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245-185-28=514×7-411=244+232=460+566-194=38×(757-748)=299+114=200×3+425=287+62-309=107-48=165×4-433=940×(107-101)=118×2+903=325-(473-266)=121+(73-48)=22+319-226=300-108=349-293=153+(330-174)=972-682=930+249-679=853+266+519=298-(24+102)=473×3=870-(699-612)=464-(296-68)=587-(162+400)=879-(596+205)=798-196-488=776+(943-631)=363×2=690+33×4=141+315-438=947-51×9=109×6+200=147+322=849+486-232=450-138+837=945-84×8=982-(319+386)=606-445+439=920-55×4=235-73=882-(484+229)=231×8-736=537+834+655=744+15×3=337×2+642=101+(195-70)=596-(341+185)=859×9=15×2=516+119=326-103+71=323+83×3=692-306=302-140=224+165=33+396-328=223+56=243+45=758-(205+174)=667×(115-109)=299+187+181=410-109-47=324+527=93×7=44×3=2/8-1/8=38×(602-595)=481+(364-140)=481-57-211=436-189×2=456-11×7=311+915-258=271×3=997+889-22=772-392-148=165×4+469=121-19×4=113-41×2=158+169-143=860-770+535=388-(66+282)=391-(358-254)=416×6-886=828-200+365=404-21×8=251+287+300=334-107+113=491-46×5=475×2+378=785-572+707=912-126=61×(190-186)=339-210=412-(164+173)=253+50=303×2-253=542+626+775=142-(468-431)=356-50×6=200-46=356+25×5=2/4-1/4=230+163-30=77+261-173=601×5-532=493+(140-41)=32×2+303=235+190-28=53×6+424=319-(430-367)=981+448=770-616+684=231×2-254=820×7-261=633×(69-64)=19×6+585=60+59+53=174×(326-321)=284+586=324+69-79=314×(80-77)=968+753-757=101×9=511+232+684=346-(281-233)=238-12×4=271+(403-232)=19×3=23-(321-316)=326-(164+152)=715+19+517=436-74-169=289+(242-240)=831+(492-455)=216-38+10=998-553-76=830-(830-733)=29+138×7=3/8-2/8=940+(356-175)=268+(515-47)=678-272-179=472-327+20=486+804=293-68×3=80×6-432=321-(57+88)=189×(667-660)=11×9=78×8=491+(367-33)=427+218+314=440-107-112=952-206+585=85×7+93=111-(988-914)=465-21×6=925-466=829×(130-121)=38×8=135×3=371-(492-222)=43+131=843-254+255=761×6-57=462-98-343=698-72×4=422-23×5=595-(439-96)=211+(469-15)=66×(229-220)=144×6=132×7=2/7+4/7=400-114×3=447+(410-349)=954+(664-327)=761-136×4=30+45×7=922-243+423=941+518-386=27+346-280=292-42×6=369+(610-557)=633-(692-159)=78+290+506=356+64×2=490-379+208=642+539+509=406-352+345=918+501-651=313-(333-39)=4/8+2/8=198+157=116+21×5=189×4=177+46×8=797+(845-594)=881+133-70=880-(863-314)=4/7-3/7=325-30×8=242-(303-96)=55×4=495×8=830-48×4=428-(263-148)=928-309=271-255+447=710×8=773-321=183+43×4=224+209+410=254×(69-66)=410-184-126=323+(195-18)=414-(64+280)=38+44-43=952-268-382=486-250=459-183×2=874-682-110=288-132×2=244-51+73=402×6=116×(151-143)=564-48×2=574-(281+84)=912-114×3=478-72×3=314+63×8=497-125×2=71+211×4=55×2=95×2=655-(14+143)=845-(263+270)=299×5-849=95+269=299-10=193+(489-130)=772-(124-57)=746+731-90=519+807=783+450-472=892+525=440-138+137=419+209×3=372×(935-932)=98×(158-151)=486-126×3=433×2=123+234+344=2/6-1/6=611-190×2=167×8=326×3-85=163+576+775=221×(437-433)=461-47=58+162+260=5/10+3/10=411-391=131×(220-217)=401-(196+36)=768×(536-532)=428-17×6=534×9=229×(60-56)=128×4-77=368-46×6=812-341-101=49×6+249=404-(414-140)=157-(299-225)=394-56×4=213+355=805×2-210=72×6=79-70+491=858-322-247=492-(211-142)=217-186+193=350+871+160=389-351+247=61+27-80=572+158+124=455×(258-254)=249-(426-274)=487-383=839-(556-220)=965-569=833+(654-19)=78×3+100=2/5-1/