三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦

三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦567+445-320=926-141=750-160+939=257-256+184=2/5-1/5=173-(105+39)=477-149+62=73×(128-120)=975-427-516=261-29-27=257-(77+107)=511+159=292+135=144×(121-117)=317-203+85=925-(664-159)=306×3-84=567×(383-375)=282-(11+133)=675-475+237=485×4-535=448+274+616=335×(530-526)=522-(12+69)=292×9=76-12×4=719×(76-67)=440×2=126+303-171=903-(985-772)=199-35×3=964-(670+49)=618×7=923+959+920=811-36=282×2+96=919-565+156=54×(372-369)=142+18×7=3/6-1/6=51×8+619=734-(160-118)=205+(314-129)=454×2+216=683-449-201=979-489=103+75=226+124=545×7=656+54-307=21×2=681×9-191=712×(643-637)=539-300+707=8/10-1/10=268-190+353=773-698+204=107+255-207=566-345=773+188=321×4-666=883-(680-669)=361+(217-183)=450-287-152=140-32-94=652-634=420-62×2=326-51=344+137-314=827-95×8=683-(12+411)=598+152=503+54×6=25×8+120=2/8+3/8=805-(246+70)=13+480-375=439+158+985=531+359-691=504×7-899=74×4=312-21×4=983-412+508=361-(184+86)=447+(272-21)=473-114-241=473-426+20=209×(317-314)=429×(178-171)=552×8=761-90×3=105×8+155=314+120×3=641-34=14+38×8=695×(838-831)=495-49×9=377+828+408=998-95×5=734×6-19=118+304-173=353-215+25=470-(485-240)=900-(869-222)=419-68×5=998-(82+37)=138×(54-46)=358-116-193=203-57+173=113+131=125×(456-449)=466-117-74=44+311+832=157+622+24=253-(42+67)=115×8-215=461×(743-735)=246+146-332=26×9=989-(736-678)=780-507=321+(335-271)=533-377+874=348+86×3=422-87+133=341+486=499-336=195×4=607-317-135=315-21-27=244×5-535=429-41×2=93×8-422=109×6+304=269-(131-95)=72×8-477=607+(506-137)=171-112+912=888-106-367=238-(459-242)=450×8=775-(316-309)=907-296=101×5+152=83+(998-438)=761+569+924=563-403+468=129×5=14×5+96=661+(717-628)=437-(480-101)=377-51-180=196+398+16=423-(495-428)=570-(167-144)=330-(948-622)=124+263×3=267-127=779+(697-332)=741-20=167+(267-256)=983-641=763+218+680=121+293-213=384-(106+31)=446-356=488+234×3=217+600=255×3=441+119×4=674-449-33=805-446-354=730-134×3=769-489+416=671×(211-205)=202+(577-120)=65×4+973=496-(86+258)=814×7-202=554+(707-476)=824-61-684=276+(328-146)=424+(302-25)=431-333=163+232-275=279+20×9=395-150-89=217×(228-225)=645-(560+16)=250×3=14×(351-347)=258×7-897=6/10+4/10=58×7=79+416=138+121+235=393+49-198=304×2=341-47×4=560+913+287=925+112×7=89×(240-235)=897-(331-268)=211-80×2=82+256=202×4=953-(922-218)=958×7=519-266=178+267=132×6-442=45-32=78+342=200-(579-398)=212-18-123=335-279+368=240+471=528-333-59=182-(96-43)=379-210=25×4=210-25+25=75+113+799=41+309+363=55+658-118=216-(304-123)=524-(843-459)=461×(495-487)=489-139×3=456-(179-63)=408-55×5=109×(424-419)=204+756=4/8+2/8=944-12×4=380-13=80-(115-52)=31+199-46=407×9=359+98-41=96×8+171=154×5-199=309-177-106=332+67-343=818-338+238=737-(27+221)=169×2-47=264-110×2=121+231-115=66-23×2=424-(124+106)=942-211-50=602+102+212=4/8+3/8=354-(306+17)=381-(391-323)=469-118-56=588+577-989=249×4=142+129×4=622×2=127×6-545=391+302=102-84=56+330=468-(89+356)=564-(728-561)=55×2-21=3/8-1/8=665+28×6=58×(403-397)=273×3+717=243-64=625-187=291+135-29=311+141=471-98-344=906+979-769=469-45-327=746+179=183-143+80=192×2+356=394+(352-144)=936-313+684=238+476-18=130+297=281-(373-142)=276-(57-32)=374-22