375-371)=138+450-502=531+(425-192)=765-422+462=891×4-644=185+(436-77)=65+172+104=276-(318-135)=152+546=253+170=238-179+255=917-(132+639)=380-126-14=262×(355-352)=617-(194+417)=355+(623-232)=366+(839-282)=604-(160+54)=352-113×2=143×(440-435)=787×5-658=686-59×7=370+(838-532)=136+333=176-(935-815)=952-630-183=922-812=677×2=955+437+826=504+(796-149)=989×(473-467)=792-182×4=10×(975-968)=393+168×3=232×(146-142)=184×(95-91)=147×(148-142)=参考答案113-109+242=246371+(360-46)=685654-(378+263)=1347+25=72321+(985-538)=768373-(259-167)=281291-152=139453-(51+365)=37315-13-20=282134+(500-392)=242919+637=1556112×5=560846+(942-688)=1100494-493+221=222976×(392-383)=8784299-(172+21)=10688+137=225234-(766-695)=163839+226×2=1291409-46-228=135665×3=1995394-202=192722-(185+233)=3044/9-2/9=2/9383×2-316=450269+(915-797)=38770-(86-81)=6595×6=57049×(31-24)=343290-218+196=268880+62-607=335901+796+534=2231329+25×6=479507+204=711207×3-451=170501+33+221=755185+169=354467-118×3=113234×(108-105)=702339-(238+63)=38352-(206+95)=51314-302+556=568742-(372-240)=610145+(172-33)=28418×(327-318)=162685-375=310598-46=552700-325+113=488279+284=563335-170-72=93109×(229-223)=65437×8+162=45850+(206-51)=205595-(326+132)=137702-206×3=84139-131+299=307456-(208+242)=646×(412-404)=368424-(406-71)=89452-(154+29)=269165+452×2=106920×(243-239)=80669+11+80=760816-(376+354)=86943-(682-53)=314357+60×7=777439-260-151=28344+119×5=9392/5-1/5=1/5950-672+956=1234485-(116+116)=253900-482+320=738390-22×4=302400-156=244436-185+137=38839×(348-339)=351309-276=33903-334-555=14328-(319-222)=231168+614+33=81511×2=22116×4+433=897459-(46+413)=0501×3=1503153+311-96=368188-(455-409)=142523×9-577=4130864-(792-677)=749970×3=2910907×2=1814782-763=1965×3=195937-306+679=1310344×2=68885×(470-466)=340813×(701-695)=4878423-30×3=333345-(70+25)=250710-516+581=775140-(207-116)=4936×7=252667×6=4002516-69×2=378260+144=404573×(971-968)=171997×4+434=822310-137+302=47576+387-130=3332/4-1/4=1/4438-56+12=394400-(884-878)=394320-(25+154)=141885+(563-465)=983648-520+444=572122-98=24686+992+275=1953956+924=1880486+793=1279112+102=214141×3=423971-821=150215×(174-169)=1075550-32-415=10372×8+614=1190789×7=5523212+(493-302)=40339+109-37=111296+194=490316-51×2=214441-(559-401)=283680-(829-233)=84256-159-77=20306+113-190=229806-169×2=468230×5-594=556499-30=469639-(370-111)=380702+667+203=1572371-210+275=436475-84×2=30773×6-437=1461-21-21=419937×(849-841)=7496996+18-510=50480+293=373550+(815-22)=1343135+272-341=66851-(483+133)=235135×2-266=4279-130=149868-158-416=294293×2-412=174517-229-255=33167+30-42=155271-75-70=126375+966=1341339×2-663=15199×(356-352)=796453-62×2=32955+(150-93)=112741×4-524=244055×(205-200)=275359-61-164=1341/7+2/7=3/7285+34+32=3514/8+2/8=6/8532-102×2=328341-148×2=4526+356-341=41582-107+60=535389+(457-344)=502204-30-144=30607-(67+124)=416494-13×9=377107+708-342=473556-252-123=181719-494-175=50675-(64+376)=235670+(859-426)=1103522+584=1106942-(342-44)=644419×7-457=247698×9-157=725476-291-126=5999+198=297267+115-332=50231-18×3=177843+(680-537)=986866-(147+104)=615311×5-757=798274×2-19=529120-17×7=1365+68-147=286488-261=227274+50×4=474563-61×7=136182×5-156=754426+316=742472-115×4=12851-(192+119)=540319+123=442707+113+857=1677123+286-58=351776-633=143488-290=198269+118×3=623381-(820-466)=27143×8-930=214458-203=255114+274=388260-110=1502/6-1/6=1/6697-58-23=616245-(192-181)=234642+487+73=1202