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

三年級數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦535+932-943=946-(788-753)=318×3=55+326+435=419-224-164=854-217×3=246-215=191+(435-312)=615+437=742-583-30=370-(17+156)=677-336+853=328+63=405-(378+18)=494×2=850-(736+80)=36×7-112=200+856-207=635-28+220=477-226-93=347-84×4=956-(449+451)=325+83×7=494+86=58+317=359+338+236=25×6+196=679+511-964=965+599-625=190×6-203=16+431-234=472-(244+137)=247-191+155=430-98-149=251+(320-191)=78×(140-131)=450×(386-377)=2/3-1/3=70+(386-285)=343×2=497×7-544=87+628+154=377-48=174×(310-305)=126×8-123=991+652=208-147=894×6-250=655+211+130=789×(942-934)=73×(363-357)=129-68+13=190×5=155-89-36=736-67=390+94=94×7-436=911-105×5=128×6-705=484+884-469=330-274=531+103×3=570-432-70=156×5-573=483×2+438=605-76-294=263×3=434+(960-755)=296+110-180=80-(210-194)=12×(435-430)=298-137+159=284-181+38=55×7=377×4=183+110-155=721-(552+75)=676-94×2=163-117-39=495+157×5=647×(326-321)=278-150=226+(477-334)=302-(26+31)=134+(779-415)=978-647=435+(476-384)=948-(773+154)=408-107×2=158-(41-10)=816-10×8=39+(956-330)=906-559-299=456-129=639-307×2=635×(706-699)=866-(788-376)=426-(61+224)=61+103=195×2=666-61×4=49+334-187=121×4-467=51+57=99+(489-258)=279+102=221+276=686-39×6=236×5-517=191×2=915×(940-933)=171+46-212=633-(30+439)=51×(35-27)=413-(370-176)=204×2-348=267-(113+122)=521+550-406=82×(51-48)=874-350-116=13×(557-551)=248-64-74=348×6-653=3/9-1/9=288+241-69=130+191×2=291-278+898=298×3-454=338-71-31=111+349=98+258=952-(536+178)=737×(345-342)=5/8+2/8=401-210-124=926×9=492-(105+66)=336-53+79=389-91×4=468-(441-90)=328×4-91=985+(754-424)=234+(354-286)=168-167+61=484+(817-364)=192-69-42=460-(226+52)=454-308+352=481-(98+22)=241-115+140=149+186=500-135×3=912-(545+105)=598×9-872=524+931+703=119×3-336=718×6=255+78=118×2+635=269+(769-511)=280-(110+61)=157×6-614=482-(301-56)=26+281-147=825×6-108=173+17+289=356-35=800+996-979=410-56=50×6+116=531-422+28=122+165×4=195+(314-10)=6/8-1/8=874-260-292=179×2=316-(369-237)=479×7=76×6+73=185×(500-496)=951-291-554=737×2-915=267+243=682+172+78=422+(312-248)=228-41+368=381-(385-231)=205×3=489-468+491=759-396=422-32=319+458+81=443-(498-382)=299-263+56=971-(104+771)=308+574=211-(215-118)=35×7+101=400×(416-410)=115×5-104=218×4-379=395-252=781-(512-354)=998-811+783=731+799+658=206×2-17=986+757-613=62+351=221-107=133-80+97=66×4+68=764+308-278=557×4=348×6=161×5+13=553+(693-653)=873-455=561-542=983-40-123=205-(58+66)=355-185=198+202=403-114=377-204=376+100-243=974+(600-388)=924+441+55=311-(126-36)=57×(72-66)=397-111=977-76×2=947+353×2=922-164×4=15×2=216-(126+87)=600×(801-792)=812-120-229=257-42×2=202×(22-18)=236+133-337=315×3-120=56+(332-154)=743×(88-79)=203+397×2=689+445=522+60×6=348-(124+78)=821-65-176=845+(792-157)=788-(157+32)=133×7=687+17+285=131×8=160×5=324+(264-15)=483+333+314=215+539+91=321+174-142=491-206=205+155+394=489×5-152=76×(205-201)=924+428-673=97+597+87=225-(431-307)=182+155×2=670+360+949=665-53×5=388-32×8=898+875-277=378×2-488=145+337-203=14×4+895=936-679-110=371-(448-177)=152×3=302+(474-107)=121+325-404=644-14-266=913-(161+559)=421×4-68=350-259=753-(250-134)=988+21×8=134+(483-206)=199×(48-45)=45+269=298+641=