=224-81=407+(779-513)=133+76=718-(593-309)=225×(268-265)=401-306=535+722-530=200+(609-605)=720+583-230=226-(271-102)=961-489-135=800-22×3=25×3=484-250+985=456-375=46+81+533=281×3=292-29×5=123×(277-272)=120-20+236=900×(770-765)=189+(39-24)=349-189+264=617+831-16=188+752=956-704+318=666+67-126=484-72×3=96×7-359=489+429+17=173-126=326-280+226=132+335=562-(102+190)=456×(189-185)=144+75=165×(418-414)=291-(95+54)=33×4-51=849-376+159=121×2+607=497+948-765=174-(396-271)=4/7-1/7=948+(935-860)=970-445=442-(130-104)=379×2=438-59=900+562+152=427×9=61×8-428=121-100+220=313+95=397-39×9=400-(279+63)=214×4-277=763-27+636=459×2+432=819+630+242=68×5+33=249×6-20=990-(341+234)=181×4+190=73×(400-396)=720-240-307=126+25+387=108×8=145-12×3=57+663+206=389+813=430-209-104=125+44×8=387-(22+78)=429-104-245=825-(608+79)=655×6=286-(593-521)=326-12×2=915-(131+688)=391×7=180×2=50×7=111+83×3=202×9-477=127×7-135=470-92-12=957-127-462=460-174-216=486-269+146=18×(353-347)=339+(389-100)=248×(169-166)=211+(922-442)=836-765+128=4/8-2/8=448-141+131=591-444+743=59×2=448+(170-106)=456-25×8=59×(456-452)=208+727-30=1/6+4/6=859-72-210=260×3+42=415-(609-325)=534×6=46×2=549×5=86×(434-430)=727-75×6=85×(494-490)=341+80=563+(888-414)=933-(710-519)=535×7-36=417-184-126=247+(196-159)=399-(87+13)=630+111+206=198+201-353=63+79×2=620+(982-248)=984+675=402+90-403=1/8+3/8=95+(474-350)=364-77-151=338+137×4=388-153×2=172+14+654=283-28×6=816-(912-487)=32+406-22=527+960+50=145-43-14=356×(268-262)=618-385=115+166×2=20+906+54=109×4-427=73×6-148=748+296-84=348+272=866-366-180=314+(490-115)=456-(256+186)=469+154-369=153×(112-109)=212-(67+27)=490+396+135=994-(646-354)=93+587+201=916-(197-75)=138+842+393=351-80-47=259+109-19=962-881+856=779-60×7=331-309=65+76=21+248-97=480-(38+385)=215+(381-142)=40×7=212+86-73=951-(56+861)=151+125+573=486-(53+136)=402×3-86=5/9+3/9=488+683-974=941-102×9=337+764-442=569+654=286+250+26=2/7+5/7=51×5-120=34×4=332×2-539=351-262+291=662×2=393×2-184=218+267=796-53-724=853-127=159-148+30=188×(311-307)=497-120×4=407-(479-316)=306×4-19=732+705+740=210+260=250+875+443=431-277=42×9-212=332+79=233-(72+31)=284-136×2=847+146+355=91+19×5=291×4-615=946+446-308=471-(202-134)=227+123×5=398-69-227=797-60×7=907-(161+687)=352-42=880+384×2=67×9-538=324-163=2/3-1/3=349-239=562×9-205=65+62+733=479-(379+100)=271+(634-560)=419-(179-46)=129×7-785=728+(919-625)=635+(918-871)=911-153=930-255-123=441-(116+88)=45+259=554-55×5=179-(87+14)=174×4=42+165-143=125+359=184+158=77×3=225+169=868-(406+256)=15+982+92=489+77+868=2/8+6/8=736-502=268-(20-19)=500+131×3=98-(265-173)=331+31-362=99×3+177=904-744+122=3/7-2/7=328-162+208=27+77+499=438+381+166=429-77-124=292-212=120-86=720-62-579=319+904-757=192+(456-330)=183-11×9=113×6+472=198×4-105=339×4-42=348+266+178=451×2+634=954-33×7=714-60×4=113+459+694=361-259=96+398=43+37×8=720+174×4=445-98+92=391-179-190=776+(175-161)=974-669=668×6-542=304×7=170×5-239=697×(666-657)=109×(410-402)=847-810=17×9+371=495-(103+290)=36×(90-84)=401-(117+248)=179-164=486×2=874-(428-48)=824-717+150=232+360+175=296×2-301=272×(356-353)=656-552=158+(159-79)=343+218×2=387-82-50=902+14+985=464+492+44=449+46-70=101+455+391=356+(332-140)=232+254-361=712