5=209×6-56=428+(271-41)=148×(124-120)=430-(361-36)=998-423×2=147+642=121×3=157+939+232=950-673-30=266×2-291=122×2-106=401-225+31=50+246=340-(57+148)=467-315+346=353+88=405-(212+155)=451-162-271=755+(928-306)=795-479-47=336+(369-180)=625-64=269+72=852-534-149=982-19×6=951+764-99=271×6-167=106-(31+36)=40×(106-97)=864-545=760×7=104-11=52×(464-458)=286×(278-275)=134+(776-539)=705+919-929=446-121+208=496+968+698=320-10-120=269-(421-284)=211+256-24=846×3-798=778-(930-400)=251×7=807-(460-126)=345×4=301-196+266=237+104-250=24-(166-142)=936-153+904=400-161-189=85×8-540=491-(152+131)=713+(902-84)=334-21×8=627-199-232=236-228+453=6/10-2/10=77+244+213=493-63×6=620-(301-297)=465-(173-23)=384+100=184-25-81=576-(986-621)=979-58=346+224+32=784-64-704=236-28×8=385-86-220=435+462+85=167+(946-699)=601+928+909=65+339=197×(469-461)=187+397=452-(87+253)=533+(900-391)=321-227+367=184×(364-359)=615-(654-479)=227×2=894-557-57=285+185=784-490+580=261-167=266-110×2=483-154=260×3-46=436-387+993=907-108+607=266-83-91=215×9-980=885+(681-371)=971+497-809=120×(192-185)=443×9=621-496-24=60-20+170=918+(558-457)=763-(538+208)=316-175=471-(10+279)=34+(391-28)=758-(722-300)=377+215=551+941+310=292-19+572=465+765+310=276-11-158=586+162+107=780+(67-66)=965-284=949+291×2=544+823=491-(195+120)=818×7-159=158+253-286=91+478+411=107+(243-53)=716+598-557=278+194+397=283×(76-73)=515-198+494=40×(300-292)=795-281-455=557-326=162-42+261=80+310-259=191+62=352+71×6=548-473+77=216×(327-324)=570-(111+159)=3/7-2/7=295-199+300=244-(228-124)=621-51×9=351+91-217=388-26×6=62-49=413-(601-594)=405-191=646-(405+141)=589+(765-181)=233-82+337=70+115-29=414+162×6=289+33+404=939-(78+63)=465×2-365=290×(341-338)=762-(479-436)=387×7-308=799+254+885=917-326×2=828+423×2=381-(396-55)=661-17×9=46+(316-244)=340-272+76=300×3=366+359+15=508×(97-88)=777-(99+85)=808-(275+205)=322-(454-206)=58×7+237=803-(464+288)=774-656=194-(314-132)=473+13×9=943-288+581=296-(151+79)=141×4-209=624+505-190=234+246-279=291+191=864-(344+495)=207×3+890=3/10+7/10=190+647=78×2+326=448-(305-221)=348-262=515+265=761+(476-163)=379+(676-312)=182×4=904-(352+348)=442+(410-245)=456+(320-131)=458+247=196+146+380=430-(258+126)=523+(920-142)=810-316=103×9=607×3-296=99×4-34=13×4+287=217+75=321-129+203=781-62-280=165+(441-330)=223×2-155=289-98=145+265=610+501+952=61×2+209=21×9+24=712-(538-453)=257+206+457=432-(106+185)=941×6=147×6-860=622-530+606=862×(62-56)=897×9-989=451-95-307=23×(351-346)=110×8-669=153×(352-347)=713-308+407=945-284×3=113+118=164+309=329-106-29=1/6+2/6=300-(154+118)=196×3-512=941-(492-482)=574-182×2=485-(123+97)=737-253-81=344-(70+229)=230×4=105×7-650=379-76=501-279-39=414+(96-94)=272-103-47=2/7-1/7=54+13+101=284+653+57=751-387=361-(366-150)=385+336+765=271-156+248=38×4+130=714×3-743=146×6=488-309=492+120+122=169-(139-107)=417+47-90=828-53=525+78+318=115×7=1/8+6/8=354-(55+257)=154×4-351=39×(113-106)=72×(329-322)=68×3-79=250-208+226=308×2+374=382×7-212=40×4+88=683+484=741-103×7=869-335-291=62×9-294=424+56-258=239-(27+91)=368-204=406-178=463-95=45×9-144=424+35-367=879-827=310×3=2/7+3/7=515+207=315+950-805=108+(448-220)=77×8+210=3/4-1/4=3/7-1/7=100×(433-424)=875-(142+674)=821-248-479=775×9=538