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667+(488-180)=499-(188+244)=844-186×3=822+100×9=466+(346-65)=251+(126-47)=143+801-450=785-(196+271)=75+96=299+55×4=786-(152+446)=438×2-466=305×8-203=129-26+265=540×7-846=772-157-417=865-(272-15)=188-(300-246)=821-70-35=250+(488-113)=63×(633-628)=231-(396-198)=449+242+907=895-437-255=752+872-154=155-(389-332)=448+490+18=966+(558-220)=134×6-607=343+208=211+534+178=367-317=674+18×7=494×2+110=148×6-254=75×8=208+83×9=77+76=875×9-490=142×(313-304)=669+439=324×(808-802)=863+63-230=334+(234-38)=754-630=313-60-124=145×(355-352)=423-196+26=427×2-292=326+(897-275)=48-15×3=3/4-1/4=88+50+432=506+380=315-(371-152)=445×(717-711)=470+64+82=555-(909-837)=2/5-1/5=192+201-291=554+162×2=213+401+178=325+(958-621)=262-(465-231)=356-290+27=667+(638-548)=235×3-332=1/7+4/7=55×5+914=999+770+937=122×8=903-421=646×5-24=78+170×5=965+48+600=162×2-258=493×9-820=386-(12+335)=303+176=161×2-51=112×6=630+588-379=51×(755-752)=665-294=761-146+866=378+946=539×(433-430)=347+334=868+(754-536)=897×(167-161)=933-(479-287)=53+154+294=129+306+17=292×9-589=427+(716-676)=111+197=475-20×9=136×2+342=810-722=244×3=770×6=267-26-23=901-39-415=106×(53-44)=197-(189-162)=109×7+75=62+(481-108)=55+364-192=523×2=684+(427-267)=249×2-133=301×2+248=788-(727-444)=6/10-3/10=205-93-15=238×9-94=169+124=57×3-108=26×(457-452)=462-(316-264)=386-(369-124)=748+704+168=669×3-279=395-363+457=606×2=248×2=197-28×2=353-(701-527)=972-107×9=970-229-613=42×3=73×3+569=137×7=500+56+176=56×(284-279)=490-176-97=1/10+5/10=762×(472-465)=50×2+357=739+494-870=463+67+518=446-121=763-73+774=208-(156+47)=809+295×3=184×(263-258)=236+(330-298)=374-33=776-268-79=131×7-855=388-(21+105)=894-18×6=864+10×7=188×2=137×3-380=475-(268+53)=37+207-19=523-(195+31)=675×6=448×6-892=5/7-2/7=1/6+3/6=128+149-270=853-88-428=413+187×5=1/7+2/7=260+378+119=397-136=286-207+178=301-219-31=477-30×8=367-(297+38)=933+84×2=507-221-124=554×(952-943)=426+(326-245)=168+77=68×4+761=901×(354-350)=926-(385-51)=107+248+75=333×(223-214)=26+20×3=332×8-356=849×7-406=779-168×2=478-97×2=733-144+561=684-(99-28)=737+(989-815)=221-14-61=807-(203+125)=384-327=557-(59+286)=180+308-285=242×(127-124)=959-673-120=176×5=126+68=431+935+663=989-250-105=471×6=701-188+47=68+343=358+86=146-(10+37)=277+(52-32)=407-248+53=179×(171-167)=934-348+453=474-(105+130)=261-228+176=517-(59+351)=251-49+212=895-245×3=792-10-727=197×3=83×7=612-(174+342)=188×(441-438)=736-(113+413)=627-308+661=148×2=3/9+6/9=420-275-145=470+699-522=179+575=816-81+54=306-(51+224)=952-547+664=2/8-1/8=237-100×2=367+663+18=867-643=553-11-537=416-(288-32)=177+(877-777)=735-29×4=493-219×2=106+67-27=289+(453-184)=376×(291-283)=914-(556-506)=765+(560-494)=406-69=25+(828-163)=400+471+836=827×2-73=18×6=530+247-567=303×5-337=109+369=66-34=212×3=982+192=136+259+142=732+377=614×4-755=200+331+308=412+33-158=404-183+224=369-323+286=970-230-262=83+250×3=455-(421-124)=439-174-187=940-(582-577)=132×7=451-53-364=566-83=321-29=618-355=120×(484-478)=389-(394-107)=374-164=392×2-538=444-242-36=441+135=250-(761-604)=647-(913-544)=636-310+202=693+381-626=534+415+208=103×7=96+(408-31)=659-430+992=2/4-1/4=14+407-389=962×5=228×(390-386)=333