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990+690=157+171+392=890-(17+185)=236-(431-400)=949+(311-60)=978+(644-44)=146×6=173+234=408×(475-470)=433-46×8=925-487-176=99×7=238+274=416+659+874=249+46=175×(407-403)=31×2=271-90-102=356+(374-355)=378-80+608=403-321=137-22-45=406×2=304-115-29=96×7-270=584-42×9=5/8-1/8=173+(494-114)=87+187=462+(280-223)=675+327-549=398-233+233=21×9-113=500-(500-10)=399-(216+182)=732-582+830=902×2=135×2=671-(655-141)=301-275+377=5/8-3/8=962-67+762=255-(113+15)=674×(292-284)=383-324=993-323+179=100×9=368×2=638×(630-625)=407-337+34=348×4-155=1/8+2/8=304-29×2=106+301=966-293-607=749+386+322=327+111=477×6=740-373=59×(473-466)=104+(600-64)=172×4-115=273-(395-301)=669-144=232+158=894-146×5=670×(877-870)=226×4=4/7-3/7=356-44+50=895+648+611=466-87×3=477-(279-194)=442+(427-380)=820+896-994=304-148×2=757-(21+268)=244+(97-61)=6/9-2/9=970-(915-874)=378+763=434-(993-725)=988×8=909+(191-63)=446-(80+244)=193-(452-402)=901-443=786+196-204=370+404=105×6=226+380-296=663+952+875=433-212+146=339-(737-631)=414-159=214×(976-967)=334-311+131=500-188-31=484-(310+49)=39+128×5=456-34×8=195-45=89+122-80=945×5=402-100×4=4/7-2/7=479+350+720=81×6-297=278-(91+147)=194+43=1/5+4/5=197+255+896=900-(52+221)=121×4=126+99-187=82+318+169=476-(262-98)=953-223×3=530×6-152=142+306-322=718-464=487-(481-327)=796×2-189=383-59-77=562×5-649=193+537=289-(346-142)=187+179-172=324+114=234+(382-381)=415-(238+85)=415-204-39=87×(200-194)=222+70-195=486-22×5=840+821-637=311-(129+93)=188-(311-291)=422-410=1/7+3/7=239+(783-203)=430×2-56=192×4+11=398-69-77=375+107-85=437×2=919+186×2=138×7=444-99=179-20×7=770-126×2=863+167+630=117+412+445=399+(921-429)=457-232+224=522+652-838=116+276-70=461-38×3=41×4+237=239-(612-563)=479-(110+234)=659-265=47×2-44=390-85-82=230×7=468×5-126=178+(721-487)=453-54-320=198×2+178=824-12-758=902-327+23=47+(115-64)=205-78=363-(316-178)=2/7+4/7=56×(289-286)=156+314=166+(876-115)=516×2=325+(321-83)=641×9-395=569×2=137-113=464-35-107=793+399=62×(402-399)=778-(302+346)=129+144+567=594-99×6=467-(310-127)=429-107+105=759+506-175=189+33×2=397-(122+89)=836×9-373=269×8-302=58+661+219=960-218×3=470-213×2=48+33=261+116-143=541-(171+287)=302+639-256=638-(33+508)=689+72×7=613×(199-192)=3/8+2/8=187+126=458-31×2=464×9=626-280=931+98-415=360-223+131=168-(371-303)=304-136×2=482-328=252-63×4=281+933+847=126×7-679=170-124+231=217×4=436+352=182+248=342-260+356=456+(168-157)=53×3+442=263-15×2=474+14-396=865×3-65=650-(211+348)=541+432×2=29+(405-400)=197×(40-37)=54+11=480-379+132=270+118-26=103-15+550=620+228=391-56+116=275-25×9=227×6=463+605-687=249-21+272=689×6-931=229+97×4=38×(106-97)=106-(586-571)=404-(307+34)=180+(318-151)=927×5=284+221+233=110×9-170=440+(445-107)=878+859-250=4/8-1/8=109+574+101=167-16×2=446-(234-79)=526+464-787=133-31×4=481-345+79=119×4=82×5+11=99×2-119=337+40-357=173+285=35+(323-278)=339+813-588=403×9=792+275+188=793×5-511=380+455=269+205+203=987×3=326×(184-181)=108×7+662=511-373-118=906-334×2=586-183×2=410×(878-874)=441-20×7=134×(33-26)=927-(13+647)=661-58×5=2/7-1/7=782-(87+694)=961-714-51=444-(667-269)=815+(689-37)=369-270+193=200-183=2/4-1/4=386-(148+90)=457+58×4=619+276×2=242+403+118=133+59=90