-(21+440)=187×(221-216)=85×(349-344)=425+(392-290)=110×8=256-55+145=27×(134-127)=303-89-206=253-84-163=485-457=81×2=118×3+187=328-(528-345)=789-(138+212)=342+(576-141)=400-254-53=65+218×2=346-(104+169)=180+53-33=521+31+281=780×9=394-31-298=741×(980-973)=533+864+938=107+795-668=238+871+523=789-173×3=337-39-55=799×(432-424)=406-82-241=371-121+82=818+250+704=836+632-120=390×4-446=246×4-386=79×2=581+(172-14)=51×(259-256)=432-179×2=139×(385-382)=363+94-80=250+199=111×8-122=712-(244+280)=524+(713-619)=343-59-41=132-(110+11)=423-221+20=288-(342-129)=183+194+41=189×5=41+727+51=296-(74+109)=34+(427-118)=785-(949-441)=481-(140+96)=853-363-277=545+623+971=330×(759-756)=122×6-80=222+(304-58)=858+717=660-(326+215)=289+160=978-(598-435)=453-180-42=590-(780-593)=139+155=472+261=725-(203-119)=286+91=358+983=241×2+58=238+199=87+209=432+380+185=221×2=246+(351-202)=933+922-531=24×3+404=433-39×2=127×3-212=246+205=483-327=435+(166-130)=647-22×4=981×(543-540)=202+765=958-70+965=547+439-498=563+897+724=149×3=192×3=761-72×4=260+(108-51)=768-23×9=489-55-57=407×9-698=347×(977-968)=30+(258-87)=933+(952-721)=641×(29-21)=954-125×4=489+(199-46)=538+(443-97)=196-21×3=920×8=625-544=961+402-946=414-155-161=408-46-49=40+28×6=597×(861-853)=605-202=265+88=352-315=328+514=918+127-53=3/5+2/5=786+30+102=141+197×5=715×2-762=347+40+902=26×(28-22)=686-247=420-104×2=211×3-573=785-660+683=268×(964-961)=985-665+844=826×3=134+344-304=1/8+3/8=229×2=311+161-290=115-92+409=476+276×2=226-206+330=366×2+219=316×9=908-822+587=357-(289-264)=95×4-251=434-(293-70)=206+206=493-(485-14)=429-(231+181)=99+318×2=414-100×4=164+131+124=163-43=676+(598-516)=88+46-55=7/9+2/9=541-390=87×6=229×3-283=218+414-593=889-(299+483)=92×8-183=415-257-28=883-(50+161)=810-322-433=812-28+434=690-169+74=116+309-306=572+43×4=734+309+68=114×7=941-706-64=189-100=149+345=717-(278-226)=415+16×6=845-(401+240)=747×9=847+975=408-392=902×(295-291)=119-(63-53)=650×8=116+83×4=905-(586-446)=110×(299-290)=215-180=117+235×3=662-(882-708)=631+122×4=208×(503-496)=894×(23-19)=379-(772-687)=879+893-237=464×2+446=199-125=760-492=252+(636-397)=148-35×4=25+(736-443)=247-19-100=538+270×3=951+316=368×2+326=925+19×3=88+625+181=394-(264+65)=935-110-815=658-(243-211)=366+49-366=900-(539+46)=780+297+737=348-53-263=4/7+2/7=292×4=257+(494-237)=34×(420-411)=241+324=184×3+378=867-(256+141)=415-284=343-62×3=633×5-936=43+191-228=143+21+464=259×(477-474)=312-(110+110)=198-(113-25)=225×4-582=342-(189+121)=551-94=577×4-316=125+277-262=326-295=979-412-416=179+972+962=273×6-127=414+561-479=785+447+631=550-103+958=311-115+255=439-121×2=20×(335-329)=905-624=468+(500-56)=108×(129-122)=168×5-297=283×4-238=487-268-114=223×2+316=105+249-106=629-176×3=156×5-733=750+905-430=948-(110+685)=316-34-152=43+214=281×5=685-(578+52)=605+970+523=899-292+695=174×4-328=112+581+164=332+89=540×3-851=496-311+240=260+193+426=899-426×2=203+59-114=75+316=444-235-187=441-17×6=451-177=623×7=3/6-2/6=3/7+2/7=参考答案245-185-28=32514×7-411=3187244+232=476460+566-194=83238×(757-748)=342299+114=413200×3+425=1025287+62-309=40107-48=59165×4-433=227940×(107-101)=5640118×2+903=1139325-(473-266)=118121+(73-48)=14622+319-226=115300-108=192349-293=56153+