-50×2=869-809=464-205=608×3-668=111+178×4=395-(28+344)=948-484-320=179-146=126×4+359=856+25+894=305×3=935+(929-867)=459-(406-143)=479-330-104=658-(432+139)=2/3-1/3=792×(117-112)=415×(329-323)=169+(391-235)=181-106+661=251+145=549-140+817=464+771-843=324+367=441-192×2=424+16+452=718-(24+412)=452-129=271-84×3=779-34×7=219-38+177=119+367-120=760-(436+150)=707-19-533=595-(37+446)=123×7=62+396-408=383×2=286×5-98=485×2-249=65+(428-416)=881+198-953=271×6=127+64=332-177+181=977-(643-84)=269-(455-217)=44+563+332=20+361-83=287-32×8=808×8=790-292=323+87-303=112+373-168=135+160-152=958×3=661×6-315=454-51-154=213+100-139=115×4=93×7=703-160×2=66-(226-197)=149-22+229=659+730+712=196+381+148=878×2-805=355-26-255=955-(549-337)=489-31×7=539-216=670×6-15=153×4-577=471-232-169=228+196=300-47-137=220-142=343-(323-181)=3/6-1/6=300×2-355=834-263×2=233×2+362=118-23+462=266-50×3=46+115=69-(282-243)=13×2+117=447-65-97=224+258×3=644×(141-134)=37+50=229-19×9=243+352+219=367-281=616-(179+57)=700×8-736=164+626=316-28×6=43×6=348+(930-129)=250×4-995=521+80+38=279-(435-282)=172×(244-241)=349-106+79=201×(400-393)=217+279=460×9-568=419-183+900=464×2-466=714-19-639=123×2=131-(178-135)=267-18×9=993-169×4=131×5-628=304-(232-150)=396-(467-398)=888-(314+369)=445×(20-15)=361-(794-467)=654-92×6=354+(854-554)=143×(120-115)=335-54×5=780-(502+88)=369+266×2=931+(874-182)=343×2+776=2/6-1/6=77×4+111=819-337=351-198-117=141+359-358=48+(386-365)=195×5-529=445-41×2=105+55-45=446-15×8=166+(461-67)=192×4-69=101+(330-256)=63×6+101=839+314+487=490-(752-568)=468-(40+289)=341×(421-412)=400-(59+130)=122+28×7=446-176+17=99×4-100=335×2=155+200=647×3-680=943-269×2=361+69-316=541×8=438-278=259+103×7=245×9=412+(435-107)=797×(747-742)=111-(407-297)=770+561+461=772-(205+282)=225+137=121+564-665=464-(419-298)=481-20×9=56+153-206=921-(409+91)=574-118+209=1/4+2/4=788+41-180=22×3=48-23=866-(904-678)=290-240+310=163-73+56=756-(349-335)=477-(289+87)=330×2+926=113+71×8=353+(631-364)=62×8=569×2=80+333-166=382-39=423-191+10=402-232-105=64×6+333=1/7+3/7=332-(27+113)=970-643+14=163+(302-72)=332+(384-340)=493-40=681-484=204+14+54=344+299=287×3-161=364+194+985=502×5=161-42×2=312-156=115-35+385=5/9+3/9=233×9-367=628-114×4=174-49×2=445×2+639=101+87=584+138+19=233×4=26×8=637-137×4=850-430-307=114×(380-375)=824-385×2=472-112-72=410×2=195×(72-69)=385×2+177=719-457-175=383-(775-651)=453-(300+117)=96×(453-445)=539+146=129×3-198=408×2=626+423+583=82+373=493-(210+57)=39+128=302×2+97=153+85+366=153×(230-224)=214×4-716=432-(14+241)=41×7-96=283-89+42=162×(269-263)=618-56×9=214+210-267=358×2-238=121+378+470=37+81+397=67×7=390-40×5=466+(493-428)=886-30×9=83×7+718=900-349-476=443-209-37=806-543=104×9=483+48×5=343-(203+45)=145×(148-145)=246×(88-84)=3/6+2/6=94+225-40=132×(400-393)=24×8+83=456-(84+251)=150-122=364-57×4=699-376+534=481-(86-69)=62+319=218-70+73=796+(336-25)=384+307×2=329-80=399-317+338=438-75=859×(507-498)=736-(15+583)=163+(240-33)=211+215=219-(186-143)=873+645+322=27+171×5=674-51-382=114+45-71=318+(229-227)=315+396-72=162+105=4/8+2/8=959-216×2=156+996-111=6/10-2/10=993-45=788×3-250=172-(145-140)=261×(73-70)=939-118-282=178+149+371=85×9=145×3=212+449=68+(306-124)=268-224