三年級數(shù)學(xué)(上)計算題專項練習(xí)附答案集錦

三年級數(shù)學(xué)(上)計算題專項練習(xí)附答案集錦51×9+409=684+117+105=388-54×5=854×9=623-288=849-123×5=326+281+730=149×2-195=56×(386-379)=870+904-775=2/5-1/5=466-184=546-(144-39)=625-(660-402)=995-39×2=844-21×3=332+26+329=92+376=483-70×5=398×2-598=480-(260+64)=378-(60+55)=225-(23-20)=568+382+707=320-17=150×(393-389)=311+13+169=149×9=497×6=783-581+865=824-105=435+74=772+907-869=465-243+57=212+514+46=48+263-15=302-106+227=684×9=214+(240-115)=556+858-178=697×8=96×(122-114)=267+(299-39)=936-706+706=348+848+355=385+557=918+13-819=116+231-95=240-(40+190)=27×(850-845)=655-107+998=95+201+32=409×9-437=68+(858-194)=681-(73+312)=824-724=977-499-446=331-(489-165)=589+746-483=58×5-43=343+120-55=108-(24-10)=184-137=1/4+2/4=528+941=65×(783-776)=41×7+428=112×(309-303)=203-61-67=346+(414-148)=747×5-844=112+332+196=465-(377+41)=396+(203-41)=332-268+39=281-265+293=198+205+200=644-176×2=320×2-410=712-13-273=328-(441-276)=99+300=386+264+237=436×2-420=10×(334-325)=591+576-414=263+173-225=858-75-87=30+855+73=624-(559-237)=750-242-276=69+258=156×6-286=733-461=179+158+238=405×(419-415)=113-47×2=22+131×5=880-35+787=263×3-524=58×(269-263)=424×2+44=141-17×6=35×4=154×2+722=579×6-252=88×8-134=158+742=645×4-500=423-(327-253)=56+261=413-141-54=500×7-279=138+686=3/7-1/7=372-29×9=494-53×4=470-336-115=237+54=463+230+200=212×(131-128)=679-415+358=481-29=570×(701-697)=435+(398-161)=385-329=644+134×5=706-(690-190)=81+134=444-98×2=166×2=958+801-22=186+25×5=460-(127+26)=501+(634-300)=201-(431-426)=244+821=987+163+456=243+(473-407)=309+156=500-364-26=745×8-443=509-(984-558)=427+35-168=463+552=232+215=508-(276+106)=707×9=470-459+149=173-(205-107)=723×(167-163)=205×3=615×7-809=784+475+354=191×4-256=361-127-111=594+303=152-122=397-49=1/8+5/8=184×4+212=285×8-907=510×3-296=96×(391-386)=126×(388-382)=628+965+478=431×2=221×(402-399)=859+104×6=574-194-300=945+(339-31)=4/8-1/8=674×5=289-(310-281)=860×(922-919)=391-21×8=98×4=681+950-552=496-70-30=235-(65+143)=636+663+661=121+226=679+79+154=28+213×3=389+(42-15)=294×3=483-48×7=385×5-765=136×7=334×(870-862)=798×6=792-(76+112)=118×2=128+125×6=516-255+675=171×3+759=640-492+215=282+208=4/9+3/9=924-(945-45)=515+318+36=175+(248-147)=437-192=240-(401-219)=891-292×2=207×3=134+954-554=117+318-46=65-(793-731)=25×3=997-379×2=729-198×3=696-564+191=52×5+499=26+301-205=375+980-553=675-579=468+263×2=467-36-328=311-208+179=115×6=849+(546-32)=6/8-1/8=171+(692-618)=769-558=695-(389-233)=242+145-243=369-32×7=416-31-206=993+455+320=100+354-252=44+(831-609)=84+104+465=128+118×6=321×2=39×5+85=314×(350-347)=811-488-103=264-(184+51)=398-(165+172)=1/8+3/8=246+460=781-430=351×(107-101)=15×(485-479)=496-(528-340)=315×3=453+30-269=881-141-149=280×3-162=815-(323+461)=73×(437-434)=3/5-2/5=82+114=172-37-48=80×5=463+466+234=499-42=699-(838-726)=412×2-818=849-645=911-(45+760)=126×4+156=678×4-876=309-219+325=217×3=401-284=691-112×6=891+744=685×(17-14)=105+375-53=822-(576-42)=677-89×4=639+277=157×(76-73)=631×7-732=432-190-78=397+(35-26)=246×4-297=219-80+528=391-(481-454)=145×6=750-486-156=103+(451-295)=984-(456+352)=199×(327-324)=172+111+164=489-(379-98)=16×3+176=249×9=843×2=7/10-3/10=683-220×2=742×(619-616)=4/