(330-174)=309972-682=290930+249-679=500853+266+519=1638298-(24+102)=172473×3=1419870-(699-612)=783464-(296-68)=236587-(162+400)=25879-(596+205)=78798-196-488=114776+(943-631)=1088363×2=726690+33×4=822141+315-438=18947-51×9=488109×6+200=854147+322=469849+486-232=1103450-138+837=1149945-84×8=273982-(319+386)=277606-445+439=600920-55×4=700235-73=162882-(484+229)=169231×8-736=1112537+834+655=2026744+15×3=789337×2+642=1316101+(195-70)=226596-(341+185)=70859×9=773115×2=30516+119=635326-103+71=294323+83×3=572692-306=386302-140=162224+165=38933+396-328=101223+56=279243+45=288758-(205+174)=379667×(115-109)=4002299+187+181=667410-109-47=254324+527=85193×7=65144×3=1322/8-1/8=1/838×(602-595)=266481+(364-140)=705481-57-211=213436-189×2=58456-11×7=379311+915-258=968271×3=813997+889-22=1864772-392-148=232165×4+469=1129121-19×4=45113-41×2=31158+169-143=184860-770+535=625388-(66+282)=40391-(358-254)=287416×6-886=1610828-200+365=993404-21×8=236251+287+300=838334-107+113=340491-46×5=261475×2+378=1328785-572+707=920912-126=78661×(190-186)=244339-210=129412-(164+173)=75253+50=303303×2-253=353542+626+775=1943142-(468-431)=105356-50×6=56200-46=154356+25×5=4812/4-1/4=1/4230+163-30=36377+261-173=165601×5-532=2473493+(140-41)=59232×2+303=367235+190-28=39753×6+424=742319-(430-367)=256981+448=1429770-616+684=838231×2-254=208820×7-261=5479633×(69-64)=316519×6+585=69960+59+53=172174×(326-321)=870284+586=870324+69-79=314314×(80-77)=942968+753-757=964101×9=909511+232+684=1427346-(281-233)=298238-12×4=190271+(403-232)=44219×3=5723-(321-316)=18326-(164+152)=10715+19+517=1251436-74-169=193289+(242-240)=291831+(492-455)=868216-38+10=188998-553-76=369830-(830-733)=73329+138×7=9953/8-2/8=1/8940+(356-175)=1121268+(515-47)=736678-272-179=227472-327+20=165486+804=1290293-68×3=8980×6-432=48321-(57+88)=176189×(667-660)=132311×9=9978×8=624491+(367-33)=825427+218+314=959440-107-112=221952-206+585=133185×7+93=688111-(988-914)=37465-21×6=339925-466=459829×(130-121)=746138×8=304135×3=405371-(492-222)=10143+131=174843-254+255=844761×6-57=4509462-98-343=21698-72×4=410422-23×5=307595-(439-96)=252211+(469-15)=66566×(229-220)=594144×6=864132×7=9242/7+4/7=6/7400-114×3=58447+(410-349)=508954+(664-327)=1291761-136×4=21730+45×7=345922-243+423=1102941+518-386=107327+346-280=93292-42×6=40369+(610-557)=422633-(692-159)=10078+290+506=874356+64×2=484490-379+208=319642+539+509=1690406-352+345=399918+501-651=768313-(333-39)=194/8+2/8=6/8198+157=355116+21×5=221189×4=756177+46×8=545797+(845-594)=1048881+133-70=944880-(863-314)=3314/7-3/7=1/7325-30×8=85242-(303-96)=3555×4=220495×8=3960830-48×4=638428-(263-148)=313928-309=619271-255+447=463710×8=5680773-321=452183+43×4=355224+209+410=843254×(69-66)=762410-184-126=100323+(195-18)=500414-(64+280)=7038+44-43=39952-268-382=302486-250=236459-183×2=93874-682-110=82288-132×2=24244-51+73=266402×6=2412116×(151-143)=928564-48×2=468574-(281+84)=209912-114×3=570478-72×3=262314+63×8=818497-125×2=24771+211×4=91555×2=11095×2=190655-(14+143)=498845-(263+270)=312299×5-849=64695+269=364299-10=289193+(489-130)=552772-(124-57)=705746+731-90=1387519+807=1326783+450-472=761892+525=1417440-138+137=439419+209×3=1046372×(935-932)=111698×