=125-61+267=467-(267-193)=344-71×4=489-30×5=793+902=209×3=195-159+461=86×6-239=240-119-115=357+516-739=277-264=92×(441-434)=17+425-268=120-79+299=822-(949-302)=294-36×7=88+269+126=280-(67+140)=93+36=251-211+36=601-(29+526)=192+293-55=129×(413-406)=990+162-193=202-147+272=88+35+431=465-50=449+(473-235)=442+(750-514)=483-(92+88)=150+639=973-306×2=212+(312-279)=940-47+553=835-814+424=23+38=997-838=245-47-173=187+208-163=121×4-449=292-(402-248)=972×5=278-16×2=265+55=203-22×4=591-(932-724)=944-242-596=186-(421-303)=176-119=381-(65+299)=19+17+501=470+(202-38)=254×5=871-365×2=393+314=573-(547-483)=104+263=172×3-181=685-21×9=62+38+524=836-719+281=819-631-123=512-(235+104)=369-46-16=436-31×8=223×(137-134)=795+(914-140)=753-188-174=279-138-99=83+23=55×(231-228)=861-(262-189)=418-11-389=18+420-393=221×(102-98)=406-109-133=575+748=728-141×3=142+293-126=101+207-259=89+396=373×(850-844)=664+925+716=282-(120+86)=183+48=928+350=441-93×2=213+(560-419)=446-(362+29)=488+(487-206)=349-(21+307)=760+235-255=490+(230-67)=428-165-74=36+287-90=231+(139-23)=830-474=748-(547+35)=85+362=789-377+128=303+102-81=611+(279-27)=537-141×3=837×5=974-(158+31)=924-(660+20)=496-(71+168)=92+773+555=135+344+282=845-156-163=775-483=419-416+437=216-125=333×3=76+164=899-(167+184)=924-356-448=884+649-72=896-(858-444)=723×8=23×(419-413)=470-(478-447)=323×2+25=692+982+729=125×4-265=3/7-1/7=480-(415+54)=114×7-518=75-19+245=237+839-422=358×(217-211)=313-99×2=174×4+117=469+(344-102)=978-(296+319)=945-109-323=160×2+64=312+(906-161)=375-(798-706)=432-258-109=243×8=794+261+587=458-332+211=12+127×3=892-(10+318)=126×6+169=337-168=676+723-472=453-(160+110)=414+755+261=927-(781-609)=377+(437-396)=188+(763-95)=758+692+813=385+158+19=388-220+256=46×(40-37)=161×3+464=143-83+289=997×(154-146)=254-220=48+90×5=590+37×2=387-223+160=2/7+4/7=64+319-241=14+(470-25)=971-232×4=687+395+800=421×2=702+160+844=325-297+141=15×6=399×2+40=446-39×2=392+834-625=419-279=814+743-700=714-434=248-(332-98)=41+310×3=112+348-93=210-78×2=51×8-398=609+885-378=535+188×3=324-131=303+(710-245)=534-(307+218)=422-62×5=100×(163-159)=491×7-979=179-(605-604)=702+965=363-328=61×8+747=955-453-312=443-(312-190)=101×(262-256)=328-16-170=63+51+861=818-777=978-(359+354)=137+364+27=364+(278-46)=3/8+4/8=123-110=126+75×5=441+575=506+601=310×2+372=648×(893-889)=267-(545-498)=190-47-136=334-(18+210)=863-(552+190)=346×7-698=903-665=195+46×5=461-84+541=383+521-201=588-483+777=520+519+478=181-149=119×(378-371)=464+(453-110)=79×9-156=941×9=172+299=275+302+186=926×6=793-16+780=51×4+95=200-94=15+43+729=333×(545-542)=433-(86+86)=316-113-74=878×(346-340)=36×8=212+140+213=531+241=341-144+158=702+271-361=104×6=385-99=553-539=410-279=798+(544-94)=653+937-378=983-686=156×(67-62)=73×(241-238)=986-(412+495)=200-(277-221)=297+12×3=237+63=130-76=575+(978-159)=236-(648-617)=175+507+315=323-206+551=863+199=993-914-68=28+71×5=277+295=114×(876-868)=103+970-952=356-73×2=232×4-720=3/7-2/7=参考答案667+(488-180)=975499-(188+244)=67844-186×3=286822+100×9=1722466+(346-65)=747251+(126-47)=330143+801-450=494785-(196+271)=31875+96=171299+55×4=519786-(152+446)=188438×2-466=410305×8-203=2237129-26+265=368540×7-846=2934772-157-