×4=654+421×2=68×5+34=595+608-180=853-324-419=756×7-988=242+193=339-80×3=51×9-242=876-(405+280)=159+(370-311)=303+249×2=232×3=178+186-79=529-(291+129)=560×3-198=808+758-183=601-(538-372)=30×9+687=979-140=115×4=571-204+240=403+(565-548)=393-(266+27)=445×2=903-(59+574)=193×3-480=508+637=446-(500-349)=112+(799-224)=388-274+223=223-120-28=285-34×5=192×5-656=431-(306-299)=443-40×3=688+404+449=296×(280-277)=367-18-312=162×3=296×3-186=654+153×2=717+251=423-293-119=604-158=102+367-196=957-17-243=474-284-136=190-40=462-292+194=690-95×4=933-159×3=591+281×2=166×2-95=835+372+78=389+204+310=430-168=887-585-282=200-57×3=293×3-774=594+961-36=323-(106+80)=314+57×8=948-(208+629)=90×(372-368)=869-279×3=319-38×4=460+835-60=69+215+809=316+519+796=798×7=4/7+2/7=530+37×5=619-125-236=846-238-530=876+219=40×3-89=136-27+328=893-300-194=922-318=3/5-1/5=190+466+456=434-(120+240)=185+240-321=930-502-264=411+(368-42)=493-158-88=935-(936-97)=175×3+301=477-55×3=445-230=202×4=272-(30-11)=256×(150-143)=891-469=276-(471-381)=192+30×5=214+183-129=405-(204+87)=748-(247+301)=873+(516-468)=1/4+3/4=484+182+722=185+949-587=969-(524+49)=706+983+466=204+655=517×(604-596)=245+191=750-107+940=379-169-169=285+(632-284)=757-(381+85)=355-209=234×(253-250)=517-319+33=22×3+595=217+103+600=586+566=562-39×8=810-(442-144)=416-47=277×2+343=416×2-166=205+50×5=358+450=989+421+219=716+997+932=70+223-159=154+295+788=255+180-149=464-196+86=95+419-493=915×(450-444)=802-(313+447)=182-91=277-79-172=83×(392-388)=308+181-61=426×(931-927)=268+193-47=192×(294-290)=957-(300+59)=606-(844-432)=239×4-790=715-457=189×(418-413)=934×4=764+(706-302)=477×6-990=40+(883-673)=296+442+675=301-20×6=320+116=398-(156+75)=62+253=354-(118+219)=48×8=122×(38-35)=881-425-225=50×(312-308)=369+896+249=122+170-180=67+180=317×(106-103)=996-(459-255)=245-140+390=172+312=947-(362+127)=608-223+429=736×(165-162)=730-134=546-522-23=678-(329+200)=304-294=896-510+780=873-(352-323)=125-47=314-(105+115)=771+164×6=475×2=219×(378-370)=862-391+965=655×6-820=438+(362-66)=308-125-39=924+977-579=956-(594+173)=402-(329+12)=15+563+127=496×2-590=174×8-423=472-(328-294)=102×8+122=2/3-1/3=451-113×3=995×(308-300)=314+74×5=949+(914-426)=359-236=879-131+284=339-23-15=907-397=467-139-108=432-(109+229)=669-36+867=87×9-523=70×8+408=744+383+123=368-323=629+611+849=456-204+55=466-321=220+196=750+900=100×3=756-(694-644)=965+(725-443)=734+623-871=482-53-44=395+286×2=631+702+348=228×2+415=153+82+450=268+161×2=460-13×6=776×5=31+46=769-32×6=753×9=340×2-272=362+48-205=500+(261-162)=220×8=4/7+3/7=531+234+235=598-45=592+(817-551)=334-240=204-157=237-218=261+98=961-(197+46)=500+(225-169)=422-(360-343)=41×2+88=14+179+159=617-443+547=154×(198-193)=976-757+417=63+208-11=23+135+445=489-(223-198)=831-200=462×6=167×5=25×(384-379)=174×2-169=256+443=925+(167-115)=655×4=591-118×5=488-38×8=103×(477-474)=986-(933-440)=941-32×4=413-85-314=558-(317-308)=845+91×3=992-120-23=788×7=364+(427-66)=875+684-727=14+26=866-183=201×5-399=325-(102+116)=319×3=281-(102+150)=253+137=480-(379-135)=676+985+102=320+(883-746)=335-256-69=488-(277-116)=264+(973-311)=393+369-733=439-172+611=104+341+320=380-82×3=347+(894-868)=206-73=43×(145-140)=642-(55-22)=737