三年級數(shù)學(上)計算題專項練習附答案集錦

三年級數(shù)學(上)計算題專項練習附答案集錦89+(43-21)=952+86×9=348+89-156=876-(254-97)=459-149-149=823×6=619+632-906=764-(247+196)=72+(395-317)=669×6-206=150+290-144=424×2-211=284-52×3=480-32=154×5=414×6-879=67+68=411×2-171=271+201=716×2-229=89×8=825×6-803=274×2+108=813×(648-643)=497-110-100=743-128-289=11×8+319=884-473=762-174×3=410+60-279=513+324+159=354-(332-44)=86+67-69=889×3-793=102×3+406=766×2=305-(275-28)=236×4=420+308=313-63-158=305-258=25+(807-28)=69×2=89×3=39×5=886×4-364=328×(728-719)=134+211+94=149-73×2=300-15×4=309-(279+29)=79×5-330=5/9-1/9=131+27+244=319×(359-353)=109+200-172=489+(497-393)=108-(244-216)=690×(430-423)=609+775+401=460×6-761=238-94+339=32+162+489=715+854=108-77+416=174×8=845-(317-70)=182×3-20=316-129-114=202+273+15=224-23×2=979-940=95×5-337=887+900+613=545-(56+152)=59×3-143=298-148×2=157×(209-206)=38×(352-349)=61×(211-208)=31+540+180=192+663-811=241-(179+43)=112+180=368-288=103+131=165×5+423=595×(533-529)=766-587+335=150+231-158=278-71+68=908+802=379+566+351=435-(303-59)=555-99-215=208×3+367=395+(306-97)=940-201×2=67×(239-236)=440×(493-489)=931-445-329=410-(274+23)=768×6-617=624-242=22×7+941=964-112-825=398×(898-894)=729-351×2=180×2+45=794-135×2=121+40+260=702+942+740=363+(421-92)=251×2+207=101+327=142×(458-454)=502-16+62=219×2=249-(419-240)=261-49+286=267+78-322=224×4-37=114+108+742=745+222-620=147×4=261+405=437+(481-288)=886-(353+41)=751×(481-477)=619+336+185=870-139-485=854+283-787=844+(860-761)=501+679=149+283=111+674+901=71+348+387=31+154=403×8-339=171×(93-90)=319-59×5=373-157×2=417+556+220=605×3-163=103-91+175=35×7=153×(396-393)=255×3=321-56×5=841-366-258=510-410=657-224+155=433-(189+28)=795-15=175+38=337-106-217=593-147-209=125+393+425=415×5=328+123-276=169-79=234+151=237-13=779×8=234+79×3=543+159+259=866-703=305×2=189+49-93=398-366+174=117+795+321=767+988+106=124×5+366=230-160=164+425=584-407-100=156+316×2=342+161×2=762×3-586=469-190×2=656+(306-125)=385-255+293=446+(397-268)=920-494+320=262+636+886=91+60-27=31×9+383=86×8+702=912-85×6=697×7=458-130×2=450-41=656-107×5=22×4=799+770=591×(332-325)=207-32=229-195=881-164=554×(353-349)=374-(94+247)=496+723=383-(445-107)=536×2-318=77×(732-727)=289-20×5=928×6=205+318-408=472-339=237×2+926=492-245=883-(271+198)=213+123-209=386-305+217=264-(11+31)=314+214+344=801-(556-433)=473-(47-44)=765-46=452×2-754=140+(128-78)=455-(157+119)=719+37×2=105×4+92=453+19+105=865+280-686=270+239=249+(488-324)=4/8-3/8=345-278+528=620+829+641=160×2-28=464-150=590+437-408=670-(351+162)=446-375=307-109=5/9+2/9=679×8-536=454-437+314=468-69×4=782-567-101=244×3+908=154-(546-507)=247-(156-40)=258+(929-324)=626+684+848=777+576-830=405-18×5=59×4+464=335-240=983+55×8=967-163-404=105+(411-363)=882+(729-45)=367-(22+270)=363×2=345+187+513=150+666+157=211+163+62=403-(398-153)=163×(268-262)=3/7-1/7=2/8+5/8=387-(95+27)=427-79×4=23×2=325-167+86=432-320=458-17×9=93×4-252=827-(531-103)=346+(828-620)=125-(535-469)=534×7-460=924-(139+484)=1/7+2/7=386-333+419=37+(827-56)=57+150=759-528+863=289×3=485-197=4/8-2/8=64+(713-30)=194-23×3=42+234-247=326-109+174=109+129+681=159+161-152=807+469-451=379×2=73+153+668=114×(349-341)=412+70=490-116-136=356-299-52=693