417=198865-(272-15)=608188-(300-246)=134821-70-35=716250+(488-113)=62563×(633-628)=315231-(396-198)=33449+242+907=1598895-437-255=203752+872-154=1470155-(389-332)=98448+490+18=956966+(558-220)=1304134×6-607=197343+208=551211+534+178=923367-317=50674+18×7=800494×2+110=1098148×6-254=63475×8=600208+83×9=95577+76=153875×9-490=7385142×(313-304)=1278669+439=1108324×(808-802)=1944863+63-230=696334+(234-38)=530754-630=124313-60-124=129145×(355-352)=435423-196+26=253427×2-292=562326+(897-275)=94848-15×3=33/4-1/4=2/488+50+432=570506+380=886315-(371-152)=96445×(717-711)=2670470+64+82=616555-(909-837)=4832/5-1/5=1/5192+201-291=102554+162×2=878213+401+178=792325+(958-621)=662262-(465-231)=28356-290+27=93667+(638-548)=757235×3-332=3731/7+4/7=5/755×5+914=1189999+770+937=2706122×8=976903-421=482646×5-24=320678+170×5=928965+48+600=1613162×2-258=66493×9-820=3617386-(12+335)=39303+176=479161×2-51=271112×6=672630+588-379=83951×(755-752)=153665-294=371761-146+866=1481378+946=1324539×(433-430)=1617347+334=681868+(754-536)=1086897×(167-161)=5382933-(479-287)=74153+154+294=501129+306+17=452292×9-589=2039427+(716-676)=467111+197=308475-20×9=295136×2+342=614810-722=88244×3=732770×6=4620267-26-23=218901-39-415=447106×(53-44)=954197-(189-162)=170109×7+75=83862+(481-108)=43555+364-192=227523×2=1046684+(427-267)=844249×2-133=365301×2+248=850788-(727-444)=5056/10-3/10=3/10205-93-15=97238×9-94=2048169+124=29357×3-108=6326×(457-452)=130462-(316-264)=410386-(369-124)=141748+704+168=1620669×3-279=1728395-363+457=489606×2=1212248×2=496197-28×2=141353-(701-527)=179972-107×9=9970-229-613=12842×3=12673×3+569=788137×7=959500+56+176=73256×(284-279)=280490-176-97=2171/10+5/10=6/10762×(472-465)=533450×2+357=457739+494-870=363463+67+518=1048446-121=325763-73+774=1464208-(156+47)=5809+295×3=1694184×(263-258)=920236+(330-298)=268374-33=341776-268-79=429131×7-855=62388-(21+105)=262894-18×6=786864+10×7=934188×2=376137×3-380=31475-(268+53)=15437+207-19=225523-(195+31)=297675×6=4050448×6-892=17965/7-2/7=3/71/6+3/6=4/6128+149-270=7853-88-428=337413+187×5=13481/7+2/7=3/7260+378+119=757397-136=261286-207+178=257301-219-31=51477-30×8=237367-(297+38)=32933+84×2=1101507-221-124=162554×(952-943)=4986426+(326-245)=507168+77=24568×4+761=1033901×(354-350)=3604926-(385-51)=592107+248+75=430333×(223-214)=299726+20×3=86332×8-356=2300849×7-406=5537779-168×2=443478-97×2=284733-144+561=1150684-(99-28)=613737+(989-815)=911221-14-61=146807-(203+125)=479384-327=57557-(59+286)=212180+308-285=203242×(127-124)=726959-673-120=166176×5=880126+68=194431+935+663=2029989-250-105=634471×6=2826701-188+47=56068+343=411358+86=444146-(10+37)=99277+(52-32)=297407-248+53=212179×(171-167)=716934-348+453=1039474-(105+130)=239261-228+176=209517-(59+351)=107251-49+212=414895-245×3=160792-10-727=55197×3=59183×7=581612-(174+342)=96188×(441-438)=564736-(113+413)=210627-308+661=980148×2=2963/9+6/9=1420-275-145=0470+699-522=647179+575=754816-81+54=789306-(51+224)=31952-547+664=10692/8-1/8=1/8237-100×2=37367+663+18=1048867-643=224553-11-537=5416-(288-32)=160177+(877-777)=277735-29×4=619493-219×2=55106+67-27=146289+(453-184)=558376×(291-283)=3008914-(556-506)=864765+(560-494)=831406-69