-363+444=116×(190-186)=237-(463-300)=430×4-103=369+(778-119)=914-60-469=56×4=331×3-309=67+176+783=592+395+32=980+379-852=141×5+114=39+107×6=98+774-611=325-(353-262)=97×(60-56)=358+(843-509)=422-167-182=689×3=297-25×5=202-41×4=237-(13+164)=480+589=460+126×3=940-226×4=391+305+230=829-236×2=348×2+818=627-542=729-(234+461)=57×7+199=502×(833-830)=668-148×4=349+50-275=924-(365+360)=987+682-526=340+(390-113)=565-70+105=806-(375+87)=127+24=423-(24+306)=500-(99+112)=72-(352-334)=968+828+573=862×2=447-(248-59)=43×2+444=23+132+344=30+125+546=235+(621-518)=144-87=113+103+17=186+652+48=3/7-1/7=219×3-463=117+324=219+160=178×6-621=908×9=60+218=458+838+776=411+(289-213)=471-(35+268)=898-(159+482)=403-226=84-(147-105)=384-346=375-(378-359)=43×9-89=286×3-669=468-323=63×4=438-(41+393)=945-407-123=288-(242+36)=907-507+445=142+161-36=104-83+382=390×(769-763)=227+239=699-(66+413)=466-(430-386)=649-425=591-111×3=824-341×2=732-302-186=78×6-61=768-(523-29)=124-25-56=685-640+81=264+580=965×(879-875)=489-395+317=748×(387-379)=173+740-686=291-(103+44)=269+162=2/4-1/4=87×4=139×(354-349)=126-82+293=580+93+21=498×7=749-91×7=416-(56+96)=778-(11+200)=32×7+93=180-102+339=4/9+3/9=997-(877+71)=178-73+286=106×6-11=350-(267+23)=407-54-104=34×8=636×(717-712)=579×(923-920)=325-302=415×(66-61)=606+166=708-73×2=397-198×2=372-298+152=233+111-215=932+117×6=607×7=313-134-171=197-15+207=443+(466-365)=155+469+164=107-(224-166)=269-76×2=457-(540-304)=775+(956-303)=496×2=381-226+134=420+25+84=302-69-174=462+(430-149)=821-(222+593)=422+(286-114)=644×(104-100)=865-(57+37)=103×3=211-(300-168)=599-376=3/4-1/4=547+170+266=333+795=74+(897-298)=685-145+681=85+151=493-27×5=87+224=461-121-151=942+(985-886)=550+187+259=185+315=159+493=634+945-766=406-(184-69)=211×3+266=176-44×2=181+(397-136)=173×6-912=155-(210-204)=921+(961-831)=801×2=911×(974-967)=452+942-750=150+199+248=413-270=383+28-106=151-16-64=310+(110-22)=464×2-422=319-(75+145)=135×(270-261)=1/4+3/4=415+66-291=314×7-85=372-75-275=113×(191-186)=495-247-185=232+147-104=615×(517-508)=408+(645-260)=495-37×3=492×(507-499)=135+(479-455)=324-219+106=487-156-145=98×6+57=333×(120-117)=949-(407+253)=314+141-197=839+389-596=386×(774-767)=468-113+33=967-373=313-48-242=825-194+95=5/7-1/7=977-371×2=381+(21-20)=251-10×8=391+400+224=955+274=264×4=133×2-12=641+249×3=567-37×9=413×2+672=218+89=222+16×7=438+(322-238)=483+(878-213)=297+(338-297)=551-(162-106)=482-(179-62)=850+482-462=299×2=744+933-873=273-42×6=533×7-963=169+98=487-464+438=878+(359-345)=452-25-130=788-(283+366)=711+(967-738)=94+282=77×9+307=218-87×2=852-203=156+94=677×6=866+(393-189)=101×2-192=469+(863-852)=388-(414-308)=82×(95-91)=839×6-39=178-123-44=713-551=941×4=328-(72+136)=399-80×3=181+350=953-681+841=398+(451-145)=97×3=517-68×2=247-(138-132)=84×(185-179)=890-164×4=487×7-774=149×(59-53)=687+31×9=250+301+144=108×8-751=299×5-922=76+(415-284)=737+233=957+284-989=135×5=205-69=321-86-163=685-(824-715)=302×3=967×(128-119)=769-82=1/6+3/6=276-38=685-85×4=參考答案567+445-320=692926-141=785750-160+939=1529257-256+184=1852/5-1/5=1/5173-(105+39)=29477-149+62=39073×(128-120)=584975-427-516=32261-29-27=205257-(77+107)=73511+159=670292+135=427144×(121-117)=576