-345+890=459-(379-268)=323+267×2=141×5+653=724-(410-247)=642×(295-291)=1/6+2/6=95×5-356=160+159+127=234+872-597=4/8-2/8=384-151=393-208-129=436-29×8=164-125+450=428-(139+286)=101+161=901+426×2=496+(424-229)=255×5-150=334-69×2=501-(37-20)=305-210=852-117+200=27×4+781=136+217-145=58×8+858=532-113=838-345+155=525-72×5=321-64×2=400+(406-297)=347-204-35=379-19-97=744×6-34=125+165-24=75+669+212=269+(519-518)=819-(636-287)=400×2+28=472-(11+20)=82×9-202=268-(118+27)=610+95-88=164×(278-272)=519-261+234=140×5+54=105×4+276=188+544+234=459-(402-30)=40+69+631=495-(207+283)=708×5=143×5-137=387-(711-558)=472-156=667-95=888-42-140=21+344-232=989-264×3=98-53=971-701-249=33+664+72=14+325-235=730-448+583=628×(720-716)=97×(235-228)=281+44×2=147-(49+30)=311-28-278=832×7=373-159-158=162×5-333=523-141×3=229×4-92=306×2-317=246+(617-287)=480-135+111=429-(62+144)=906+773-987=329×2+162=28×(828-820)=98+(331-183)=103×2=223+(420-149)=504-38×9=388-16×4=267-115=472-(181-68)=462-248=123×(70-63)=548×2-534=261×3-239=186-22+126=319-101=540×(913-904)=264+34×2=52+405-183=281+485=31×4+497=194×4-423=293×9-68=189+106-64=860+630+334=245-(137+68)=312-(48+146)=833-(794-528)=392×2-290=851×(826-823)=96×2=405-301=110+974-554=696-(565-224)=368-(42+226)=109×8=940+683=281+(330-26)=157-(284-267)=586×7=52+81=467-(422-313)=2/7+3/7=811-647+85=60×(301-292)=398-(202-99)=131+135+379=249+(364-270)=458+334+72=432-420+90=236×(975-968)=23+136=428-224-23=413+(289-38)=141×(397-392)=232×(484-481)=90-60+209=754-(504-298)=727-344+177=107+457+110=450+176=662×5=623+218=871-337=14×4=685×4-971=162×5=481-257+264=418-229+15=30×(784-778)=460-(384+34)=44×6=637+297-266=5/9+3/9=160+236=603-222+254=394+(429-351)=169-45-60=496-(175+22)=982-81-52=912-(469-19)=2/6-1/6=107×(22-15)=282-32-80=465-152-285=842-215=463×3=104×4+556=82+68=125×2+213=254×(635-626)=82+154=312+480+111=981×(897-894)=493-60×2=897+(562-427)=215-(429-361)=481-(209+196)=474+(476-359)=638×9=583-76×2=705-267-423=437-(280+13)=153-(99+28)=859-390+54=288-109=331+996+812=221×3=329+49+391=28×(213-204)=95+168×5=200-18-172=197+638+174=328+88=311-167-19=749-482+138=458×(780-774)=720-(494-316)=381-242-63=203×3+228=144×(243-238)=440-12×2=45×(112-103)=266+(802-259)=55+138×6=202+228=73×8+165=595-(930-443)=267+513+61=463-435=323-(498-187)=783×2-89=405+37-139=410-55=85-67=260+(622-202)=403×8-910=615-(854-546)=180×3-319=3/6+2/6=160+152+513=829+179=496-90+570=120+42+580=481-142-260=113×3+409=785-135-133=907+(873-575)=105+756+680=449-22×3=716+283-907=499-31-344=179×4=853-247×2=580×3-58=877-284=85×3-109=574+920-894=983-234-400=404-341=236-82=426+362×2=256+93+135=671-370-173=62+370=237+(142-124)=156+(343-29)=230-171+141=279-46+117=69+268=135-(315-281)=755-(56+29)=197×(106-103)=569-(257+91)=605×8-730=69×7+53=160×(112-103)=184×(229-224)=370+(323-291)=310+87-350=195×2+140=205+281=874-258-492=300-30+118=810+556=986+169×5=337×8=669-142×3=163+(450-389)=886-(885-244)=367-17×5=194×2-280=418+212×4=895×(115-111)=参考答案990+690=1680157+171+392=720890-(17+185)=688236-(431-400)=205949+(311-60)=1200978+(644-44)=1578146×6=876173+234=407408×(475-470)=2040433-46×8=65925-487-176=26299×7=693238+274=512416+659+874=1949249+46=295175×(407-403)=70031×2=62271