161×3=483889-75-340=474301-92-189=20482-10×4=442411+142×2=695644-(678-443)=409634×(814-807)=4438964-186×4=220226+609+28=863349-13×7=258965+66×5=1295246×9-985=1229787-105+549=1231113+325+277=715130+256=386121+245+400=766971+537-396=1112800-(323-240)=71764+35-49=50340+(451-128)=663440-345=95243+124×6=987754-321+876=1309573-104×5=53220-(263-116)=73606-156+417=867109×8-580=292345×2+220=91076+(403-301)=178284+40-128=19691+(484-415)=160578+945-569=95491×(433-425)=728216+293×2=802278-130=148492+(889-749)=632445-(228+19)=198116+(268-148)=236823-19×3=766785+770+929=2484333+122+479=934603-26×5=473771-134-290=347399+607+477=1483967+915-885=997294-143+90=241633-14-248=371188+294+330=812491+(823-411)=903826+131-336=621254-61×2=13211+(345-317)=39625+62+271=958661-72-288=301473×(649-645)=1892248-(405-348)=191473+(318-199)=592437+41-188=29061+65=126460+165=6254/7-2/7=2/7915-286-242=387340-(249-58)=149876×(797-788)=7884727-400=327471-299=172327-32×9=39150×8-40=1160471-(459-213)=225455×5-322=1953102-(491-459)=70195×(477-471)=11702/3-1/3=1/3372-321=5155+32×5=215295×3+917=1802122+(468-232)=358432+(801-342)=891365+(242-124)=483452+116×4=916463-(97+69)=29757×3-81=90406+425-130=701531+139-35=635396-(919-756)=23351+350-196=205109+122=231718+743-787=674280+(994-127)=1147314+148-451=11412-(60+59)=29347×4+163=351249+318+209=776357+15-217=155645×(189-180)=5805767-18×9=60576×6-455=1705×3=2115404+497=90112+469-88=393792+179×4=150871+160+701=932118×3+83=437677-359=318589×6=3534155+94×3=437250-(43+145)=62604-135-249=220855-(905-767)=717637+532+962=2131640×(382-377)=3200486-70-230=18689+202-65=226282×2=564639-(566-267)=34050+(359-75)=334294×(235-232)=882150+(331-24)=457168+232-137=263977×3=2931611-(27+66)=518356-23×7=195160+18+820=9981/9+2/9=3/9500+100=600619-124=4951/5+3/5=4/5313-261=52485-(126+233)=1265/8-2/8=3/8376-372+288=292530-11=5198/10+2/10=186×(393-384)=774557-175×2=207930×(670-663)=6510706-289-228=189105×7-299=436699-27-490=18286×5=430331+725-253=803284×2=568715-12=703559+132×5=1219293-42=251825×5-132=3993976-218=758387+453+490=1330718+84+597=1399947-706-47=194991+(814-132)=1673131×3-326=67128+64=192220+61+26=307836+912+571=2319346+(82-44)=384736-(719-606)=62371+80+390=54154+181-58=17785×(129-121)=68022×6=132468-346+187=309668-496=172175+358+409=94235+398+390=823343+127=470387-281+54=160924-723=201147+663-805=5469-456=13464-(613-292)=143475×2-37=913590-282×2=26203+128=331264-(71+22)=171790-(682+41)=67424-(457-327)=294291+112+497=900126-104+221=243347×2=694379-70=309318-59×2=200957+66×7=1419629+445+487=156176-25=51410-173-56=181220×4-151=72933+94-54=7357×5+751=1036721-36-551=134464+(339-181)=622278+(759-108)=929336-142+285=479725-431-33=261986+737-488=1235495-(118+353)=24459-152×2=155451-407+14=58158-17×9=5303-(457-390)=236491-345-97=49460-13×4=408278+20+438=73670+103×9=997484-401=83824+(753-539)=1038123+71=19497+278+505=880937-701=23627×4=10822+248-78=192182+134=316604+953+432=1989856+298-234=920777+(367-229)=915430×7=3010310-63-174=73957-(46+76)=835198×3-228=366214+(640-605)=249689×3=2067375-(808-697)=264656-31×4=532368×2=736341+111=45283×8-378=28619+904-850=73182×3=546119×(656-647)=1071575×3=17257/10-2/10=5/10495-354=141437-18×3=383347-151+652=848492-437=5529+134-156=7139+(249-247)=141416-(234-148)=330327+366+303=9962/6+3/6=5/6448-361-81=6237+81×4=5613/7+2/7=5/7350-45+82=38795×(433-425)=760432-(306+60)=66997+733=1730335-