(158-151)=686486-126×3=108433×2=866123+234+344=7012/6-1/6=1/6611-190×2=231167×8=1336326×3-85=893163+576+775=1514221×(437-433)=884461-47=41458+162+260=4805/10+3/10=8/10411-391=20131×(220-217)=393401-(196+36)=169768×(536-532)=3072428-17×6=326534×9=4806229×(60-56)=916128×4-77=435368-46×6=92812-341-101=37049×6+249=543404-(414-140)=130157-(299-225)=83394-56×4=170213+355=568805×2-210=140072×6=43279-70+491=500858-322-247=289492-(211-142)=423217-186+193=224350+871+160=1381389-351+247=28561+27-80=8572+158+124=854455×(258-254)=1820249-(426-274)=97487-383=104839-(556-220)=503965-569=396833+(654-19)=146878×3+100=3342/5-1/5=1/5209×6-56=1198428+(271-41)=658148×(124-120)=592430-(361-36)=105998-423×2=152147+642=789121×3=363157+939+232=1328950-673-30=247266×2-291=241122×2-106=138401-225+31=20750+246=296340-(57+148)=135467-315+346=498353+88=441405-(212+155)=38451-162-271=18755+(928-306)=1377795-479-47=269336+(369-180)=525625-64=561269+72=341852-534-149=169982-19×6=868951+764-99=1616271×6-167=1459106-(31+36)=3940×(106-97)=360864-545=319760×7=5320104-11=9352×(464-458)=312286×(278-275)=858134+(776-539)=371705+919-929=695446-121+208=533496+968+698=2162320-10-120=190269-(421-284)=132211+256-24=443846×3-798=1740778-(930-400)=248251×7=1757807-(460-126)=473345×4=1380301-196+266=371237+104-250=9124-(166-142)=0936-153+904=1687400-161-189=5085×8-540=140491-(152+131)=208713+(902-84)=1531334-21×8=166627-199-232=196236-228+453=4616/10-2/10=4/1077+244+213=534493-63×6=115620-(301-297)=616465-(173-23)=315384+100=484184-25-81=78576-(986-621)=211979-58=921346+224+32=602784-64-704=16236-28×8=12385-86-220=79435+462+85=982167+(946-699)=414601+928+909=243865+339=404197×(469-461)=1576187+397=584452-(87+253)=112533+(900-391)=1042321-227+367=461184×(364-359)=920615-(654-479)=440227×2=454894-557-57=280285+185=470784-490+580=874261-167=94266-110×2=46483-154=329260×3-46=734436-387+993=1042907-108+607=1406266-83-91=92215×9-980=955885+(681-371)=1195971+497-809=659120×(192-185)=840443×9=3987621-496-24=10160-20+170=210918+(558-457)=1019763-(538+208)=17316-175=141471-(10+279)=18234+(391-28)=397758-(722-300)=336377+215=592551+941+310=1802292-19+572=845465+765+310=1540276-11-158=107586+162+107=855780+(67-66)=781965-284=681949+291×2=1531544+823=1367491-(195+120)=176818×7-159=5567158+253-286=12591+478+411=980107+(243-53)=297716+598-557=757278+194+397=869283×(76-73)=849515-198+494=81140×(300-292)=320795-281-455=59557-326=231162-42+261=38180+310-259=131191+62=253352+71×6=778548-473+77=152216×(327-324)=648570-(111+159)=3003/7-2/7=1/7295-199+300=396244-(228-124)=140621-51×9=162351+91-217=225388-26×6=23262-49=13413-(601-594)=406405-191=214646-(405+141)=100589+(765-181)=1173233-82+337=48870+115-29=156414+162×6=1386289+33+404=726939-(78+63)=798465×2-365=565290×(341-338)=870762-(479-436)=719387×7-308=2401799+254+885=1938917-326×2=265828+423×2=1674381-(396-55)=40661-17×9=50846+(316-244)=118340-272+76=144300×3=900366+359+15=740508×(97-88)=4572777-(99+85)=593808-(275+205)=328322-(454-206)=7458×7+237=643803-(464+288)=51774-656=118194-(314-132)=12473+13×9=590943-288+581=1236296-(151+79)=66141×4-209=355624+505-190=939234+246-279=201291+191=482864-(344+495)=25207×3+890