-90-102=79356+(374-355)=375378-80+608=906403-321=82137-22-45=70406×2=812304-115-29=16096×7-270=402584-42×9=2065/8-1/8=4/8173+(494-114)=55387+187=274462+(280-223)=519675+327-549=453398-233+233=39821×9-113=76500-(500-10)=10399-(216+182)=1732-582+830=980902×2=1804135×2=270671-(655-141)=157301-275+377=4035/8-3/8=2/8962-67+762=1657255-(113+15)=127674×(292-284)=5392383-324=59993-323+179=849100×9=900368×2=736638×(630-625)=3190407-337+34=104348×4-155=12371/8+2/8=3/8304-29×2=246106+301=407966-293-607=66749+386+322=1457327+111=438477×6=2862740-373=36759×(473-466)=413104+(600-64)=640172×4-115=573273-(395-301)=179669-144=525232+158=390894-146×5=164670×(877-870)=4690226×4=9044/7-3/7=1/7356-44+50=362895+648+611=2154466-87×3=205477-(279-194)=392442+(427-380)=489820+896-994=722304-148×2=8757-(21+268)=468244+(97-61)=2806/9-2/9=4/9970-(915-874)=929378+763=1141434-(993-725)=166988×8=7904909+(191-63)=1037446-(80+244)=122193-(452-402)=143901-443=458786+196-204=778370+404=774105×6=630226+380-296=310663+952+875=2490433-212+146=367339-(737-631)=233414-159=255214×(976-967)=1926334-311+131=154500-188-31=281484-(310+49)=12539+128×5=679456-34×8=184195-45=15089+122-80=131945×5=4725402-100×4=24/7-2/7=2/7479+350+720=154981×6-297=189278-(91+147)=40194+43=2371/5+4/5=1197+255+896=1348900-(52+221)=627121×4=484126+99-187=3882+318+169=569476-(262-98)=312953-223×3=284530×6-152=3028142+306-322=126718-464=254487-(481-327)=333796×2-189=1403383-59-77=247562×5-649=2161193+537=730289-(346-142)=85187+179-172=194324+114=438234+(382-381)=235415-(238+85)=92415-204-39=17287×(200-194)=522222+70-195=97486-22×5=376840+821-637=1024311-(129+93)=89188-(311-291)=168422-410=121/7+3/7=4/7239+(783-203)=819430×2-56=804192×4+11=779398-69-77=252375+107-85=397437×2=874919+186×2=1291138×7=966444-99=345179-20×7=39770-126×2=518863+167+630=1660117+412+445=974399+(921-429)=891457-232+224=449522+652-838=336116+276-70=322461-38×3=34741×4+237=401239-(612-563)=190479-(110+234)=135659-265=39447×2-44=50390-85-82=223230×7=1610468×5-126=2214178+(721-487)=412453-54-320=79198×2+178=574824-12-758=54902-327+23=59847+(115-64)=98205-78=127363-(316-178)=2252/7+4/7=6/756×(289-286)=168156+314=470166+(876-115)=927516×2=1032325+(321-83)=563641×9-395=5374569×2=1138137-113=24464-35-107=322793+399=119262×(402-399)=186778-(302+346)=130129+144+567=840594-99×6=0467-(310-127)=284429-107+105=427759+506-175=1090189+33×2=255397-(122+89)=186836×9-373=7151269×8-302=185058+661+219=938960-218×3=306470-213×2=4448+33=81261+116-143=234541-(171+287)=83302+639-256=685638-(33+508)=97689+72×7=1193613×(199-192)=42913/8+2/8=5/8187+126=313458-31×2=396464×9=4176626-280=346931+98-415=614360-223+131=268168-(371-303)=100304-136×2=32482-328=154252-63×4=0281+933+847=2061126×7-679=203170-124+231=277217×4=868436+352=788182+248=430342-260+356=438456+(168-157)=46753×3+442=601263-15×2=233474+14-396=92865×3-65=2530650-(211+348)=91541+432×2=140529+(405-400)=34197×(40-37)=59154+11=65480-379+132=233270+118-26=362103-15+550=638620+228=848391-56+116=451275-25×9=50227×6=1362463+605-687=381249-21+272=500689×6-931=3203229+97×4=61738×(106-97)=342106-(586-571)=91404-(307+34)=63180+(318-151)=347927×5=4635284+221+233=738110×9-170=820