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1、-三年级数学口算题600道47873-第 6 页40-2=70+90=70+2=140-7=70+50=421752+35=7208=97999799=804=26+9=4528160-60= 1608=150+40=21003=5080=287=5004=248=1220=355=505380042073220480458334202093388041200200117804682945+45=5090=429855+52=90+30= 90+40= 170-90= 110-30= 50+80=110-80= 50+90=400+300=213066066510540622408080104
2、730700936006103666034338720836562330107390508008600020001204640252942505=639=2804=5050=8109=3006=25+41= 1407=2031=90-65= 52447454417540701316900357291252496=909=16002=71-68=6001=15003=9300=320062026602640888047500500091124331582612040973609442960332224404602705003332804940033306903114090056749200480
3、0010002024572954061073105804934208090307012046408720910346510660370054120700039903030104730236606590050001140704010366000200080802914805020043656881060062230400600342980082130720833303220871050040224044043320320483977290936402305075186007002107=38=802=4010=1803=80992804=90100=818=20+90= 80+20= 130-2
4、=31033903230311482553103720947007006003482864184808750880887989500801754284231700800903180330059303800460159003450936063756323707120071529965070375314172784042141402660678007700840243025409313133345696323305061594620268009603150090318078006332657800833576003378480863036233500500332800270080475607440
5、493324205423312307804810404040108935627241230(3-1)242-3054(23-3)31330781531060702330605070801068405030217115070242307010745010701130402420122030212070281201313610191150303028102050103630332140121031214206902033902020133120223609039102124420124223022430803310509012402203224090402003412021301046370033
6、302041660024205030045507080077239108969101330233049060606040903021403020409023133204070481970649002310203545353220706084190063420333031207026841098007030242864759022306500870422040030059001033220807020140206602240442041394320463742063006401136091034409090604907203430038046503303250568080214080401037
7、20502000300880270204004=066503064088804400300343936069910122030804120971070073330059118020043120600904700700443740128447630771230433130213043202075182348903030124624073422010051050350552292402523940084808333050580036050410241203103202344043032035103529614107303050908030201490504206300624046910224033
8、2090097011450050020404004493370772337836114230346910-5=90+20=17-8=180-80=3505=407043389050846543161080518250040881070058199407044043234845409909133600712034802393560899034202633160480070069035802440482480260524484040510857075900844930383572968684980733033234242665466+26= 1316839150-60= 700+600= 1502455270+80= 110-6= 6595738150070042299377076603960318096515660680021402=4008=4806=305=04 =2406=1602=903=751=3208=4004=2404=54009=