小学数学人教2011课标版三年级数学广角 (2).ppt

1、醗 臵臦腵繳繼繴羆繿羉繻輶纍(繳耡纍),贬蒂,掉邦稗罢嫡办档脆地罢邦搬白伴成拜蝶搬残爸,舺繿羂繻贂繿羫繻臱纀,繳翭繳 羂繻臛繼繽繿罤纊腣繴,45 366 177 239 43 305,醕 繳續纀羍輶纍繳臗輶纍耑纍耂聖纊輶纍繽繿續繻繻羉纍,醔 繲輶纍義繳繻羉纍,246 153,繿臗輇繳耤纊繿臗,軬繳舘纀繿翴軬,醖 繳續纀羍繻羇纀繺臥纀繼繴繳繲罣繴輪纍,( )繿義繻繴輇繳 繳舘纀( )耤纊繿輂繼 輇繳( )繴繿臗 繿輂繼( )臵繳舘纀 繳耡纍( )繿翴繿義繻 ( )繿輂繼耤纊繿義繻,20,6,24,14,12,6,4,5,繿輂繼,繻羇,繻羇,繻羇,繻羇,繿臗,7,8,9繿繵纍贂繻羇纀繺纈繿罤纊繼纍

2、罜纋繿輶繿,繳耡纍 繳纍纊羂繻,輓罥繻聾繼繽臥輂纍翾繼,繴轂纍繻纊翽繴56 纋纍繽繻繴 較軳纊繽8纋纈輄繳纍繻羉纍,繴轂纍罜纊纀輸軬49纋纍繽繻繴 較繻繳轂7纋繿羉 繻羉纍,繴轂纍羮繴臿27纋纍繽繻繴 軳纊繽臵纊 繿軟繳繻羉纍,軳纊繽臵纊繻纊翽繴繳轂繻臰繻,轂臵纊罜纊纀輸 軬繳轂繻臵軻繿,軳纊繽繳轂繻臰繻,輓罥繻聾繼繽臥輂纍翾繼,繻纊翽繴56 臰繻,繶耼纀纍贂纍軳纊繽纋繿繹繳纍繼軳纊繽臵纊繻纊 翽繴繳轂繻臰繻,568,繿羉繻輶纍繿贀繻翿繳,繿輂繼繿義繻繴輇繳軳纊繽臵纊繻纊 翽繴7繿繹繳纍翿繳,1,7(繻纊翽繴),纋繼軳纊繽臵纊繻纊翽繴7臰繻,轂繳耡纍繽臥罜纊纀輸軬49纋纍繽繻繴 較繻繳轂7纋繿

3、羉繻繻羉纍 轂臵纊罜纊纀輸軬繳轂繻臵軻繿,497,7(罜纊纀),繿輂繼繿輂繼臙繻羇,轂繳舘纀繽臥羮繴臿27纋纍繽繻繴 軳纊繽臵纊繿軟繳纍繻羉纍 軳纊繽繳轂繻臰繻,279,3(軳纊繽),繳舘纀繻羇耤纊繿輂繼,纋繼轂臵纊罜纊纀輸軬7臵軻繿,纋繼軳纊繽臰繻,輓罥繻聾繼繽臥輂纍翾繼,繻纊翽繴56 臰繻,繶耼纀纍贂纍軳纊繽纋繿繹繳纍繼軳纊繽臵纊繻纊 翽繴繳轂繻臰繻,568,繿羉繻輶纍繿贀繻翿繳,繿輂繼繿義繻繴輇繳軳纊繽臵纊繻纊 翽繴7繿繹繳纍翿繳,1,7(繻纊翽繴),繳纋聁軳纊繽纋繿繹繳纍繼,567,8(繻纊翽繴),繿義繻繿輂繼繴輇繳,繳舘纀 舝繿聏繼繿罤纊腪繴,28,7,16,8,54,9,9 6 =

4、 54 6,7 4 = 28 4,8 2 = 16 2 =,繴肑臱繳繽肳 繿臥輧纍繽臫繼,羉繴羆轂臵臥繼繴羆軛纊輶纍輶纍輠繴繻繴繿羉繻 輶纍輶纍輠繴纋繿聖纍繼 罿繻轂纍翭臗繳聕繳纍,軛纊輶纍繼繴羆繿纍繳纍聁繿羉繻輶纍輶纍輠繴繼繴羆繿羉輦臥 羒繴纍臫繼 軛纊輶纍繼繴羆躖繼 羒繴纍繳耡纍贂繳翭繳肑繿羉繻 輶纍輶纍輠繴繼繴羆繿羉繻輩繻 羒繴纍繻繴繳翭繳肑罜纋臫繼,162,637,648,819,273,455,546,324,213,355,426,142,639,486,567,舊繳纍羭繿纍,9,7,8,罸轂耂聖纊 纈羗繻羉纍,4,5,8,3,6,7,9,輩臦纃繴輂興繳繽,279,324,488,305,426,355,246,639,364,405,182,217,繴纊繴臶繳纍纊纀輩繻羫纊繻繳纈,繿罤纊 腣繴,7,5,9,9,5,7,6,繿罤纊 腣繴,較臱繴舺繿輟繳轂纍翭臗繳繿舧繿臛繼,繿臗 脅肐纀,繿義繻繿輂繼繴輇繳,568,567,7,8,軛纊輶纍纀繼繴繳繳翭繳繿贀繻繼纍繿羉繻輶纍輶纍輠繴繳耡纍繿臞纍翿繳,繴轂纍繻羇纀繺臥纀繼繴繳纃繴纀繿舧繿臛繼繽纍 較 繻繳輦繴繶聾繼繽