=33725+(828-163)=690400+471+836=1707827×2-73=158118×6=108530+247-567=210303×5-337=1178109+369=47866-34=32212×3=636982+192=1174136+259+142=537732+377=1109614×4-755=1701200+331+308=839412+33-158=287404-183+224=445369-323+286=332970-230-262=47883+250×3=833455-(421-124)=158439-174-187=78940-(582-577)=935132×7=924451-53-364=34566-83=483321-29=292618-355=263120×(484-478)=720389-(394-107)=102374-164=210392×2-538=246444-242-36=166441+135=576250-(761-604)=93647-(913-544)=278636-310+202=528693+381-626=448534+415+208=1157103×7=72196+(408-31)=473659-430+992=12212/4-1/4=1/414+407-389=32962×5=4810228×(390-386)=912333-50×2=233869-809=60464-205=259608×3-668=1156111+178×4=823395-(28+344)=23948-484-320=144179-146=33126×4+359=863856+25+894=1775305×3=915935+(929-867)=997459-(406-143)=196479-330-104=45658-(432+139)=872/3-1/3=1/3792×(117-112)=3960415×(329-323)=2490169+(391-235)=325181-106+661=736251+145=396549-140+817=1226464+771-843=392324+367=691441-192×2=57424+16+452=892718-(24+412)=282452-129=323271-84×3=19779-34×7=541219-38+177=358119+367-120=366760-(436+150)=174707-19-533=155595-(37+446)=112123×7=86162+396-408=50383×2=766286×5-98=1332485×2-249=72165+(428-416)=77881+198-953=126271×6=1626127+64=191332-177+181=336977-(643-84)=418269-(455-217)=3144+563+332=93920+361-83=298287-32×8=31808×8=6464790-292=498323+87-303=107112+373-168=317135+160-152=143958×3=2874661×6-315=3651454-51-154=249213+100-139=174115×4=46093×7=651703-160×2=38366-(226-197)=37149-22+229=356659+730+712=2101196+381+148=725878×2-805=951355-26-255=74955-(549-337)=743489-31×7=272539-216=323670×6-15=4005153×4-577=35471-232-169=70228+196=424300-47-137=116220-142=78343-(323-181)=2013/6-1/6=2/6300×2-355=245834-263×2=308233×2+362=828118-23+462=557266-50×3=11646+115=16169-(282-243)=3013×2+117=143447-65-97=285224+258×3=998644×(141-134)=450837+50=87229-19×9=58243+352+219=814367-281=86616-(179+57)=380700×8-736=4864164+626=790316-28×6=14843×6=258348+(930-129)=1149250×4-995=5521+80+38=639279-(435-282)=126172×(244-241)=516349-106+79=322201×(400-393)=1407217+279=496460×9-568=3572419-183+900=1136464×2-466=462714-19-639=56123×2=246131-(178-135)=88267-18×9=105993-169×4=317131×5-628=27304-(232-150)=222396-(467-398)=327888-(314+369)=205445×(20-15)=2225361-(794-467)=34654-92×6=102354+(854-554)=654143×(120-115)=715335-54×5=65780-(502+88)=190369+266×2=901931+(874-182)=1623343×2+776=14622/6-1/6=1/677×4+111=419819-337=482351-198-117=36141+359-358=14248+(386-365)=69195×5-529=446445-41×2=363105+55-45=115446-15×8=326166+(461-67)=560192×4-69=699101+(330-256)=17563×6+101=479839+314+487=1640490-(752-568)=306468-(40+289)=139341×(421-412)=3069400-(59+130)=211122+28×7=318446-176+17=28799×4-100=296335×2=670155+200=355647×3-680=1261943-269×2=405361+69-316=114541×8=4328438-278=160259+103×7=980245×9=2205412+(435-107)=740797×(747-742)=3985111-(407-297)=1770+561+461=1792772-(205+282)=285225+137=362121+564-665=20464-(419-298)=343481-20×9=30156+153-206=3921-(409+91)=421574-118+209=6651/4+2/4=3/4788+41-180=64922×3=6648-23=25866-(904-678)=640290-240+310=360163-73+56=146756-(349-335)=742477-(289+87)=101330×2+926=1586113+71×8=681353+(631-364)=62062×8=496569×2=113880+333-166=247382-39=343423-