×7=302+(366-271)=146×(477-474)=30×6+152=773+14×2=56+231+263=424-230+213=396-67×5=436-359+267=168+(379-88)=528×(183-176)=71+291=739-60-336=770-55-294=712+(210-156)=46×7+656=404-363=164×4+367=124-82+239=478-332+740=21+115=146+332-365=825+736+843=376+426-416=332+47×9=408×3-684=169+319=212-81+67=474+352×2=593-(453-237)=714-(329+133)=310+117=628×3-483=463-114-328=554×8-980=769+677=756-357×2=486+(467-408)=64×9=363-(20+38)=239×3-708=940-186+711=469-(15+147)=676-219×3=483-447+60=584-(798-635)=436-17×9=403+35+57=482-186×2=3/4-1/4=890-(248+353)=333-108-134=369-47×2=527×(466-461)=386+(451-287)=209-37-85=280×3=887-27-302=765+879+655=283×(378-375)=97+172+96=264-28×7=39×7=178+119×2=865-(160+585)=188×4-501=692×(399-391)=514×5=590-169+122=183+441=396+103=468-(254+122)=650+535-141=370-(27+13)=229+(482-451)=125×3=425-(144-34)=330-30+126=637-389-141=141×4=682-322=175+(421-316)=672-248=732+(884-785)=838-166-543=78+52=274-(368-243)=233+351+377=459-(987-565)=178-26=701+903+132=692-548+134=544×4=451-85-80=390-(483-148)=53×4=52×8-319=168+272=981-(931-664)=163×9-903=949-86×6=109×(385-382)=841-581+35=184+304-173=875-148-119=250+311×2=113+208+566=271-(117-14)=892+711-706=472-136×3=282-40×2=151+354×2=829-316=353-86+30=598×(736-728)=459+(155-94)=289-134-22=797+(520-301)=180×5-679=315-(92+81)=603-(260+37)=274+95+379=36×(82-73)=461+(390-261)=368+154=433-149-213=443-33+664=172×4-632=420×5=263+234=75×3+449=465-214×2=145-133+561=460-114-27=578+227-194=993-35×2=825-473=30×(391-386)=312-(291+11)=471-33×2=57×2=161+143=241+676+57=461×3=288+(489-423)=266-38-202=875-(619-454)=395-(340-10)=1/6+2/6=3/6-2/6=305-265+52=650×(664-661)=412-(242-54)=4/8+2/8=946+393+785=44×(170-166)=484-(238-163)=1/3+2/3=436-(482-154)=460+38×7=780×(355-349)=783-337-99=828+723+183=86+55+668=419-(455-301)=486-(471-93)=30×4=303×2-455=390-103×3=206-81×2=341-314=201×2+636=91×8=884+225-908=35+64×9=118+464=723-(24+512)=340×2-262=494-160=791-167-587=391-131+132=641+640+300=575×5-391=281-78×3=959-(414-221)=362-(943-733)=16×9+142=55+366-294=17×9=19×4=18×(377-371)=854-(265+529)=996-367+539=75×9=131+203=342×2=343×8-787=235+141=265×2-226=729+103-176=746-(29+177)=802+208-912=42+124-56=978-(100+744)=86+391=482+(180-16)=410-(303+92)=458-37×3=458-136+752=904-579=531-202-265=848-264-244=354-75×4=161×4=207-65×2=256-150-18=3/6+2/6=452+926=130+64×8=470+26-482=153-90-63=856-(217+639)=704+192=836-(258+537)=754-31×2=619+(604-34)=13+440×2=190×(690-684)=859×8-223=511+33×8=409×(622-619)=948×6=311-39×7=942-(204+377)=67+307=951-645=315×3=172-(291-265)=109+350=971-128×7=738-360=257+158=267+(456-407)=117×(177-173)=406-(484-468)=335-203=15×4=988+(557-155)=580+(647-325)=3/8-2/8=58×7-82=199+45+93=195×5+313=219-(78+11)=355×2+188=65×(971-967)=491+(676-574)=735-322×2=976-299×2=782×4-592=928-(253+456)=389-(92+181)=329-209-115=824-185×3=893-478-286=429-(56+286)=447-139-241=303-(88+109)=461-119=423+46×9=196+713=6/7-1/7=353-145+21=21×4=636-(478+82)=954-754=232×4-862=264×3-600=385-293-43=203+934+128=943-35-230=169-39=941+699+651=479-(72+113)=357-148-195=616+361=750-(866-293)=139+84=321-262=409-345+94=579-318+473=393-32×8=776×6=235×6-271=687-133+310=337+(357-287)=132-39=323-(141+113)=91+398-318=414-98