317-203+85=199925-(664-159)=420306×3-84=834567×(383-375)=4536282-(11+133)=138675-475+237=437485×4-535=1405448+274+616=1338335×(530-526)=1340522-(12+69)=441292×9=262876-12×4=28719×(76-67)=6471440×2=880126+303-171=258903-(985-772)=690199-35×3=94964-(670+49)=245618×7=4326923+959+920=2802811-36=775282×2+96=660919-565+156=51054×(372-369)=162142+18×7=2683/6-1/6=2/651×8+619=1027734-(160-118)=692205+(314-129)=390454×2+216=1124683-449-201=33979-489=490103+75=178226+124=350545×7=3815656+54-307=40321×2=42681×9-191=5938712×(643-637)=4272539-300+707=9468/10-1/10=7/10268-190+353=431773-698+204=279107+255-207=155566-345=221773+188=961321×4-666=618883-(680-669)=872361+(217-183)=395450-287-152=11140-32-94=14652-634=18420-62×2=296326-51=275344+137-314=167827-95×8=67683-(12+411)=260598+152=750503+54×6=82725×8+120=3202/8+3/8=5/8805-(246+70)=48913+480-375=118439+158+985=1582531+359-691=199504×7-899=262974×4=296312-21×4=228983-412+508=1079361-(184+86)=91447+(272-21)=698473-114-241=118473-426+20=67209×(317-314)=627429×(178-171)=3003552×8=4416761-90×3=491105×8+155=995314+120×3=674641-34=60714+38×8=318695×(838-831)=4865495-49×9=54377+828+408=1613998-95×5=523734×6-19=4385118+304-173=249353-215+25=163470-(485-240)=225900-(869-222)=253419-68×5=79998-(82+37)=879138×(54-46)=1104358-116-193=49203-57+173=319113+131=244125×(456-449)=875466-117-74=27544+311+832=1187157+622+24=803253-(42+67)=144115×8-215=705461×(743-735)=3688246+146-332=6026×9=234989-(736-678)=931780-507=273321+(335-271)=385533-377+874=1030348+86×3=606422-87+133=468341+486=827499-336=163195×4=780607-317-135=155315-21-27=267244×5-535=685429-41×2=34793×8-422=322109×6+304=958269-(131-95)=23372×8-477=99607+(506-137)=976171-112+912=971888-106-367=415238-(459-242)=21450×8=3600775-(316-309)=768907-296=611101×5+152=65783+(998-438)=643761+569+924=2254563-403+468=628129×5=64514×5+96=166661+(717-628)=750437-(480-101)=58377-51-180=146196+398+16=610423-(495-428)=356570-(167-144)=547330-(948-622)=4124+263×3=913267-127=140779+(697-332)=1144741-20=721167+(267-256)=178983-641=342763+218+680=1661121+293-213=201384-(106+31)=247446-356=90488+234×3=1190217+600=817255×3=765441+119×4=917674-449-33=192805-446-354=5730-134×3=328769-489+416=696671×(211-205)=4026202+(577-120)=65965×4+973=1233496-(86+258)=152814×7-202=5496554+(707-476)=785824-61-684=79276+(328-146)=458424+(302-25)=701431-333=98163+232-275=120279+20×9=459395-150-89=156217×(228-225)=651645-(560+16)=69250×3=75014×(351-347)=56258×7-897=9096/10+4/10=158×7=40679+416=495138+121+235=494393+49-198=244304×2=608341-47×4=153560+913+287=1760925+112×7=170989×(240-235)=445897-(331-268)=834211-80×2=5182+256=338202×4=808953-(922-218)=249958×7=6706519-266=253178+267=445132×6-442=35045-32=1378+342=420200-(579-398)=19212-18-123=71335-279+368=424240+471=711528-333-59=136182-(96-43)=129379-210=16925×4=100210-25+25=21075+113+799=98741+309+363=71355+658-118=595216-(304-123)=35524-(843-459)=140461×(495-487)=3688489-139×3=72456-(179-63)=340408-55×5=133109×(424-419)=545204+756=9604/8+2/8=6/8944-12×4=896380-13=36780-(115-52)=1731+199-46=184407×9=3663359+98-41=41696×8+171=939154×5-199=571309-177-106=26332+67-343=56818-338+238=718737-(27+221)=489169×2