8-2/8=878-802+803=706-174=453+447=996-(41+72)=704-(469-115)=422-182+130=940-142=91+(203-104)=32×7=423-384+301=320+44×2=707-55×9=98×(237-231)=455-110×4=94+164-19=191+170=539+186+154=447-129×3=131-26+90=450-303+232=563×2-677=380-(300-11)=480-51×9=652+283+912=348-(65+124)=65+29=120+440=254×(544-535)=421-(211-118)=66+94-38=834-300-100=22×(162-159)=449-229=264×2=430+(773-720)=694-406+760=782+121×5=672+971-999=249+119+36=370-45=838+173-853=497-(936-929)=319+930-828=466-182=199×(97-92)=975+329+733=815+876-86=271+(481-400)=497+(512-334)=120+88×6=645+(670-299)=73×8=457-184+25=499-69×7=622+(721-253)=729-76×5=240×3-373=86+402-117=25+737+852=337-(38+152)=352-(165-91)=359+108-121=527-(355+70)=262×(89-86)=38×3-88=959-461×2=392-(241+49)=72+363-386=349×8-584=455-348=521-(780-440)=821-(362-119)=795-(194+484)=471×5-230=114+371=300+(498-74)=636-222=3/6+2/6=333-14-222=25×6+463=322-(64+161)=909×9=200+37=899+232×2=230+200=873-256-591=3/7-2/7=535-173×2=327×7=699-82-258=292-138-35=433-305-16=220×(609-606)=644×(731-728)=186×5=430+21×9=873+88×2=484-193+79=688+149×4=73×8-10=468+487+32=722-55-450=413-342=47-30=380+(997-435)=806×6=452-143+758=310×(86-83)=811-507+509=221-36+291=3/6-2/6=429-324+26=156×3=542×7=49×3-108=613-406+156=596-110-425=48-26+468=877-(74+297)=173-(162-121)=914-39×2=142×(138-131)=798-68×8=355-(140+89)=856+45×7=954-(631-233)=140+300+527=282-168=70×8+583=383-(123+259)=184×(346-342)=263-170+148=434-52×7=912-743-73=682-(214-68)=135×(249-242)=489×2-716=167+122-134=465-220-168=196-(452-414)=412-90×2=10+(552-490)=255+(384-146)=133+(348-128)=432-19×5=310×(63-60)=883-(399-321)=126+835+27=417×2-185=133×(424-417)=332+35+614=93-18×2=428×2+945=757-445+871=93+325+454=58×7+122=13×(267-263)=619-297×2=304-27×8=992+990=64×4+917=119×5-457=599×6=347-110=736+(512-434)=233-(110+96)=475-(159+53)=740-661=597-508=404-38-51=711+(710-213)=214+831-857=105×5=157+120=731-569+454=980-(875+86)=486+(889-376)=225×2+224=28+150=718×5-444=467-(55+382)=1/6+2/6=68×2+903=449-(136-67)=307×3-739=135+67=290+721+200=996-13-651=241+33-218=348-(368-21)=58×3-16=460-316-103=352-(175+104)=156×(19-13)=269-(266-143)=338-17×6=140+224-132=499-(452+14)=357+(299-284)=175+162=130×6-434=326-(372-125)=79×3+172=4/6-2/6=91+560+604=215-37+179=918+63×4=282+584-733=2/10+7/10=348+58-246=470-193×2=445-57-109=389×2=132+(377-127)=304-(436-376)=249+(985-958)=827×7=946-516-54=49×5=345-(85+176)=181+637+24=74+(446-218)=953-(303+479)=452-154+997=273×2=665×5=443×2+836=725+281×2=759-56=872×3-935=90×4=56+13×8=949-71=289×(843-839)=189×5-573=488-61=442-323+189=171×4+41=495-(123+190)=807-229+579=878-(701-104)=381-(388-24)=645+(762-64)=612-(445+76)=799-422+371=228-(290-236)=818+824+551=760-(468+131)=106+389=414-298=66+697-309=968-220×3=370+121=963-(387-94)=318+155+487=459-(166+21)=91-85+84=186+718-557=402-(228+168)=190-88=694+165+119=470-60×4=325-189-49=774-(246+268)=375+75=643+813-461=157-84+898=178+513=2/4-1/4=219+149-140=721-414+129=122×7+27=638-(993-569)=445+254=85+785-128=510×4=964-(614+341)=493-34×9=22×6-121=576+(749-190)=130×(171-165)=307+(470-25)=348-307=302-179=456-(232-132)=211+(197-171)=877-17-542=459-88-259=179+82+451=192+69+235=309×(725-718)=461-125×2=66+221=26×8=337-29