=15113/10+7/10=1190+647=83778×2+326=482448-(305-221)=364348-262=86515+265=780761+(476-163)=1074379+(676-312)=743182×4=728904-(352+348)=204442+(410-245)=607456+(320-131)=645458+247=705196+146+380=722430-(258+126)=46523+(920-142)=1301810-316=494103×9=927607×3-296=152599×4-34=36213×4+287=339217+75=292321-129+203=395781-62-280=439165+(441-330)=276223×2-155=291289-98=191145+265=410610+501+952=206361×2+209=33121×9+24=213712-(538-453)=627257+206+457=920432-(106+185)=141941×6=5646147×6-860=22622-530+606=698862×(62-56)=5172897×9-989=7084451-95-307=4923×(351-346)=115110×8-669=211153×(352-347)=765713-308+407=812945-284×3=93113+118=231164+309=473329-106-29=1941/6+2/6=3/6300-(154+118)=28196×3-512=76941-(492-482)=931574-182×2=210485-(123+97)=265737-253-81=403344-(70+229)=45230×4=920105×7-650=85379-76=303501-279-39=183414+(96-94)=416272-103-47=1222/7-1/7=1/754+13+101=168284+653+57=994751-387=364361-(366-150)=145385+336+765=1486271-156+248=36338×4+130=282714×3-743=1399146×6=876488-309=179492+120+122=734169-(139-107)=137417+47-90=374828-53=775525+78+318=921115×7=8051/8+6/8=7/8354-(55+257)=42154×4-351=26539×(113-106)=27372×(329-322)=50468×3-79=125250-208+226=268308×2+374=990382×7-212=246240×4+88=248683+484=1167741-103×7=20869-335-291=24362×9-294=264424+56-258=222239-(27+91)=121368-204=164406-178=228463-95=36845×9-144=261424+35-367=92879-827=52310×3=9302/7+3/7=5/7515+207=722315+950-805=460108+(448-220)=33677×8+210=8263/4-1/4=2/43/7-1/7=2/7100×(433-424)=900875-(142+674)=59821-248-479=94775×9=6975538-(21+440)=77187×(221-216)=93585×(349-344)=425425+(392-290)=527110×8=880256-55+145=34627×(134-127)=189303-89-206=8253-84-163=6485-457=2881×2=162118×3+187=541328-(528-345)=145789-(138+212)=439342+(576-141)=777400-254-53=9365+218×2=501346-(104+169)=73180+53-33=200521+31+281=833780×9=7020394-31-298=65741×(980-973)=5187533+864+938=2335107+795-668=234238+871+523=1632789-173×3=270337-39-55=243799×(432-424)=6392406-82-241=83371-121+82=332818+250+704=1772836+632-120=1348390×4-446=1114246×4-386=59879×2=158581+(172-14)=73951×(259-256)=153432-179×2=74139×(385-382)=417363+94-80=377250+199=449111×8-122=766712-(244+280)=188524+(713-619)=618343-59-41=243132-(110+11)=11423-221+20=222288-(342-129)=75183+194+41=418189×5=94541+727+51=819296-(74+109)=11334+(427-118)=343785-(949-441)=277481-(140+96)=245853-363-277=213545+623+971=2139330×(759-756)=990122×6-80=652222+(304-58)=468858+717=1575660-(326+215)=119289+160=449978-(598-435)=815453-180-42=231590-(780-593)=403139+155=294472+261=733725-(203-119)=641286+91=377358+983=1341241×2+58=540238+199=43787+209=296432+380+185=997221×2=442246+(351-202)=395933+922-531=132424×3+404=476433-39×2=355127×3-212=169246+205=451483-327=156435+(166-130)=471647-22×4=559981×(543-540)=2943202+765=967958-70+965=1853547+439-498=488563+897+724=2184149×3=447192×3=576761-72×4=473260+(108-51)=317768-23×9=561489-55-57=377407×9-698=2965347×(977-968)=312330+(258-87)=201933+(952-721)=1164641×(29-21)=5128954-125×4=454489+(199-46)=642538+(443-97)=884196-21×3=133920×8=7360625-544=81961+402-946=417414-155-161=98408-46-49=31340+28×6=208597×(861-853)=4776605-202=403265+88=353352-315=37328+514=842918+127-53=9923/5+2/5=1786+30+102=91