440+(445-107)=778878+859-250=14874/8-1/8=3/8109+574+101=784167-16×2=135446-(234-79)=291526+464-787=203133-31×4=9481-345+79=215119×4=47682×5+11=42199×2-119=79337+40-357=20173+285=45835+(323-278)=80339+813-588=564403×9=3627792+275+188=1255793×5-511=3454380+455=835269+205+203=677987×3=2961326×(184-181)=978108×7+662=1418511-373-118=20906-334×2=238586-183×2=220410×(878-874)=1640441-20×7=301134×(33-26)=938927-(13+647)=267661-58×5=3712/7-1/7=1/7782-(87+694)=1961-714-51=196444-(667-269)=46815+(689-37)=1467369-270+193=292200-183=172/4-1/4=1/4386-(148+90)=148457+58×4=689619+276×2=1171242+403+118=763133+59=19290×4=360654+421×2=149668×5+34=374595+608-180=1023853-324-419=110756×7-988=4304242+193=435339-80×3=9951×9-242=217876-(405+280)=191159+(370-311)=218303+249×2=801232×3=696178+186-79=285529-(291+129)=109560×3-198=1482808+758-183=1383601-(538-372)=43530×9+687=957979-140=839115×4=460571-204+240=607403+(565-548)=420393-(266+27)=100445×2=890903-(59+574)=270193×3-480=99508+637=1145446-(500-349)=295112+(799-224)=687388-274+223=337223-120-28=75285-34×5=115192×5-656=304431-(306-299)=424443-40×3=323688+404+449=1541296×(280-277)=888367-18-312=37162×3=486296×3-186=702654+153×2=960717+251=968423-293-119=11604-158=446102+367-196=273957-17-243=697474-284-136=54190-40=150462-292+194=364690-95×4=310933-159×3=456591+281×2=1153166×2-95=237835+372+78=1285389+204+310=903430-168=262887-585-282=20200-57×3=29293×3-774=105594+961-36=1519323-(106+80)=137314+57×8=770948-(208+629)=11190×(372-368)=360869-279×3=32319-38×4=167460+835-60=123569+215+809=1093316+519+796=1631798×7=55864/7+2/7=6/7530+37×5=715619-125-236=258846-238-530=78876+219=109540×3-89=31136-27+328=437893-300-194=399922-318=6043/5-1/5=2/5190+466+456=1112434-(120+240)=74185+240-321=104930-502-264=164411+(368-42)=737493-158-88=247935-(936-97)=96175×3+301=826477-55×3=312445-230=215202×4=808272-(30-11)=253256×(150-143)=1792891-469=422276-(471-381)=186192+30×5=342214+183-129=268405-(204+87)=114748-(247+301)=200873+(516-468)=9211/4+3/4=1484+182+722=1388185+949-587=547969-(524+49)=396706+983+466=2155204+655=859517×(604-596)=4136245+191=436750-107+940=1583379-169-169=41285+(632-284)=633757-(381+85)=291355-209=146234×(253-250)=702517-319+33=23122×3+595=661217+103+600=920586+566=1152562-39×8=250810-(442-144)=512416-47=369277×2+343=897416×2-166=666205+50×5=455358+450=808989+421+219=1629716+997+932=264570+223-159=134154+295+788=1237255+180-149=286464-196+86=35495+419-493=21915×(450-444)=5490802-(313+447)=42182-91=91277-79-172=2683×(392-388)=332308+181-61=428426×(931-927)=1704268+193-47=414192×(294-290)=768957-(300+59)=598606-(844-432)=194239×4-790=166715-457=258189×(418-413)=945934×4=3736764+(706-302)=1168477×6-990=187240+(883-673)=250296+442+675=1413301-20×6=181320+116=436398-(156+75)=16762+253=315354-(118+219)=1748×8=384122×(38-35)=366881-425-225=23150×(312-308)=200369+896+249=1514122+170-180=11267+180=247317×(106-103)=951996-(459-255)=792245-140+390=495172+312=484947-(362+127)=458608-223+429=814736×(165-162)=2208730-134=596546-522-23=1678-(329+200)=149304-294=10896-510+780=1166873-(352-323)=844125-47=78314-(105+115)=94771+164×6=1755475×2=950219×(378-370)=1752862-391+965=1436655×6-820