×9=460×9=406-195-173=761+305-901=168+597+20=953+734-193=753-67×8=691-361=379-54-86=354-(274-246)=89+128=411+96×4=79+351=436-41×6=134×3-287=315-188-67=623+(762-443)=199×(395-390)=365-169-52=194×5=224×2+459=297+94×9=874-124-605=616×(543-538)=497+351=930-(162+32)=377+(649-34)=485-70×3=323+245+361=186+121×6=430+267×2=55+349+369=41×3-27=437-166=751+150=25×2+70=744+192=431-127=904-656=310-298=23×(133-127)=717×(411-402)=470-(53+265)=198+267-110=717-22-166=44×3=857-(16+144)=61+(864-366)=147-(58+80)=481+617+951=290-(458-422)=613+128+739=133×5=493-176+984=393-(120+155)=135+86-139=411-(284+99)=286×3=90+(897-96)=294+(476-376)=273-19×8=206×(763-755)=989-506-140=24×8=429-280-99=32+275-73=214+47+239=974×6=683+369+680=399+(284-132)=417+(445-197)=206+861+163=37+105×9=356-(146+173)=297-177+167=821×(100-91)=438×2-489=456+(324-226)=77×7-249=891-(678+99)=231+184-327=662-164×4=355+(436-188)=221+214=491+(648-590)=87×2+449=314-232=778+311+613=994-498=180-152+227=491-113=3/4-1/4=770+474=132+(572-419)=218+258-298=102+272=448-(231-208)=108×(492-486)=985×(235-228)=790×3-62=489-(434-309)=682-(33+398)=488-125-74=116×7-216=834×(763-756)=733×7=507-21×8=265×3-161=226+84=120-70=326-11×6=578×5-189=45+69×6=655+(861-684)=461-318=945-(388+133)=995-343+723=115×(930-923)=195+209+89=331-72-19=781-361-370=472-207+330=465×2=291-270=321-(459-159)=1/6+3/6=67×6=440-29×4=845+303-922=798-(926-768)=303+673+409=477+(331-143)=371-(135+94)=321-52-83=802×(656-648)=452+(96-34)=131+193=181+849-830=316-258+17=473-(154+55)=261-64-134=477-63-30=731-147-507=817-(339+112)=232-(106-42)=30+380+168=828-(433+170)=560×8-162=214-30×6=160+93+112=983-369=256+143=457-(294+86)=404-(398-139)=813-(239+420)=724-639+898=187-51×2=265-(424-388)=152×3-115=281-154=965-304+951=479-126×2=757-168-263=699-395=586-132-204=833×4-114=405-368+297=63×(560-551)=321×5-354=171×3-284=332+157×4=409+741-711=85×3=581+505-307=310+(72-69)=84×8=113×(386-378)=414-262=166-107+169=811-(907-757)=437-(482-78)=362+59×8=374-36×5=1/10+6/10=429×2=495×2+119=663×4-567=359-23×6=517+(873-794)=727×5=36×2=898-333=119-26+320=448-168-195=52×6+962=171+245=70+380=923×(367-360)=508-245+995=161×4+125=59×(132-128)=421×2-238=218+641+277=322-240=769-(816-389)=4/7+2/7=239-119+220=449-16-353=18+402-281=38+105×7=536-(797-344)=19×3+934=664+904=316+682-929=446-253+51=477+(199-87)=194+158-74=124+313+62=388+(375-133)=380-174×2=564-78×3=906-(217+573)=104+300-40=236-31×3=353+39×3=572-42=982-314=264-(125+90)=138+234-367=168-49=678-31×2=285+768-406=426-116-75=876-550-37=849-(805-555)=557+440+189=470-26+937=280-(43+98)=193+(466-282)=940+204+125=395-207+28=531+687=461-405+100=370-19-45=496-464=61×5+996=285-269=142×2-134=834-(989-934)=101+498=100+201×3=872+78-482=142+56=889-697+147=292+109-102=3/7+2/7=295×3-714=103+159=411+734=882+(922-177)=10×6+904=389-(112+23)=74+360=522-(311+51)=100+65+60=737+(419-354)=888×(70-64)=171×8-431=292-53+110=3/8+5/8=202+(310-227)=303-99-15=635×2-602=708-75-106=237×(270-261)=參考答案51×9+409=868684+117+105=906388-54×5=118854×9=7686623-288=335849-123×5=234326+281+730=1337149×2-195=10356×(386-379)=392870+904-775=9992/5-1/5=1/5466-184=282546-(144-39)=441625-(660-402)=367995-39×2=917844-21×3=781332+26+329=68