2016級(jí)數(shù)學(xué)思考題

六年級(jí)E上val冊(cè)u(píng)at數(shù)ion學(xué)on練ly.習(xí)題ed

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Ltd.1.張家四兄弟進(jìn)城，老大帶去的錢是另外三個(gè)所帶錢的50%，老二帶去的錢Ev是al另uat外io三n

o人nly所.帶錢的ed

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Profile1/C3o，py老rig三ht帶20去04-的20錢11

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個(gè)Ltd所.帶錢的25%，老四帶去1040元。問：四個(gè)進(jìn)城一共帶了多少錢？老大帶去的錢是另外三個(gè)所帶錢的50%，由此知老大帶錢為總數(shù)的50%÷（1+50%）=1/3老二帶去的錢是另外三人所帶錢的1/3,由此知老二帶錢為總Ev數(shù)al的ua1t/i3o÷n（on1+l+1y/.3)=1/4ed老wi三th帶A去sp的o錢se是.S另li外de三s個(gè)fo所r帶.N錢E的T的32.5%5%Client

Profile由此知老Co三p帶yr錢ig為ht總2數(shù)00的4-2250%1÷1（As1p+o2s5%e）Pt=1y1/L5td.所以老四帶錢占總數(shù)為1-1/3-1/4-1/5根據(jù)對(duì)應(yīng)關(guān)系可以知道四個(gè)進(jìn)城一共帶了

1040÷（1-1/3-1/4-1/5）=4800元2.青年旅行社在元旦期間推出優(yōu)惠活動(dòng)，原價(jià)2800元的“黃山游”現(xiàn)在打八五折，比原價(jià)便宜了多少錢？3.調(diào)制蜂蜜水，用蜂蜜和水按1：9調(diào)制而成，如果調(diào)制500毫升蜂蜜水，需要蜂蜜和水各多少毫升？Evaluation

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w4i.t張h叔A叔sp把o2s0e00.元Sl的i稿de費(fèi)s存f入or銀行.N，E存T

期3.為52C年l，ie年n利t率Pr為ofile2.70%，C到o期py支r取ig時(shí)h，t

張20叔0叔4-要2繳01納1稅A后sp多o少se元P的t利y息Lt稅d？.最后張叔叔能拿到多少錢？5.一種自行車輪胎的外直徑是70cm，李老師騎自行車從家到圖書館用了10分鐘，如果車輪每分鐘轉(zhuǎn)200周，李老師從家到圖書館的路程是多少m？五、計(jì)算下面圖形的面積。（單位：厘米）Evaluation

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Ltd.5.長(zhǎng)方形的寬是多少厘米？Evaluation

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Ltd.6、一塊草地的形狀如下圖的陰影部分，它的周長(zhǎng)和面積各是多少？Evaluation

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Ltd.Evaluation

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Ltd.Evaluation

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Ltd.Evaluation

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Ltd.Evaluation

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