-47=291264-110×2=44121+231-115=23766-23×2=20424-(124+106)=194942-211-50=681602+102+212=9164/8+3/8=7/8354-(306+17)=31381-(391-323)=313469-118-56=295588+577-989=176249×4=996142+129×4=658622×2=1244127×6-545=217391+302=693102-84=1856+330=386468-(89+356)=23564-(728-561)=39755×2-21=893/8-1/8=2/8665+28×6=83358×(403-397)=348273×3+717=1536243-64=179625-187=438291+135-29=397311+141=452471-98-344=29906+979-769=1116469-45-327=97746+179=925183-143+80=120192×2+356=740394+(352-144)=602936-313+684=1307238+476-18=696130+297=427281-(373-142)=50276-(57-32)=251374-22=352224-81=143407+(779-513)=673133+76=209718-(593-309)=434225×(268-265)=675401-306=95535+722-530=727200+(609-605)=204720+583-230=1073226-(271-102)=57961-489-135=337800-22×3=73425×3=75484-250+985=1219456-375=8146+81+533=660281×3=843292-29×5=147123×(277-272)=615120-20+236=336900×(770-765)=4500189+(39-24)=204349-189+264=424617+831-16=1432188+752=940956-704+318=570666+67-126=607484-72×3=26896×7-359=313489+429+17=935173-126=47326-280+226=272132+335=467562-(102+190)=270456×(189-185)=1824144+75=219165×(418-414)=660291-(95+54)=14233×4-51=81849-376+159=632121×2+607=849497+948-765=680174-(396-271)=494/7-1/7=3/7948+(935-860)=1023970-445=525442-(130-104)=416379×2=758438-59=379900+562+152=1614427×9=384361×8-428=60121-100+220=241313+95=408397-39×9=46400-(279+63)=58214×4-277=579763-27+636=1372459×2+432=1350819+630+242=169168×5+33=373249×6-20=1474990-(341+234)=415181×4+190=91473×(400-396)=292720-240-307=173126+25+387=538108×8=864145-12×3=10957+663+206=926389+813=1202430-209-104=117125+44×8=477387-(22+78)=287429-104-245=80825-(608+79)=138655×6=3930286-(593-521)=214326-12×2=302915-(131+688)=96391×7=2737180×2=36050×7=350111+83×3=360202×9-477=1341127×7-135=754470-92-12=366957-127-462=368460-174-216=70486-269+146=36318×(353-347)=108339+(389-100)=628248×(169-166)=744211+(922-442)=691836-765+128=1994/8-2/8=2/8448-141+131=438591-444+743=89059×2=118448+(170-106)=512456-25×8=25659×(456-452)=236208+727-30=9051/6+4/6=5/6859-72-210=577260×3+42=822415-(609-325)=131534×6=320446×2=92549×5=274586×(434-430)=344727-75×6=27785×(494-490)=340341+80=421563+(888-414)=1037933-(710-519)=742535×7-36=3709417-184-126=107247+(196-159)=284399-(87+13)=299630+111+206=947198+201-353=4663+79×2=221620+(982-248)=1354984+675=1659402+90-403=891/8+3/8=4/895+(474-350)=219364-77-151=136338+137×4=886388-153×2=82172+14+654=840283-28×6=115816-(912-487)=39132+406-22=416527+960+50=1537145-43-14=88356×(268-262)=2136618-385=233115+166×2=44720+906+54=980109×4-427=973×6-148=290748+296-84=960348+272=620866-366-180=320314+(490-115)=689456-(256+186)=14469+154-369=254153×(112-109)=459212-(67+27)=118490+396+135=1021994-(646-354)=70293+587+201=881916-(197-75)=794138+842+393=1373351-80-47=224259+109-19=349962-881+856=937779-60×7=359331-309=2265+76=14121+248-97=172480-(38+385)=57215+(381-142)=45440×7=280212+86-73=225951-(56+861)=34151+125+573=849486-(53+136)=297402×3-86=11205/9+3/9=8/9488+683-974=197941-102×9=23337+764-442=659569+654=1223286+250+26=5622/7+5/7=151×5-120=13534×4=136332×2-539=125351-262+291=380662×2=1324393×2-184=602218+267=485796-53-724=19853-127=726159-148+30=41188×(311-307)=752497-120×4=17407-(479-316)=244306