792+376=468483-70×5=133398×2-598=198480-(260+64)=156378-(60+55)=263225-(23-20)=222568+382+707=1657320-17=303150×(393-389)=600311+13+169=493149×9=1341497×6=2982783-581+865=1067824-105=719435+74=509772+907-869=810465-243+57=279212+514+46=77248+263-15=296302-106+227=423684×9=6156214+(240-115)=339556+858-178=1236697×8=557696×(122-114)=768267+(299-39)=527936-706+706=936348+848+355=1551385+557=942918+13-819=112116+231-95=252240-(40+190)=1027×(850-845)=135655-107+998=154695+201+32=328409×9-437=324468+(858-194)=732681-(73+312)=296824-724=100977-499-446=32331-(489-165)=7589+746-483=85258×5-43=247343+120-55=408108-(24-10)=94184-137=471/4+2/4=3/4528+941=146965×(783-776)=45541×7+428=715112×(309-303)=672203-61-67=75346+(414-148)=612747×5-844=2891112+332+196=640465-(377+41)=47396+(203-41)=558332-268+39=103281-265+293=309198+205+200=603644-176×2=292320×2-410=230712-13-273=426328-(441-276)=16399+300=399386+264+237=887436×2-420=45210×(334-325)=90591+576-414=753263+173-225=211858-75-87=69630+855+73=958624-(559-237)=302750-242-276=23269+258=327156×6-286=650733-461=272179+158+238=575405×(419-415)=1620113-47×2=1922+131×5=677880-35+787=1632263×3-524=26558×(269-263)=348424×2+44=892141-17×6=3935×4=140154×2+722=1030579×6-252=322288×8-134=570158+742=900645×4-500=2080423-(327-253)=34956+261=317413-141-54=218500×7-279=3221138+686=8243/7-1/7=2/7372-29×9=111494-53×4=282470-336-115=19237+54=291463+230+200=893212×(131-128)=636679-415+358=622481-29=452570×(701-697)=2280435+(398-161)=672385-329=56644+134×5=1314706-(690-190)=20681+134=215444-98×2=248166×2=332958+801-22=1737186+25×5=311460-(127+26)=307501+(634-300)=835201-(431-426)=196244+821=1065987+163+456=1606243+(473-407)=309309+156=465500-364-26=110745×8-443=5517509-(984-558)=83427+35-168=294463+552=1015232+215=447508-(276+106)=126707×9=6363470-459+149=160173-(205-107)=75723×(167-163)=2892205×3=615615×7-809=3496784+475+354=1613191×4-256=508361-127-111=123594+303=897152-122=30397-49=3481/8+5/8=6/8184×4+212=948285×8-907=1373510×3-296=123496×(391-386)=480126×(388-382)=756628+965+478=2071431×2=862221×(402-399)=663859+104×6=1483574-194-300=80945+(339-31)=12534/8-1/8=3/8674×5=3370289-(310-281)=260860×(922-919)=2580391-21×8=22398×4=392681+950-552=1079496-70-30=396235-(65+143)=27636+663+661=1960121+226=347679+79+154=91228+213×3=667389+(42-15)=416294×3=882483-48×7=147385×5-765=1160136×7=952334×(870-862)=2672798×6=4788792-(76+112)=604118×2=236128+125×6=878516-255+675=936171×3+759=1272640-492+215=363282+208=4904/9+3/9=7/9924-(945-45)=24515+318+36=869175+(248-147)=276437-192=245240-(401-219)=58891-292×2=307207×3=621134+954-554=534117+318-46=38965-(793-731)=325×3=75997-379×2=239729-198×3=135696-564+191=32352×5+499=75926+301-205=122375+980-553=802675-579=96468+263×2=994467-36-328=103311-208+179=282115×6=690849+(546-32)=13636/8-1/8=5/8171+(692-618)=245769-558=211695-(389-233)=539242+145-243=144369-32×7=145416-31-206=179993+455+320=1768100+354-252=20244+(831-609)=26684+104+465=653128+118×6=836321×2=64239×5+85=280314×(350-347)=942811-488-103=220264-(184+51)=29398-(165+172)=611/8+3/8=4/8246+460=706781-430=351351×(107-101)=210615×(485-479)=90496-(528-340)=308315×3=945453+30-269=214881-141-149=