-227=805-16=302×8=827+35-452=59+805+10=363-(282+38)=997-(183+666)=72-31+289=115×6-436=879-528+691=320×3-662=100+352=989-861=675-(208-17)=46+353-320=870-162×5=151×2-139=456-(470-290)=427+(762-135)=909-332-349=598-52×2=338-297+192=287×2+274=822-651+323=276+759-129=182+476+181=191×(247-244)=652-(921-271)=170×(351-347)=154×(268-265)=511+(931-356)=500-84-117=167×(634-625)=500-(170+67)=407+420×2=381-63=101-75+148=226×4+779=876-27-93=549+127×6=823+(624-107)=250+54×5=385×2-727=540+18+494=497-450=103+256=204+969-136=195-48=214×7=3/8+4/8=214+501+60=704+832-602=227+(290-157)=43+204×2=426-182-197=129×(77-71)=587+435-565=281-44×6=383×2=293+104=272×3-741=372-15×2=104+(353-158)=5/8-3/8=208+(105-58)=439-(341+66)=84+363=125×(404-397)=119+260-237=36×(233-224)=423+236=571×(116-110)=497+(543-64)=91×8-471=473-276-140=386+256+76=121-(74-17)=177+492=224+96-251=537+125×6=495-413+209=441+317+147=24×(50-41)=241+237-160=833-488+384=491×(511-503)=233×5=668-456+898=3/7+4/7=486+(494-305)=554+63×5=249+(782-638)=168+29×7=861-(825-576)=463-201-113=139-(180-123)=42×(242-239)=99×7+164=151×4+266=1/8+4/8=695-(937-485)=239-(250-193)=720-(38+389)=108×3=854-127×4=415-118-33=133+220=484-271=487-51=202+635-39=448-51+581=942-(178+383)=309-22×5=218×(188-185)=539+808-294=837×(736-730)=164+299-257=629×(685-681)=982-233+710=336-(114+158)=208-188+296=998-(771-234)=488-(342-15)=397-162-205=977-153-361=810×(640-636)=24+311×3=344-46-47=113+495=478-210×2=178×3=126×7=270-(452-275)=724-461+613=107×(69-61)=643-630=624-(615-389)=910-(681+175)=649-334-68=44×(480-474)=470-(38+339)=421+(260-118)=304+69-30=403×9-360=20+127×4=716-323=409-19×7=140+143-83=107+118+211=849-519-243=791+234=244+696-316=509+879-584=992-422-569=291+133×7=152-(17+37)=234×(131-128)=177+(303-186)=159+125×3=112×(497-490)=180+292-304=494-357-108=118+183-76=198-(371-326)=82×(456-450)=106+39-117=45+(315-220)=835-(163+127)=453+87+105=198-160=409+851+175=536×6-895=174×7=355+(389-216)=468×4=865×2=106-42=243-(20+32)=436+(493-431)=87+(194-59)=403-116×2=435-41-114=394-(545-155)=8/10+2/10=301-(339-64)=229+70-94=261+952=691-(523-287)=731-(114+381)=170×3-453=343+496-547=288+(863-716)=153+956-493=424-(204-120)=163+947=2/6-1/6=910-769=330-(173+76)=13×4+149=35+(933-254)=894-(528+31)=17×(63-58)=90+159-61=12×4+348=222-(258-64)=822-(608-94)=572+(690-499)=3/7-2/7=214-(414-342)=416×(384-377)=3/7+2/7=844-(11+743)=156×4=185×5-494=691+(618-263)=841-(769+44)=97×(195-186)=230-(157-140)=238-82+602=437×2-511=288+258+202=5/10-3/10=243×9-574=406-21+516=476-68×7=57×3-141=959+922=984+23-822=987-335+634=363×2-528=367-(299+59)=750-(801-726)=144-114+183=842-209×4=208+734-927=291-81-68=179+683+830=431-(138+58)=406+98+138=272-151=709-34=829+13×6=206+(477-36)=303-14×9=697+424=471-16+85=914-691=649×5=248-69=602-381=82+76=156×2=247-172=362-233+49=187-(129-43)=408+(614-116)=589×3-484=313+420+86=89+151=39×8+336=213+264=367-255+211=587-(615-435)=134×6-400=663+(501-70)=430+(945-866)=625-625+848=553-(732-430)=參考答案89+(43-21)=111952+86×9=1726348+89-156=281876-(254-97)=719459-149-149=161823×6=4938619+632-906=345764-(247+196)=32172+(395-317)=150669×6-206=3808150+290-144=296424×2-211=637284-52×3=128480-32=448154×5=770414×6-879=160