×4-19=1205732+705+740=2177210+260=470250+875+443=1568431-277=15442×9-212=166332+79=411233-(72+31)=130284-136×2=12847+146+355=134891+19×5=186291×4-615=549946+446-308=1084471-(202-134)=403227+123×5=842398-69-227=102797-60×7=377907-(161+687)=59352-42=310880+384×2=164867×9-538=65324-163=1612/3-1/3=1/3349-239=110562×9-205=485365+62+733=860479-(379+100)=0271+(634-560)=345419-(179-46)=286129×7-785=118728+(919-625)=1022635+(918-871)=682911-153=758930-255-123=552441-(116+88)=23745+259=304554-55×5=279179-(87+14)=78174×4=69642+165-143=64125+359=484184+158=34277×3=231225+169=394868-(406+256)=20615+982+92=1089489+77+868=14342/8+6/8=1736-502=234268-(20-19)=267500+131×3=89398-(265-173)=6331+31-362=099×3+177=474904-744+122=2823/7-2/7=1/7328-162+208=37427+77+499=603438+381+166=985429-77-124=228292-212=80120-86=34720-62-579=79319+904-757=466192+(456-330)=318183-11×9=84113×6+472=1150198×4-105=687339×4-42=1314348+266+178=792451×2+634=1536954-33×7=723714-60×4=474113+459+694=1266361-259=10296+398=49443+37×8=339720+174×4=1416445-98+92=439391-179-190=22776+(175-161)=790974-669=305668×6-542=3466304×7=2128170×5-239=611697×(666-657)=6273109×(410-402)=872847-810=3717×9+371=524495-(103+290)=10236×(90-84)=216401-(117+248)=36179-164=15486×2=972874-(428-48)=494824-717+150=257232+360+175=767296×2-301=291272×(356-353)=816656-552=104158+(159-79)=238343+218×2=779387-82-50=255902+14+985=1901464+492+44=1000449+46-70=425101+455+391=947356+(332-140)=548232+254-361=125712-363+444=793116×(190-186)=464237-(463-300)=74430×4-103=1617369+(778-119)=1028914-60-469=38556×4=224331×3-309=68467+176+783=1026592+395+32=1019980+379-852=507141×5+114=81939+107×6=68198+774-611=261325-(353-262)=23497×(60-56)=388358+(843-509)=692422-167-182=73689×3=2067297-25×5=172202-41×4=38237-(13+164)=60480+589=1069460+126×3=838940-226×4=36391+305+230=926829-236×2=357348×2+818=1514627-542=85729-(234+461)=3457×7+199=598502×(833-830)=1506668-148×4=76349+50-275=124924-(365+360)=199987+682-526=1143340+(390-113)=617565-70+105=600806-(375+87)=344127+24=151423-(24+306)=93500-(99+112)=28972-(352-334)=54968+828+573=2369862×2=1724447-(248-59)=25843×2+444=53023+132+344=49930+125+546=701235+(621-518)=338144-87=57113+103+17=233186+652+48=8863/7-1/7=2/7219×3-463=194117+324=441219+160=379178×6-621=447908×9=817260+218=278458+838+776=2072411+(289-213)=487471-(35+268)=168898-(159+482)=257403-226=17784-(147-105)=42384-346=38375-(378-359)=35643×9-89=298286×3-669=189468-323=14563×4=252438-(41+393)=4945-407-123=415288-(242+36)=10907-507+445=845142+161-36=267104-83+382=403390×(769-763)=2340227+239=466699-(66+413)=220466-(430-386)=422649-425=224591-111×3=258824-341×2=142732-302-186=24478×6-61=407768-(523-29)=274124-25-56=43685-640+81=126264+580=844965×(879-875)=3860489-395+317=411748×(387-379)=5984173+740-686=227291-(103+44)=144269+162=4312/4-1/4=1/487×4=348139×(354-349)=695126-82+293=337580+93+21=694498×7=3486749-91×7=112416-(56+96)=264778-(11+200)=56732×7+93=317180-102+339=4174/9+3/9=7/9997-(877+71)=49178-73+286=391106×6-11=625350-(267+23)=60407-54-104=24934×8=272636×(717-712)=3180579×(923-920)=1737325-302=23415×(66-61)=2075606+166=772708-73×2=562397-198×2=1372-298+152=226233+111-215=12