591280×3-162=678815-(323+461)=3173×(437-434)=2193/5-2/5=1/582+114=196172-37-48=8780×5=400463+466+234=1163499-42=457699-(838-726)=587412×2-818=6849-645=204911-(45+760)=106126×4+156=660678×4-876=1836309-219+325=415217×3=651401-284=117691-112×6=19891+744=1635685×(17-14)=2055105+375-53=427822-(576-42)=288677-89×4=321639+277=916157×(76-73)=471631×7-732=3685432-190-78=164397+(35-26)=406246×4-297=687219-80+528=667391-(481-454)=364145×6=870750-486-156=108103+(451-295)=259984-(456+352)=176199×(327-324)=597172+111+164=447489-(379-98)=20816×3+176=224249×9=2241843×2=16867/10-3/10=4/10683-220×2=243742×(619-616)=22264/8-2/8=2/8878-802+803=879706-174=532453+447=900996-(41+72)=883704-(469-115)=350422-182+130=370940-142=79891+(203-104)=19032×7=224423-384+301=340320+44×2=408707-55×9=21298×(237-231)=588455-110×4=1594+164-19=239191+170=361539+186+154=879447-129×3=60131-26+90=195450-303+232=379563×2-677=449380-(300-11)=91480-51×9=21652+283+912=1847348-(65+124)=15965+29=94120+440=560254×(544-535)=2286421-(211-118)=32866+94-38=122834-300-100=43422×(162-159)=66449-229=220264×2=528430+(773-720)=483694-406+760=1048782+121×5=1387672+971-999=644249+119+36=404370-45=325838+173-853=158497-(936-929)=490319+930-828=421466-182=284199×(97-92)=995975+329+733=2037815+876-86=1605271+(481-400)=352497+(512-334)=675120+88×6=648645+(670-299)=101673×8=584457-184+25=298499-69×7=16622+(721-253)=1090729-76×5=349240×3-373=34786+402-117=37125+737+852=1614337-(38+152)=147352-(165-91)=278359+108-121=346527-(355+70)=102262×(89-86)=78638×3-88=26959-461×2=37392-(241+49)=10272+363-386=49349×8-584=2208455-348=107521-(780-440)=181821-(362-119)=578795-(194+484)=117471×5-230=2125114+371=485300+(498-74)=724636-222=4143/6+2/6=5/6333-14-222=9725×6+463=613322-(64+161)=97909×9=8181200+37=237899+232×2=1363230+200=430873-256-591=263/7-2/7=1/7535-173×2=189327×7=2289699-82-258=359292-138-35=119433-305-16=112220×(609-606)=660644×(731-728)=1932186×5=930430+21×9=619873+88×2=1049484-193+79=370688+149×4=128473×8-10=574468+487+32=987722-55-450=217413-342=7147-30=17380+(997-435)=942806×6=4836452-143+758=1067310×(86-83)=930811-507+509=813221-36+291=4763/6-2/6=1/6429-324+26=131156×3=468542×7=379449×3-108=39613-406+156=363596-110-425=6148-26+468=490877-(74+297)=506173-(162-121)=132914-39×2=836142×(138-131)=994798-68×8=254355-(140+89)=126856+45×7=1171954-(631-233)=556140+300+527=967282-168=11470×8+583=1143383-(123+259)=1184×(346-342)=736263-170+148=241434-52×7=70912-743-73=96682-(214-68)=536135×(249-242)=945489×2-716=262167+122-134=155465-220-168=77196-(452-414)=158412-90×2=23210+(552-490)=72255+(384-146)=493133+(348-128)=353432-19×5=337310×(63-60)=930883-(399-321)=805126+835+27=988417×2-185=649133×(424-417)=931332+35+614=98193-18×2=57428×2+945=1801757-445+871=118393+325+454=87258×7+122=52813×(267-263)=52619-297×2=25304-27×8=88992+990=198264×4+917=1173119×5-457=138599×6=3594347-110=237736+(512-434)=814233-(110+96)=27475-(159+53)=263740-661=79597-508=89404-38-51=315711+(710-213)=1208214+831-857=188105×5=525157+120=277731-569+454=616980-(875+86)=19486+(889-376)=999225×2+224=67428+150=178718×5-444=3146467-(55+382)=301/6+2/6=3/668×2+903=1039449-(136-67)=380307×3-739=182135+67