567+68=135411×2-171=651271+201=472716×2-229=120389×8=712825×6-803=4147274×2+108=656813×(648-643)=4065497-110-100=287743-128-289=32611×8+319=407884-473=411762-174×3=240410+60-279=191513+324+159=996354-(332-44)=6686+67-69=84889×3-793=1874102×3+406=712766×2=1532305-(275-28)=58236×4=944420+308=728313-63-158=92305-258=4725+(807-28)=80469×2=13889×3=26739×5=195886×4-364=3180328×(728-719)=2952134+211+94=439149-73×2=3300-15×4=240309-(279+29)=179×5-330=655/9-1/9=4/9131+27+244=402319×(359-353)=1914109+200-172=137489+(497-393)=593108-(244-216)=80690×(430-423)=4830609+775+401=1785460×6-761=1999238-94+339=48332+162+489=683715+854=1569108-77+416=447174×8=1392845-(317-70)=598182×3-20=526316-129-114=73202+273+15=490224-23×2=178979-940=3995×5-337=138887+900+613=2400545-(56+152)=33759×3-143=34298-148×2=2157×(209-206)=47138×(352-349)=11461×(211-208)=18331+540+180=751192+663-811=44241-(179+43)=19112+180=292368-288=80103+131=234165×5+423=1248595×(533-529)=2380766-587+335=514150+231-158=223278-71+68=275908+802=1710379+566+351=1296435-(303-59)=191555-99-215=241208×3+367=991395+(306-97)=604940-201×2=53867×(239-236)=201440×(493-489)=1760931-445-329=157410-(274+23)=113768×6-617=3991624-242=38222×7+941=1095964-112-825=27398×(898-894)=1592729-351×2=27180×2+45=405794-135×2=524121+40+260=421702+942+740=2384363+(421-92)=692251×2+207=709101+327=428142×(458-454)=568502-16+62=548219×2=438249-(419-240)=70261-49+286=498267+78-322=23224×4-37=859114+108+742=964745+222-620=347147×4=588261+405=666437+(481-288)=630886-(353+41)=492751×(481-477)=3004619+336+185=1140870-139-485=246854+283-787=350844+(860-761)=943501+679=1180149+283=432111+674+901=168671+348+387=80631+154=185403×8-339=2885171×(93-90)=513319-59×5=24373-157×2=59417+556+220=1193605×3-163=1652103-91+175=18735×7=245153×(396-393)=459255×3=765321-56×5=41841-366-258=217510-410=100657-224+155=588433-(189+28)=216795-15=780175+38=213337-106-217=14593-147-209=237125+393+425=943415×5=2075328+123-276=175169-79=90234+151=385237-13=224779×8=6232234+79×3=471543+159+259=961866-703=163305×2=610189+49-93=145398-366+174=206117+795+321=1233767+988+106=1861124×5+366=986230-160=70164+425=589584-407-100=77156+316×2=788342+161×2=664762×3-586=1700469-190×2=89656+(306-125)=837385-255+293=423446+(397-268)=575920-494+320=746262+636+886=178491+60-27=12431×9+383=66286×8+702=1390912-85×6=402697×7=4879458-130×2=198450-41=409656-107×5=12122×4=88799+770=1569591×(332-325)=4137207-32=175229-195=34881-164=717554×(353-349)=2216374-(94+247)=33496+723=1219383-(445-107)=45536×2-318=75477×(732-727)=385289-20×5=189928×6=5568205+318-408=115472-339=133237×2+926=1400492-245=247883-(271+198)=414213+123-209=127386-305+217=298264-(11+31)=222314+214+344=872801-(556-433)=678473-(47-44)=470765-46=719452×2-754=150140+(128-78)=190455-(157+119)=179719+37×2=793105×4+92=512453+19+105=577865+280-686=459270+239=509249+(488-324)=4134/8-3/8=1/8345-278+528=595620+829+641=2090160×2-28=292464-150=314590+437-408=619670-(351+162)=157446-375=71307-109=1985/9+2/9=7/9679×8-536=4896454-437+314=331468-69×4=192782-567-101=114244×3+908=1640154-(546-507)=115247-(156-40)=131258+(929-324)=863626+684+848=2158777+576-830=523405-18×5=31559×4+464=700