734+34+915=798+519+956=173×4-418=727-224+840=5/7-2/7=194×3+460=940-221-28=415×2=641+103×7=5/8-1/8=90×9=17×7+308=89-(311-276)=933-686-218=153-39=459-(33+414)=124-(25+62)=298×2-197=165+234×2=458+329=113+(443-194)=334+330×2=870-(280+196)=371-239-114=97×(448-442)=2/4-1/4=277-119=1/5+2/5=567-478+992=128×5-429=339+76=144×6-17=481-(67+231)=478-(97+33)=349-34×9=410-121=647-388=767+(455-56)=15×(350-345)=404-331+118=95+465+405=495-74-346=105×5-257=194-31+76=176+422-89=279-17×5=126+181+22=282×9=533-297+903=424-257=420-(431-384)=346×7-736=535-93×3=539-66-105=618-(939-737)=330+(808-533)=418×2=5/6-1/6=298+164=191×(26-22)=653-579+805=78×6=331-220+349=844-74×8=417-15×8=502×5=246×(164-160)=247+(451-386)=396-227+969=370-210+270=476-67×2=457×2-543=646×5=480-365-38=90-54=471-(427-401)=944+611+698=941-911+416=487-308=149×5=645-287+965=942-38×2=705-(474-404)=761+815-178=419-109=791-89×2=4/8-1/8=175-89-30=143+(822-368)=442-386=842+298=184×3=26+23×9=79×(456-453)=241×3-267=836-(394-115)=835×6-302=474-177-165=553×4-553=734-(84+601)=905×5-579=570×2=228-(476-311)=674+300-340=659-10+155=304×5=74+748+96=97×6-177=70+123×7=62+39-23=459×(738-732)=93×(20-11)=114×3+61=384-36-120=307+(443-301)=938-250=18×3+224=124×(417-411)=258-227=454×2-683=305-(447-216)=81×9-19=435-382+718=341×8=220+280-324=134+(128-86)=410+87×3=100×9-168=320-39-171=747-(277+234)=446-(433-10)=141+563=826+864=347×2=723-11×2=625+336+516=129+271=968-251+659=157+865-893=177×4=467+(359-307)=785-(646-278)=343-242+65=625-(374-167)=54+168-206=957-138-242=102×3-274=362-(134+57)=463+34×6=202-55+91=432+273×2=671×(412-407)=854+(597-571)=101×(187-178)=14×4=155+243=195+(564-108)=361+115=304-170+97=119-88=254-163+115=257×2=654-(816-797)=697-(549-494)=344-128-194=633-572-43=46×(67-63)=884-(335+12)=151+215=249-(130-76)=992+211=184×(222-218)=104-(437-399)=245+78+391=463+(333-203)=168+609+156=972+477+837=842-720-14=417-(188+97)=2/7+3/7=278×4-361=335×(687-679)=422+73=337-49×4=895-(705-386)=995-971+840=348+390=985-(315+602)=871-39×8=271+248+227=97+103=294-253=356-20×3=229+468+930=4/10+3/10=368+90=344-(484-224)=383×(659-651)=668-(262+168)=100+576=790×(38-35)=611-(733-243)=391-(159-47)=140+(987-350)=996-175-185=273+27+488=426+369=268×3=188+181=543+885=680-359=738+415+139=965-36-48=689-(187+184)=343×8-334=536+163+138=678+(860-176)=384-28×9=399+15×8=965-238×2=10×4+289=658-(601-201)=653×3=439-11×8=269-64=920-(684+24)=130-(100-89)=959+307=395-33×6=111+75=858×9-328=845×8-748=457-279=319-(73+80)=281×(457-454)=358-(261-91)=68-12×4=551+448+656=319+105×9=236+543-497=904+80+129=312+258+328=859+(323-172)=217+(427-260)=101×2+65=5/8+3/8=235+(440-97)=818-296-409=19×(448-445)=452+(432-415)=464-(288-222)=34×(289-285)=311×2-203=245-223+328=489-435+254=8/10+2/10=243-108×2=520+855-755=599×9=228+806+209=345×6-968=42×5+389=917-438-34=88×(342-336)=920-(349+185)=81×(283-279)=105+(294-142)=536-270=188×3+321=741+(396-295)=888-220=195+196-227=487-105-78=50+152-65=393+946-636=990+10+971=221-(298-147)=360×2-103=979+994-12=131×3+781=440-203-26=140×(18-14)=452-(409+33)=490+387=382+(262-57)=114+314-13=448×9=313+41×5=984-(867-825)=126+(954-114)=364-(77+115)=675+239+271=333+54+72=495-242=596+(839-660)=378×2+348=419-(438-279