=202290+721+200=1211996-13-651=332241+33-218=56348-(368-21)=158×3-16=158460-316-103=41352-(175+104)=73156×(19-13)=936269-(266-143)=146338-17×6=236140+224-132=232499-(452+14)=33357+(299-284)=372175+162=337130×6-434=346326-(372-125)=7979×3+172=4094/6-2/6=2/691+560+604=1255215-37+179=357918+63×4=1170282+584-733=1332/10+7/10=9/10348+58-246=160470-193×2=84445-57-109=279389×2=778132+(377-127)=382304-(436-376)=244249+(985-958)=276827×7=5789946-516-54=37649×5=245345-(85+176)=84181+637+24=84274+(446-218)=302953-(303+479)=171452-154+997=1295273×2=546665×5=3325443×2+836=1722725+281×2=1287759-56=703872×3-935=168190×4=36056+13×8=160949-71=878289×(843-839)=1156189×5-573=372488-61=427442-323+189=308171×4+41=725495-(123+190)=182807-229+579=1157878-(701-104)=281381-(388-24)=17645+(762-64)=1343612-(445+76)=91799-422+371=748228-(290-236)=174818+824+551=2193760-(468+131)=161106+389=495414-298=11666+697-309=454968-220×3=308370+121=491963-(387-94)=670318+155+487=960459-(166+21)=27291-85+84=90186+718-557=347402-(228+168)=6190-88=102694+165+119=978470-60×4=230325-189-49=87774-(246+268)=260375+75=450643+813-461=995157-84+898=971178+513=6912/4-1/4=1/4219+149-140=228721-414+129=436122×7+27=881638-(993-569)=214445+254=69985+785-128=742510×4=2040964-(614+341)=9493-34×9=18722×6-121=11576+(749-190)=1135130×(171-165)=780307+(470-25)=752348-307=41302-179=123456-(232-132)=356211+(197-171)=237877-17-542=318459-88-259=112179+82+451=712192+69+235=496309×(725-718)=2163461-125×2=21166+221=28726×8=208337-29×9=76460×9=4140406-195-173=38761+305-901=165168+597+20=785953+734-193=1494753-67×8=217691-361=330379-54-86=239354-(274-246)=32689+128=217411+96×4=79579+351=430436-41×6=190134×3-287=115315-188-67=60623+(762-443)=942199×(395-390)=995365-169-52=144194×5=970224×2+459=907297+94×9=1143874-124-605=145616×(543-538)=3080497+351=848930-(162+32)=736377+(649-34)=992485-70×3=275323+245+361=929186+121×6=912430+267×2=96455+349+369=77341×3-27=96437-166=271751+150=90125×2+70=120744+192=936431-127=304904-656=248310-298=1223×(133-127)=138717×(411-402)=6453470-(53+265)=152198+267-110=355717-22-166=52944×3=132857-(16+144)=69761+(864-366)=559147-(58+80)=9481+617+951=2049290-(458-422)=254613+128+739=1480133×5=665493-176+984=1301393-(120+155)=118135+86-139=82411-(284+99)=28286×3=85890+(897-96)=891294+(476-376)=394273-19×8=121206×(763-755)=1648989-506-140=34324×8=192429-280-99=5032+275-73=234214+47+239=500974×6=5844683+369+680=1732399+(284-132)=551417+(445-197)=665206+861+163=123037+105×9=982356-(146+173)=37297-177+167=287821×(100-91)=7389438×2-489=387456+(324-226)=55477×7-249=290891-(678+99)=114231+184-327=88662-164×4=6355+(436-188)=603221+214=435491+(648-590)=54987×2+449=623314-232=82778+311+613=1702994-498=496180-152+227=255491-113=3783/4-1/4=2/4770+474=1244132+(572-419)=285218+258-298=178102+272=374448-(231-208)=425108×(492-486)=648985×(235-228)=6895790×3-62=2308489-(434-309)=364682-(33+398)=251488-125-74=289116×7-216=596834×(763-756)=5838733×7=5131507-21×8=339265×3-161=634226+84=310120-70=50326-11×6=260578×5-189=270145+69×6=459655+(861-684)=832461-318=143945-(388+133)=424995-343+723=1375115×(930-923)=805195+209+89=493331-72-19=240781-361-370=50472-207