335-240=95983+55×8=1423967-163-404=400105+(411-363)=153882+(729-45)=1566367-(22+270)=75363×2=726345+187+513=1045150+666+157=973211+163+62=436403-(398-153)=158163×(268-262)=9783/7-1/7=2/72/8+5/8=7/8387-(95+27)=265427-79×4=11123×2=46325-167+86=244432-320=112458-17×9=30593×4-252=120827-(531-103)=399346+(828-620)=554125-(535-469)=59534×7-460=3278924-(139+484)=3011/7+2/7=3/7386-333+419=47237+(827-56)=80857+150=207759-528+863=1094289×3=867485-197=2884/8-2/8=2/864+(713-30)=747194-23×3=12542+234-247=29326-109+174=391109+129+681=919159+161-152=168807+469-451=825379×2=75873+153+668=894114×(349-341)=912412+70=482490-116-136=238356-299-52=5693×7=4851302+(366-271)=397146×(477-474)=43830×6+152=332773+14×2=80156+231+263=550424-230+213=407396-67×5=61436-359+267=344168+(379-88)=459528×(183-176)=369671+291=362739-60-336=343770-55-294=421712+(210-156)=76646×7+656=978404-363=41164×4+367=1023124-82+239=281478-332+740=88621+115=136146+332-365=113825+736+843=2404376+426-416=386332+47×9=755408×3-684=540169+319=488212-81+67=198474+352×2=1178593-(453-237)=377714-(329+133)=252310+117=427628×3-483=1401463-114-328=21554×8-980=3452769+677=1446756-357×2=42486+(467-408)=54564×9=576363-(20+38)=305239×3-708=9940-186+711=1465469-(15+147)=307676-219×3=19483-447+60=96584-(798-635)=421436-17×9=283403+35+57=495482-186×2=1103/4-1/4=2/4890-(248+353)=289333-108-134=91369-47×2=275527×(466-461)=2635386+(451-287)=550209-37-85=87280×3=840887-27-302=558765+879+655=2299283×(378-375)=84997+172+96=365264-28×7=6839×7=273178+119×2=416865-(160+585)=120188×4-501=251692×(399-391)=5536514×5=2570590-169+122=543183+441=624396+103=499468-(254+122)=92650+535-141=1044370-(27+13)=330229+(482-451)=260125×3=375425-(144-34)=315330-30+126=426637-389-141=107141×4=564682-322=360175+(421-316)=280672-248=424732+(884-785)=831838-166-543=12978+52=130274-(368-243)=149233+351+377=961459-(987-565)=37178-26=152701+903+132=1736692-548+134=278544×4=2176451-85-80=286390-(483-148)=5553×4=21252×8-319=97168+272=440981-(931-664)=714163×9-903=564949-86×6=433109×(385-382)=327841-581+35=295184+304-173=315875-148-119=608250+311×2=872113+208+566=887271-(117-14)=168892+711-706=897472-136×3=64282-40×2=202151+354×2=859829-316=513353-86+30=297598×(736-728)=4784459+(155-94)=520289-134-22=133797+(520-301)=1016180×5-679=221315-(92+81)=142603-(260+37)=306274+95+379=74836×(82-73)=324461+(390-261)=590368+154=522433-149-213=71443-33+664=1074172×4-632=56420×5=2100263+234=49775×3+449=674465-214×2=37145-133+561=573460-114-27=319578+227-194=611993-35×2=923825-473=35230×(391-386)=150312-(291+11)=10471-33×2=40557×2=114161+143=304241+676+57=974461×3=1383288+(489-423)=354266-38-202=26875-(619-454)=710395-(340-10)=651/6+2/6=3/63/6-2/6=1/6305-265+52=92650×(664-661)=1950412-(242-54)=2244/8+2/8=6/8946+393+785=212444×(170-166)=176484-(238-163)=4091/3+2/3=1436-(482-154)=108460+38×7=726780×(355-349)=4680783-337-99=347828+723+183=173486+55+668=809419-(455-301)=265486-(471-93)=10830×4=120303×2-455=151390-103×3=81206-81×2=44341-314=27201×2+636=103891×8=728884+225-908=20135+64×9=611118+464=582723-(24+512)=187340×2-262=418494-160=334791-167-587=37391-131+132=392641+640+300=1581575×5-391=2484281-78×3=47959-(414