=3110438+(362-66)=734308-125-39=144924+977-579=1322956-(594+173)=189402-(329+12)=6115+563+127=705496×2-590=402174×8-423=969472-(328-294)=438102×8+122=9382/3-1/3=1/3451-113×3=112995×(308-300)=7960314+74×5=684949+(914-426)=1437359-236=123879-131+284=1032339-23-15=301907-397=510467-139-108=220432-(109+229)=94669-36+867=150087×9-523=26070×8+408=968744+383+123=1250368-323=45629+611+849=2089456-204+55=307466-321=145220+196=416750+900=1650100×3=300756-(694-644)=706965+(725-443)=1247734+623-871=486482-53-44=385395+286×2=967631+702+348=1681228×2+415=871153+82+450=685268+161×2=590460-13×6=382776×5=388031+46=77769-32×6=577753×9=6777340×2-272=408362+48-205=205500+(261-162)=599220×8=17604/7+3/7=1531+234+235=1000598-45=553592+(817-551)=858334-240=94204-157=47237-218=19261+98=359961-(197+46)=718500+(225-169)=556422-(360-343)=40541×2+88=17014+179+159=352617-443+547=721154×(198-193)=770976-757+417=63663+208-11=26023+135+445=603489-(223-198)=464831-200=631462×6=2772167×5=83525×(384-379)=125174×2-169=179256+443=699925+(167-115)=977655×4=2620591-118×5=1488-38×8=184103×(477-474)=309986-(933-440)=493941-32×4=813413-85-314=14558-(317-308)=549845+91×3=1118992-120-23=849788×7=5516364+(427-66)=725875+684-727=83214+26=40866-183=683201×5-399=606325-(102+116)=107319×3=957281-(102+150)=29253+137=390480-(379-135)=236676+985+102=1763320+(883-746)=457335-256-69=10488-(277-116)=327264+(973-311)=926393+369-733=29439-172+611=878104+341+320=765380-82×3=134347+(894-868)=373206-73=13343×(145-140)=215642-(55-22)=609737-345+890=1282459-(379-268)=348323+267×2=857141×5+653=1358724-(410-247)=561642×(295-291)=25681/6+2/6=3/695×5-356=119160+159+127=446234+872-597=5094/8-2/8=2/8384-151=233393-208-129=56436-29×8=204164-125+450=489428-(139+286)=3101+161=262901+426×2=1753496+(424-229)=691255×5-150=1125334-69×2=196501-(37-20)=484305-210=95852-117+200=93527×4+781=889136+217-145=20858×8+858=1322532-113=419838-345+155=648525-72×5=165321-64×2=193400+(406-297)=509347-204-35=108379-19-97=263744×6-34=4430125+165-24=26675+669+212=956269+(519-518)=270819-(636-287)=470400×2+28=828472-(11+20)=44182×9-202=536268-(118+27)=123610+95-88=617164×(278-272)=984519-261+234=492140×5+54=754105×4+276=696188+544+234=966459-(402-30)=8740+69+631=740495-(207+283)=5708×5=3540143×5-137=578387-(711-558)=234472-156=316667-95=572888-42-140=70621+344-232=133989-264×3=19798-53=45971-701-249=2133+664+72=76914+325-235=104730-448+583=865628×(720-716)=251297×(235-228)=679281+44×2=369147-(49+30)=68311-28-278=5832×7=5824373-159-158=56162×5-333=477523-141×3=100229×4-92=824306×2-317=295246+(617-287)=576480-135+111=456429-(62+144)=223906+773-987=692329×2+162=82028×(828-820)=22498+(331-183)=246103×2=206223+(420-149)=494504-38×9=162388-16×4=324267-115=152472-(181-68)=359462-248=214123×(70-63)=861548×2-534=562261×3-239=544186-22+126=290319-101=218540×(913-904)=4860264+34×2=33252+405-183=274281+485=76631×4+497=621194×4-423=353293×9-68=2569189+106-64=231860+630+334=1824245-(137+68)=40312-(48+146)=118833-(794-528)=567392×2-290=494851×(826-823)=255396×2=192405-301=104110+974-554=530696-(565-224)=355368-(42+226)=100109×8=872940+683=1623281+(330-26)=585157-(284-267)=140586×7=410252+81=133467-(422-313