191+10=242402-232-105=6564×6+333=7171/7+3/7=4/7332-(27+113)=192970-643+14=341163+(302-72)=393332+(384-340)=376493-40=453681-484=197204+14+54=272344+299=643287×3-161=700364+194+985=1543502×5=2510161-42×2=77312-156=156115-35+385=4655/9+3/9=8/9233×9-367=1730628-114×4=172174-49×2=76445×2+639=1529101+87=188584+138+19=741233×4=93226×8=208637-137×4=89850-430-307=113114×(380-375)=570824-385×2=54472-112-72=288410×2=820195×(72-69)=585385×2+177=947719-457-175=87383-(775-651)=259453-(300+117)=3696×(453-445)=768539+146=685129×3-198=189408×2=816626+423+583=163282+373=455493-(210+57)=22639+128=167302×2+97=701153+85+366=604153×(230-224)=918214×4-716=140432-(14+241)=17741×7-96=191283-89+42=236162×(269-263)=972618-56×9=114214+210-267=157358×2-238=478121+378+470=96937+81+397=51567×7=469390-40×5=190466+(493-428)=531886-30×9=61683×7+718=1299900-349-476=75443-209-37=197806-543=263104×9=936483+48×5=723343-(203+45)=95145×(148-145)=435246×(88-84)=9843/6+2/6=5/694+225-40=279132×(400-393)=92424×8+83=275456-(84+251)=121150-122=28364-57×4=136699-376+534=857481-(86-69)=46462+319=381218-70+73=221796+(336-25)=1107384+307×2=998329-80=249399-317+338=420438-75=363859×(507-498)=7731736-(15+583)=138163+(240-33)=370211+215=426219-(186-143)=176873+645+322=184027+171×5=882674-51-382=241114+45-71=88318+(229-227)=320315+396-72=639162+105=2674/8+2/8=6/8959-216×2=527156+996-111=10416/10-2/10=4/10993-45=948788×3-250=2114172-(145-140)=167261×(73-70)=783939-118-282=539178+149+371=69885×9=765145×3=435212+449=66168+(306-124)=250268-224=44125-61+267=331467-(267-193)=393344-71×4=60489-30×5=339793+902=1695209×3=627195-159+461=49786×6-239=277240-119-115=6357+516-739=134277-264=1392×(441-434)=64417+425-268=174120-79+299=340822-(949-302)=175294-36×7=4288+269+126=483280-(67+140)=7393+36=129251-211+36=76601-(29+526)=46192+293-55=430129×(413-406)=903990+162-193=959202-147+272=32788+35+431=554465-50=415449+(473-235)=687442+(750-514)=678483-(92+88)=303150+639=789973-306×2=361212+(312-279)=245940-47+553=1446835-814+424=44523+38=61997-838=159245-47-173=25187+208-163=232121×4-449=35292-(402-248)=138972×5=4860278-16×2=246265+55=320203-22×4=115591-(932-724)=383944-242-596=106186-(421-303)=68176-119=57381-(65+299)=1719+17+501=537470+(202-38)=634254×5=1270871-365×2=141393+314=707573-(547-483)=509104+263=367172×3-181=335685-21×9=49662+38+524=624836-719+281=398819-631-123=65512-(235+104)=173369-46-16=307436-31×8=188223×(137-134)=669795+(914-140)=1569753-188-174=391279-138-99=4283+23=10655×(231-228)=165861-(262-189)=788418-11-389=1818+420-393=45221×(102-98)=884406-109-133=164575+748=1323728-141×3=305142+293-126=309101+207-259=4989+396=485373×(850-844)=2238664+925+716=2305282-(120+86)=76183+48=231928+350=1278441-93×2=255213+(560-419)=354446-(362+29)=55488+(487-206)=769349-(21+307)=21760+235-255=740490+(230-67)=653428-165-74=18936+287-90=233231+(139-23)=347830-474=356748-(547+35)=16685+362=447789-377+128=540303+102-81=324611+(279-27)=863537-141×3=114837×5=4185974-(158+31)=785924-(660+20)=244496-(71+168)=25792+773+555=1420135+344+282=761845-156-163=526775-483=292419-416+437=440216-125=91333×3=99976+164=240899-(167+184)=548924-356-448=120884+649-72=1461896-(858-4