)=881-298+821=5/9+4/9=459-(212+21)=83+687+89=596+566+209=352-298=14+180+250=871×(946-938)=697+564-112=469-18×6=583-446-96=151×3+297=949-(315-217)=5/9+2/9=772-26×8=232-100=791-(13+436)=441-39-384=200+154-52=45×7-94=350-77+105=289×7-774=616×9=327×2=170×4-422=538+779+904=470-32=4/8-3/8=240-38-170=103×8-766=479×2+469=290-196+140=497-(435-191)=473-136-128=293-276=373-74-79=296-(198-152)=166+(374-28)=138+71+461=478+35+469=130+171+379=616+155×6=416+105×3=229×9-987=514×5=249+(432-331)=557+65×9=60+92-113=466-(411-242)=641-58×3=57+370+146=137×5=245×3+225=180-132+456=820-52×6=896-(635-413)=957+886-110=322-72-222=249+149=482-161×2=449-202+102=78+397=533-(973-881)=428-57×2=136×7=529×6-371=641×3-612=364-(443-378)=35+128+539=113×(342-336)=165×(69-66)=483-(407+65)=229-(120+75)=153×(561-558)=280-12×9=940-658+184=459×7-906=255+(473-374)=145+62-25=2/6+3/6=634×6=442+52-34=4/6-1/6=369+56-408=801-115-114=795-48-418=84×(30-22)=448-(169+48)=327-270+364=728-68×7=151×3=155×(55-51)=213-(39+11)=239-189+411=517-329=22+(637-148)=47+44-46=996+27-131=493-208-263=159+287×2=351+819+88=709+390=160+95=50+146=784-253×3=272-144=884+243-100=706-308-185=799-72=426-(773-549)=235-97=766+225-299=857+17+117=338-113×2=421-240+231=230+(467-27)=97×6=172-82×2=245-225=396+79=830+506=290-13×4=450×7=126+285=728-177×4=970-(401+491)=349+(447-32)=68×9+663=859-712+447=966+205+809=330+889+301=261-259+324=330-307+62=334-139+856=2/5-1/5=189+401×2=327-196+164=164+179=124×5-363=473+(941-782)=419-36-271=343+(360-209)=145×9=256+234-260=388+752=459-(31+285)=651×(891-883)=737-(969-604)=852-806+243=380+165=214-(164-81)=774×(457-451)=15×(237-229)=188×(399-395)=369-110=271-78+222=466+(144-142)=213+82-267=924+(927-209)=821+791+754=865-443-340=239+165-121=177+355+50=860-80×7=833-(540-176)=840×(363-354)=820×(643-635)=679-(176+482)=80-(42+38)=481-(156+127)=448×(995-991)=677-352+696=295×3=669-(332+142)=372×2=1/6+2/6=312-20×7=157+67=137×(748-742)=85×8-322=949×8=66×4+253=657+734-326=825-221×3=953-(559-447)=198-123+68=408-37×6=279-24×9=398-283-86=192-(174-35)=990-583=108-81=248+(390-164)=107×9=826+540+776=80+131×3=306-(491-265)=458+482+336=137+264-32=444+295=975-775-89=435-293+127=444-114×2=606×(238-233)=344×2+640=53+(482-345)=476+913-488=432+221+22=687+(729-430)=289-(229-87)=437+628-840=808-(427+149)=461-199-18=160-27×4=143×4+164=760-(205+396)=617+357-618=377-280=996-832+763=487-(767-322)=550×5-221=67-12×4=387-(28+61)=148×3=112+394+857=178+917-301=282-260-18=310-33-185=106×8=345+19×3=344-99=20×2+121=247+81-184=232-39×4=514×4=367+(770-204)=67+435+223=459-357+311=772×5=147×(552-545)=408-38-228=77×7+203=292-(23+210)=286+(396-390)=421-102-292=366+199×3=100-83=159+187=74+89-108=1/7+3/7=836-51+287=121×4+192=520-(320+116)=480+266=747-93×6=133+221-269=2/8-1/8=476-57×3=985-(538+88)=396-381=460-(28+293)=835+250=159×(161-153)=52×5+418=244-136=217+538+847=265-213=681-(690-411)=355-(173-20)=987-172=97+375=69×(187-178)=491-16×2=595+86×7=417+41+387=1/4+2/4=283+(323-232)=464×4=192-33×4=參考答案535+932-943=524946-(788-753)=911318×3=95455+326+435=816419-224-164=31854-217×3=203246-215=31191+(435-312)=314615+437=1052742-583-30=129370-(17+156)=197677-336+853=1194328+63=391405-(378+18)=9494×2=988850