17×8=199330×6-678=1302159×2+232=550399-(86+250)=63918+318=1236550-79×4=234498+35+147=680678+(528-317)=889772+939-609=110290+(374-23)=441328-117×2=94449-72=377464-(271+34)=159267-(332-260)=19574×7=518114+(189-12)=291374×2=74813+128+604=745874+140-902=11279×8+588=1220137×3+513=924297-182=115531×(414-409)=2655514+167+822=1503315×8-893=1627364-313+266=317144×(419-414)=720104×7-520=208230-68×2=94755×9=6795142+77=219385+183+581=1149615×(826-820)=3690196×4-640=14484×4-326=10811+560-264=1107466×2+203=1135128+342=47051×8=408142×3+479=905775-133×4=243868×7-611=5465488-(217-124)=3953/8+2/8=5/8239-(424-351)=16628+824-167=685453+(254-146)=561465-156+755=1064455-(106+33)=316472-(94+145)=233533+306=83976×(148-145)=228213+100=31376×8=608531+197=728915-133+476=1258254-190-19=4546+388-248=186521-144+351=728223×(250-247)=669107×9-489=474162-46=11664-49+183=198398-56-282=601/5+2/5=3/5317-(118-18)=217387-(151+128)=10818-(221-211)=8391-(355-316)=352117×4+766=123429×(512-503)=261486-129-337=20191-(421-345)=115427+(260-111)=576625+82×3=87169×(82-73)=621204+204-220=188478-(27+393)=58102×8-631=18514+(445-420)=39576+822+321=1719428-279+56=205898-107-604=187421×2+249=1091279×3=837520+267=787858-369×2=120602-20=582598×7-505=3681915-794+971=1092783+121×5=1388657-(882-390)=165791-777+781=795342+324×3=1314118-(402-307)=2367×(130-125)=335607-294=313808-(514+102)=192386-190+20=21695×4=380481-20=461127-(461-406)=72768+752+465=1985959-737=222260+414+73=747232×3+93=789708-591=117133×3-241=15892×(371-364)=644795-64=731259+90+345=694703-179+857=1381386+(481-151)=7163/5-1/5=2/5142-135+146=15343×8=344513+(870-869)=514874-498-220=156421×2-291=551278-108-163=7944×(870-864)=5664491-265=226365+54×7=743983-97-731=15524×5+54=174674-275+969=1368295+435=730886+197×4=1674976×8=7808628+617+272=1517440-(909-578)=109451+41×3=574326-280=46323×8-660=1924890-611=27983+288-176=195826×3-511=1967990×9=8910112-54+177=235479-294+169=354244+(491-449)=286759+300-744=315614+295-638=271222-(892-808)=138422+44×2=510925-259=666133×(253-250)=399259+164=4233/5+2/5=1515+109=62421×9=1891/4+2/4=3/4167+208-262=11358×7-236=170304-32×5=144285×2-381=189992×(660-656)=3968703×(203-199)=281216×(277-268)=144129×5=64523+128-90=61865-269-454=14235+(234-190)=79138×3=414546+(570-505)=61166+33=99132+211=343102×8-317=499168-15×2=13826×5=13037+(217-35)=219479-(201+230)=48443-401+19=61213+329+162=704439-31×8=191582-365+524=741639+107+108=854159-28+364=495439×6=2634361-193+235=40374×3=222112×(59-54)=560105+(398-358)=145462+16-94=384441×2=882510-(194+302)=14391-(433-427)=385757+224+646=1627106×9=954146×5-248=48278×6+696=1164361-204+264=421472+914+570=1956733-(172+299)=262848×3=2544111+471+297=879396-(717-650)=329385+(346-81)=650905-99=806918-18-663=237820×5-236=3864203+521-419=305234-(114+115)=54/8-3/8=1/8380×2-526=234136×4+360=904215+357+179=751598-(236+336)=263/7-2/7=1/7175+237-119=293959-(172+737)=50456-344-21=9184+259=343277×(244-241)=831207+(714-73)=84823×(336-333)=69367-41=326268+400=668142+349=491463-437+400=42653×4-20=192540+225+141=906792-(815-53)=30152×2+270=574138×6=828187+17+642=846457×7-247=2952383+913=129634×9+453=759349-96×2=15779+509+282=870564-(502+31)=31481-127+70=424317-50=267677-(384+257)=36423-206+352=569529-236×2=5741×2+273=355194×4=776642×(597-589)=5136341-(103+136)=10238×2-59=17918-588+48=378214-30×5=64873-155-307=411191+222=413263-71×3=50159×3+149=62686×6-456=60343+