-221)=766362-(943-733)=15216×9+142=28655+366-294=12717×9=15319×4=7618×(377-371)=108854-(265+529)=60996-367+539=116875×9=675131+203=334342×2=684343×8-787=1957235+141=376265×2-226=304729+103-176=656746-(29+177)=540802+208-912=9842+124-56=110978-(100+744)=13486+391=477482+(180-16)=646410-(303+92)=15458-37×3=347458-136+752=1074904-579=325531-202-265=64848-264-244=340354-75×4=54161×4=644207-65×2=77256-150-18=883/6+2/6=5/6452+926=1378130+64×8=642470+26-482=14153-90-63=0856-(217+639)=0704+192=896836-(258+537)=41754-31×2=692619+(604-34)=118913+440×2=893190×(690-684)=1140859×8-223=6649511+33×8=775409×(622-619)=1227948×6=5688311-39×7=38942-(204+377)=36167+307=374951-645=306315×3=945172-(291-265)=146109+350=459971-128×7=75738-360=378257+158=415267+(456-407)=316117×(177-173)=468406-(484-468)=390335-203=13215×4=60988+(557-155)=1390580+(647-325)=9023/8-2/8=1/858×7-82=324199+45+93=337195×5+313=1288219-(78+11)=130355×2+188=89865×(971-967)=260491+(676-574)=593735-322×2=91976-299×2=378782×4-592=2536928-(253+456)=219389-(92+181)=116329-209-115=5824-185×3=269893-478-286=129429-(56+286)=87447-139-241=67303-(88+109)=106461-119=342423+46×9=837196+713=9096/7-1/7=5/7353-145+21=22921×4=84636-(478+82)=76954-754=200232×4-862=66264×3-600=192385-293-43=49203+934+128=1265943-35-230=678169-39=130941+699+651=2291479-(72+113)=294357-148-195=14616+361=977750-(866-293)=177139+84=223321-262=59409-345+94=158579-318+473=734393-32×8=137776×6=4656235×6-271=1139687-133+310=864337+(357-287)=407132-39=93323-(141+113)=6991+398-318=171414-98-227=89805-16=789302×8=2416827+35-452=41059+805+10=874363-(282+38)=43997-(183+666)=14872-31+289=330115×6-436=254879-528+691=1042320×3-662=298100+352=452989-861=128675-(208-17)=48446+353-320=79870-162×5=60151×2-139=163456-(470-290)=276427+(762-135)=1054909-332-349=228598-52×2=494338-297+192=233287×2+274=848822-651+323=494276+759-129=906182+476+181=839191×(247-244)=573652-(921-271)=2170×(351-347)=680154×(268-265)=462511+(931-356)=1086500-84-117=299167×(634-625)=1503500-(170+67)=263407+420×2=1247381-63=318101-75+148=174226×4+779=1683876-27-93=756549+127×6=1311823+(624-107)=1340250+54×5=520385×2-727=43540+18+494=1052497-450=47103+256=359204+969-136=1037195-48=147214×7=14983/8+4/8=7/8214+501+60=775704+832-602=934227+(290-157)=36043+204×2=451426-182-197=47129×(77-71)=774587+435-565=457281-44×6=17383×2=766293+104=397272×3-741=75372-15×2=342104+(353-158)=2995/8-3/8=2/8208+(105-58)=255439-(341+66)=3284+363=447125×(404-397)=875119+260-237=14236×(233-224)=324423+236=659571×(116-110)=3426497+(543-64)=97691×8-471=257473-276-140=57386+256+76=718121-(74-17)=64177+492=669224+96-251=69537+125×6=1287495-413+209=291441+317+147=90524×(50-41)=216241+237-160=318833-488+384=729491×(511-503)=3928233×5=1165668-456+898=11103/7+4/7=1486+(494-305)=675554+63×5=869249+(782-638)=393168+29×7=371861-(825-576)=612463-201-113=149139-(180-123)=8242×(242-239)=12699×7+164=857151×4+266=8701/8+4/8=5/8695-(937-485)=243239-(250-193)=182720-(38+389)=293108×3=324854-127×4=346415-118-33=264133+220=353484-271=213487-51=436202+635-39=798448-51+581=978942-(178+383)=381309-22×5=199218×(188-185)=654539+808-294=1053837×(736-730)=5022164+299-257=206629×