-(736+80)=3436×7-112=140200+856-207=849635-28+220=827477-226-93=158347-84×4=11956-(449+451)=56325+83×7=906494+86=58058+317=375359+338+236=93325×6+196=346679+511-964=226965+599-625=939190×6-203=93716+431-234=213472-(244+137)=91247-191+155=211430-98-149=183251+(320-191)=38078×(140-131)=702450×(386-377)=40502/3-1/3=1/370+(386-285)=171343×2=686497×7-544=293587+628+154=869377-48=329174×(310-305)=870126×8-123=885991+652=1643208-147=61894×6-250=5114655+211+130=996789×(942-934)=631273×(363-357)=438129-68+13=74190×5=950155-89-36=30736-67=669390+94=48494×7-436=222911-105×5=386128×6-705=63484+884-469=899330-274=56531+103×3=840570-432-70=68156×5-573=207483×2+438=1404605-76-294=235263×3=789434+(960-755)=639296+110-180=22680-(210-194)=6412×(435-430)=60298-137+159=320284-181+38=14155×7=385377×4=1508183+110-155=138721-(552+75)=94676-94×2=488163-117-39=7495+157×5=1280647×(326-321)=3235278-150=128226+(477-334)=369302-(26+31)=245134+(779-415)=498978-647=331435+(476-384)=527948-(773+154)=21408-107×2=194158-(41-10)=127816-10×8=73639+(956-330)=665906-559-299=48456-129=327639-307×2=25635×(706-699)=4445866-(788-376)=454426-(61+224)=14161+103=164195×2=390666-61×4=42249+334-187=196121×4-467=1751+57=10899+(489-258)=330279+102=381221+276=497686-39×6=452236×5-517=663191×2=382915×(940-933)=6405171+46-212=5633-(30+439)=16451×(35-27)=408413-(370-176)=219204×2-348=60267-(113+122)=32521+550-406=66582×(51-48)=246874-350-116=40813×(557-551)=78248-64-74=110348×6-653=14353/9-1/9=2/9288+241-69=460130+191×2=512291-278+898=911298×3-454=440338-71-31=236111+349=46098+258=356952-(536+178)=238737×(345-342)=22115/8+2/8=7/8401-210-124=67926×9=8334492-(105+66)=321336-53+79=362389-91×4=25468-(441-90)=117328×4-91=1221985+(754-424)=1315234+(354-286)=302168-167+61=62484+(817-364)=937192-69-42=81460-(226+52)=182454-308+352=498481-(98+22)=361241-115+140=266149+186=335500-135×3=95912-(545+105)=262598×9-872=4510524+931+703=2158119×3-336=21718×6=4308255+78=333118×2+635=871269+(769-511)=527280-(110+61)=109157×6-614=328482-(301-56)=23726+281-147=160825×6-108=4842173+17+289=479356-35=321800+996-979=817410-56=35450×6+116=416531-422+28=137122+165×4=782195+(314-10)=4996/8-1/8=5/8874-260-292=322179×2=358316-(369-237)=184479×7=335376×6+73=529185×(500-496)=740951-291-554=106737×2-915=559267+243=510682+172+78=932422+(312-248)=486228-41+368=555381-(385-231)=227205×3=615489-468+491=512759-396=363422-32=390319+458+81=858443-(498-382)=327299-263+56=92971-(104+771)=96308+574=882211-(215-118)=11435×7+101=346400×(416-410)=2400115×5-104=471218×4-379=493395-252=143781-(512-354)=623998-811+783=970731+799+658=2188206×2-17=395986+757-613=113062+351=413221-107=114133-80+97=15066×4+68=332764+308-278=794557×4=2228348×6=2088161×5+13=818553+(693-653)=593873-455=418561-542=19983-40-123=820205-(58+66)=81355-185=170198+202=400403-114=289377-204=173376+100-243=233974+(600-388)=1186924+441+55=1420311-(126-36)=22157×(72-66)=342397-111=286977-76×2=825947+353×2=1653922-164×4=26615×2=30216-(126+87)=3600×(801-792)=5400812-120-229=463257-42×2=173202×(22-18)=808236+133-337=32315×3-120=82556+(332-154)=234743×(88-79)=6687203+397×2=997689+445=1134522+60×6=882348-(124+78)=146821-65-176=580845+(792