ǰλãҳ > 2018年最新版新课标人教版小学六年级下册数学毕业总复习知识点汇?- 百度文库
1=100ꣻ 1=365죨 ƽ 1=366죨 һ塢ߡˡʮʮǴ£31 졣 ġšʮһСС£С30졣 ƽ228죻 229졣
1= 24Сʱ 1Сʱ=60֣ 1=60룻
һõλ Ԫ ǡ
λ㣺 1Ԫ=10ǣ 1=10 ߡͬһλ֮Ļ
1ĺ渽мλ磺3ף50ǧˣ2.5Сʱȶ
1ֻһλ磺8.7֣17.3ȶǵ
2ͬλ
1Ԫ5ǣ6ƽ8ƽף9Сʱ3039ȶǸ
2ת
(1)λͼλķλ
磺 3=3000ף ǣ31000=3000 2.5=(2500)ף :2.51000=2500 2ͼλλķͼλ½
: 4000=( 4 ) ף :40001000=4
1500=( 1.5 )ף :15001000=1.5
֪ʶ һĸʾ
1ĸʾ
ĸʾϵıͬʱҲԱʾĽ 2ĸʾϵ㶨ɺʡļ㹫ʽ 磺ĸʾϵ
·sʾٶvñʾʱtʾ֮Ĺϵ s=vt v=s/t t=s/v
ܼaʾbʾcʾ֮Ĺϵ: a=bc b=a/c c=a/b 3ĸʾд
1ֺĸĸĸʱ˺ſԼ.ʡԲд
Ҫдĸǰ档
21κĸʱ1ʡԲд
1̣δ֪ĵʽ̡
1ǵʽֺδ֪ȱһɡ
8 / 15
2ǵʽʽһǷ
2̵Ľ⣺ʹȵδ̵ֵ֪Ľ⡣ ̵̣ⷽĽĹ̡̽ⷽ ġȺͱ
1ȵ
1ȵ壺 ֽıȡȺǰȵǰȺźȵĺȵǰԺọֵ̃ͬȽϣȵǰ൱ڱ൱ڳֵ൱ֵ̡ͨ÷ʾҲСʾʱҲȵĺ㡣ݷĹϵ,֪ȵǰ൱ڷ,൱ڷĸ,ֵ൱ڷֵ
2ȵ: ȵǰͺͬʱϻ߳ͬ0⣩ֵ
䣬ȵĻʡ
3ֵͻ
ֵķñȵǰԺĽһֵҲ
С
ݱȵĻʿѱȻȡĽһȣǰǻʵ 4:
ͼϾ룺ʵʾ= 5 2 1
ʾȵʽӽɱĸ˵м
2ڱĻĻĻʡ
3:еδ֪DZĻ 3ͷ
1: һ仯һҲű仯
ӦıֵҲ̣һͽǵĹϵϵ
ĸʾ: y/x=k(һ
2ɷ: һ仯һҲű仯
ӦĻһͽɷǵĹϵϵ
ĸʾ: xy=k(һ) IJ ռͼ һߺͽ 1
1ֱߣֱûж˵㣻죬ޣһԻֻܻһֱߡ
9 / 15
2ߣֻһ˵㣻ޡ
3߶Σ߶˵㣬ֱߵһ֣ޣУ߶Ϊ̡
4ƽߣͬһƽڣֱཻ߽ƽߡƽ֮Ĵ߳ȶȡ
5ߣֱֱཻʱֱ߽ഹֱһֱ
һֱߵĴ,ཻĵ㡣
ֱһ㵽ֱĴߵij㵽ֱߵľ롣
2
1һߣɵͼνǡǵĶ㣬߽ǵıߡ 2ǵķ
ǣС90Ľǽǡ ֱǣ90Ľǽֱǡ ۽ǣ90С180Ľǽ۽ǡ
ƽǣǵ߳һֱߣʱɵĽǽƽǡƽ180㡣 ܽǣǵһתһܣһغϡܽ360㡣 ƽͼ 1
1Աȣ4ǶֱǵıΡԳᡣ
2㹫ʽ ܳ=+2 = = 2
1߶ȣĸǶֱǵıΡ4Գᡣ 2㹫ʽ ܳ=߳4 =߳߳ 3
1߶ΧɵͼΡڽǺ180ȡξȶԡߡ
2㹫ʽ =סߡ2 εĸ=2µ εĵ=2¸ 3 a.Ƿ֣
Ƕǡ
ֱ һֱǡֱεǸΪ45ȣһԳᡣ
۽ΣһǶ۽ǡ b.߷֣
ȱΣ߳Ȳȡ
Σ߳ȣȣһԳᡣ
ȱΣ߳ȶȣڽǶ60ȣԳᡣ 4ƽı
1Ա߷ֱƽеı ԵıƽȡԽȣڵǵĶ֮Ϊ180ȡƽıױΡ
10 / 15
2㹫ʽ =סߣ =¸ =µ 5
1ֻһԱƽеıΡλߵµ͵һ롣һԳᡣ
2 ʽ=(ϵ+µ)ߡ2 =2£ϵ+µף ϵ=2¸-µ µ=2¸-ϵ 6Բ
1Բʶ
ƽϵһͼΡ
ԲģԲĵһԲġһĸoʾ
۰뾶ԲĺԲһ߶ν뾶һrʾ
ͬһԲ뾶ÿ뾶ijȶȡ
ֱͨԲIJ˶Բϵ߶νֱһdʾ
ͬһԲֱеֱȡ ͬһԲֱ뾶ijȣd=2r
ԲĴСɰ뾶 ԲλԲľ ԲԳᡣ 2ԲĻԲŷֿżľ루뾶
һֻŹ̶һ㣨Բģϣ װǦʼһֻתһܣͻһԲ
3ԲܳΧԲߵijԲܳ
ԲֱܳıֵԲʡĸбʾ ʱ=3.14
4ԲԲռƽĴСԲ
5㹫ʽ d=2r r=d/2 c=d c=2r s=r2 7
1εʶ
һ;˵뾶ΧɵͼνΡ ԲAB֮IJֽAB ۶ԲĵĽǽԲĽǡ
ͬһԲУεĴСεԲĽǵĴСйء һԳᡣ (2)㹫ʽ s=nr2/360 8
(1)뾶ȵͬԲɣԳᡣ (2)㹫ʽs=(R2-r2 9Գͼ
(1)һͼһֱ߶ۣͼܹȫغϣͼξԳͼΡۺڵֱ߽Գᡣ ͼ һ
1涼dzΣʱԵΣ
11 / 15
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