-157)=1480788-(157+32)=599133×7=931687+17+285=989131×8=1048160×5=800324+(264-15)=573483+333+314=1130215+539+91=845321+174-142=353491-206=285205+155+394=754489×5-152=229376×(205-201)=304924+428-673=67997+597+87=781225-(431-307)=101182+155×2=492670+360+949=1979665-53×5=400388-32×8=132898+875-277=1496378×2-488=268145+337-203=27914×4+895=951936-679-110=147371-(448-177)=100152×3=456302+(474-107)=669121+325-404=42644-14-266=364913-(161+559)=193421×4-68=1616350-259=91753-(250-134)=637988+21×8=1156134+(483-206)=411199×(48-45)=59745+269=314298+641=939734+34+915=1683798+519+956=2273173×4-418=274727-224+840=13435/7-2/7=3/7194×3+460=1042940-221-28=691415×2=830641+103×7=13625/8-1/8=4/890×9=81017×7+308=42789-(311-276)=54933-686-218=29153-39=114459-(33+414)=12124-(25+62)=37298×2-197=399165+234×2=633458+329=787113+(443-194)=362334+330×2=994870-(280+196)=394371-239-114=1897×(448-442)=5822/4-1/4=1/4277-119=1581/5+2/5=3/5567-478+992=1081128×5-429=211339+76=415144×6-17=847481-(67+231)=183478-(97+33)=348349-34×9=43410-121=289647-388=259767+(455-56)=116615×(350-345)=75404-331+118=19195+465+405=965495-74-346=75105×5-257=268194-31+76=239176+422-89=509279-17×5=194126+181+22=329282×9=2538533-297+903=1139424-257=167420-(431-384)=373346×7-736=1686535-93×3=256539-66-105=368618-(939-737)=416330+(808-533)=605418×2=8365/6-1/6=4/6298+164=462191×(26-22)=764653-579+805=87978×6=468331-220+349=460844-74×8=252417-15×8=297502×5=2510246×(164-160)=984247+(451-386)=312396-227+969=1138370-210+270=430476-67×2=342457×2-543=371646×5=3230480-365-38=7790-54=36471-(427-401)=445944+611+698=2253941-911+416=446487-308=179149×5=745645-287+965=1323942-38×2=866705-(474-404)=635761+815-178=1398419-109=310791-89×2=6134/8-1/8=3/8175-89-30=56143+(822-368)=597442-386=56842+298=1140184×3=55226+23×9=23379×(456-453)=237241×3-267=456836-(394-115)=557835×6-302=4708474-177-165=132553×4-553=1659734-(84+601)=49905×5-579=3946570×2=1140228-(476-311)=63674+300-340=634659-10+155=804304×5=152074+748+96=91897×6-177=40570+123×7=93162+39-23=78459×(738-732)=275493×(20-11)=837114×3+61=403384-36-120=228307+(443-301)=449938-250=68818×3+224=278124×(417-411)=744258-227=31454×2-683=225305-(447-216)=7481×9-19=710435-382+718=771341×8=2728220+280-324=176134+(128-86)=176410+87×3=671100×9-168=732320-39-171=110747-(277+234)=236446-(433-10)=23141+563=704826+864=1690347×2=694723-11×2=701625+336+516=1477129+271=400968-251+659=1376157+865-893=129177×4=708467+(359-307)=519785-(646-278)=417343-242+65=166625-(374-167)=41854+168-206=16957-138-242=577102×3-274=32362-(134+57)=171463+34×6=667202-55+91=238432+273×2=978671×(412-407)=3355854+(597-571)=880101×(187-178)=90914×4=56155+243=398195+(564-108)=651361+115=476304-170+97=231119-88=31254-163+115=206257×2=514654-(816-797)=635697-(549-494)=642344-128-194=22633-572-43=1846×(67-63)=184884-(335+12)=537151+215=366249-(130-76)=195992+211=1203184×(222-218)=736104-(437-399)=66245+78+391=714463+(333-203)=593168+609+156=933972+477+837=2286842-720-14=108417-(188+97)=1322/7+3/7=5/7278×4-361=751335×(687-679)=2680422+73=495337-49×4=141895-(705-386)=576995-971+840=864348+390=738985-(315+602)=68871-39×8=559271+248+227=74697+103=200294-253=41356-20×3=296229+468+930=16274/10+3/10=7/10368+90=458344-(484-224)=84383×(659-651)=3064668-(262+168)=238100+576=676790×(38-35)=2370611-(733-243)=121391-(159-47)=279140+(987-350)=777996-175-185=636273+27+488=788426+369=795268×3=804188+181=369543+885=1428680-359=321738+415+139=1292965-36-48=881689-(187+184)=318343×8-334=2410536+163+138=837678+(860-176)=1362384-28×9=132399+15×8=519965-238×2=48910×4+289=329658-(601-201)=258653×3=1959439-11×8=351269-64=205920-(684+24)=212130-(100-89)=119959+307=1266395-33×6=197111+75=186858×9-328=7394845×8-748=6012457-279=178319-(73+80)=166281×(457-454)=843358-(261-91)=18868-12×4=20551+448+656=1655319+105×9=1264236+543-497=282904+80+129=1113312+258+328=898859+(323-172)=1010217+(427-260)=384101×2+65=2675/8+3/8=1235+(440-97)=578818-296-409=11319×(448-445)=57452+(432-415)=469464-(288-222)=39834×(289-285)=136311×2-203=419245-223+328=350489-435+254=3088/10+2/10=1243-108×2=27520+855-755=620599×9=5391228+806+209=1243345×6-968=110242×5+389=599917-438-34=44588×(342-336)=528920-(349+185)=38681×(283-279)=324105+(294-142)=257536-270=266188×3+321=885741+(396-295)=842888-220=668195+196-227=164487-105-78=30450+152-65=137393+946-636=703990+10+971=1971221-(298-147)=70360×2-103=617979+994-12=1961131×3+781=1174440-203-26=211140×(18-14)=560452-(409+33)=10490+387=877382+(262-57)=587114+314-13=415448×9=4032313+41×5=518984-(867-825)=942126+(954-114)=966364-(77+115)=172675+239+271=1185333+54+72=459495-242=253596+(839-660)=775378×2+348=1104419-(438-279)=260881-298+821=14045/9+4/9=1459-(212+21)=22683+687+89=859596+566+209=1371352-298=5414+180+250=444871×(946-938)=6968697+564-112=1149469-18×6=361583-446-96=41151×3+297=750949-(315-217)=8515/9+2/9=7/9772-26×8=564232-100=132791-(13+436)=342441-39-384=18200+154-52=30245×7-94=221350-77+105=378289×7-774=1249616×9=5544327×2=654170×4-422=258538+779+904=2221470-32=4384/8-3/8=1/8240-38-170=32103×8-766=58479×2+469=1427290-196+140=234497-(435-191)=253473-136-128=209293-276=17373-74-79=220296-(198-152)=250166+(374-28)=512138+71+461=670478+35+469=982130+171+379=680616+155×6=1546416+105×3=731229×9-987=1074514×5=2570249+(432-331)=350557+65×9=114260+92-113=39466-(411-242)=297641-58×3=46757+370+146=573137×5=685245×3+225=960180-132+456=504820-52×6=508896-(635-413)=674957+886-110=1733322-72-222=28249+149=398482-161×2=160449-202+102=34978+397=475533-(973-881)=441428-57×2=314136×7=952529×6-371=2803641×3-612=1311364-(443-378)=29935+128+539=702113×(342-336)=678165×(69-66)=495483-(407+65)=11229-(120+75)=34153×(561-558)=459280-12×9=172940-658+184=466459×7-906=2307255+(473-374)=354145+62-25=1822/6+3/6=5/6634×6=3804442+52-34=4604/6-1/6=3/6369+56-408=17801-115-114=572795-48-418=32984×(30-22)=672448-(169+48)=231327-270+364=421728-68×7=252151×3=453155×(55-51)=620213-(39+11)=163239-189+411=461517-329=18822+(637-148)=51147+44-46=45996+27-131=892493-208-263=22159+287×2=733351+819+88=1258709+390=1099160+95=25550+146=196784-253×3=25272-144=128884+243-100=1027706-308-185=213799-72=727426-(773-549)=202235-97=138766+225-299=692857+17+117=991338-113×2=112421-240+231=412230+(467-27)=67097×6=582172-82×2=8245-225=20396+79=475830+506=1336290-13×4=238450×7=3150126+285=411728-177×4=20970-(401+491)=78349+(447-32)=7646