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11-19的乘法口诀,开眼界了 (转载)
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11-19的乘法口诀,开眼界了 (转载)# Joke - 肚皮舞运动
q*n
1
比尔盖兹最近在高中的演说-----教育孩子的金玉良言
教育孩子的金玉良言
【转载】
Bill Gates' Speech at a High School about:
eleven (11) things they did not and will not learn in schools. He talks
about how
feel-good, politically correct teachings, created a generation of kids with
no concept
of reality and how this concept set them up for failure in the real world.
Rule 1 : Life is not fair - get used to it!
Rule 2 : The world doesn't care about your self-esteem.
The world will expect you to accomplish something
BEFORE you feel good about yourself.
Rule 3 : You will NOT make $60,000 a year right out of high school.
You won't be a vice-president with a car phone until you earn both.
Rule 4 : If you think your teacher is tough, wait till you get a boss
Rule 5 : Flipping burgers is not beneath your dignity.
Your Grandparents had a different word for burger flipping:
They called it opportunity.
Rule 6 : If you mess up, it's not your parents' fault,
so don't whine about your mistakes, learn from them.
Rule 7 : Before you were born, your parents weren't as boring
as they are now. They got that way from paying your bills,
cleaning your clothes and listening to you
talk about how cool you thought you were:
So before you save the rain forest
from the parasites of your parent's generation,
try delousing the closet in your own room..
Rule 8 : Your school may have done away with winners and losers,
but life HAS NOT. In some schools, they have abolished failing grades
and they'll give you as MANY TIMES as you want to get the right answer.
*This doesn't bear the slightest resemblance to ANYTHING in real life.
Rule 9 : Life is not divided into semesters.
You don't get summers off and very few employers
are interested in helping you FIND YOURSELF.
*Do that on your own time.
Rule 10 : Television is NOT real life.
In real life people actually have to leave the coffee shop and go to jobs.
Rule 11 : Be nice to nerds.
Chances are you'll end up working for one..
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d*9
2
我的肤质补充:
敏感体质,所以皮肤也是敏感皮肤。很白,容易产生肤色不均的问题。混合型,脸颊干,T区比较油,有T区毛孔问题。
总体来说还是属于中性偏干一点的。偶而生理期前额头和下巴会冒几个小痘痘,生理期过后就下去了。
【 以下文字转载自 Diana2009 俱乐部 】
发信人: diana2009 (diana), 信区: Diana2009
标 题: 保湿心得(未完)
发信站: BBS 未名空间站 (Sat Jul 17 00:29:47 2010, 美东)
Diana原创,转载请注明
基本的:
每天早晨一杯蜂蜜水
多喝水和果蔬汁
觉得不错的保湿护肤品:
PS:我会列一些我用过的觉得不错的保湿品,但是不代表要每天都一层一层的叠加到脸上,mm们还是要选择适合自己
的,有些东西不需要同时用的。:)
水劑類:
1. SKIN CEUTICALS HYDRATING B5 GEL
http://www.skinceuticals.com/_us/_en/catalog/moisturize/Hydrating-B5-Gel.htm
Contains vitamin B5 to help wi
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z*n
3
【 以下文字转载自 Texas 讨论区 】
发信人: sunnyshen (sunnyshen), 信区: Texas
标 题: 11-19的乘法口诀,开眼界了 (转载)
发信站: BBS 未名空间站 (Thu Apr 4 10:12:59 2013, 美东)
【 以下文字转载自 afterschool_k12 俱乐部 】
发信人: sunnyshen (sunnyshen), 信区: afterschool_k12
标 题: 11-19的乘法口诀,开眼界了
发信站: BBS 未名空间站 (Thu Apr 4 10:10:18 2013, 美东)
当中国妈妈因为小朋友会背99乘法高兴的同时,印度小孩已经在背1919乘法了!
难怪近几年印度进步得那么快~
印度的九九表是从1背到19(→19X19乘法?),不过您知道印度人是怎么记
11到19的数字吗?
我是看了下面这本书之后才恍然大悟的。
印度式计算训练 」
请试着用心算算出下面的答案:
13X12=?
(被乘数)(乘数)
印度人是这样算的。
第一步:
先把(13)跟乘数的个位数(2)加起来,
13+2=15
第二步:
然后把第一步的答案乘以10 (也就是说后面加个0)
第三步:
再把被乘数的个位数(3)乘以乘数的个位数(2),
2X3=6
(13+2)X10+6=156
就这样,用心算就可以很快地算出11X11到19X19了喔!
这真是太神奇了!
我们试着演算一下:
14×13:
(1)14+3=17
(2)17×10=170
(3)4×3=12
(4)170+12=182
16×17:
(1)16+7=23
(2)23×10=230
(3)6×7=42
(4)230+42=272
19×19
(1)19+9=28
(2)28×10=280
(3)9×9=81
(4)280+81=361
真的好简单喔!怎不早点让我们知道呢?
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q*n
4
亮点在最后一句呀!
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y*y
5
沙发,对la mer cream我都要放弃了,涂到脸上抹不开,在掌心搓完按到脸上好像都没
有剩多少,又怕覆盖不全,这1/4够吗? 本人脸大 :)
la mer cream 夏天用会太油吗
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a*e
6
真的耶,好神奇哦
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k*m
7
哈哈

【在 q********n 的大作中提到】
: 亮点在最后一句呀!
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f*8
8
我觉得lamer cream一点都不油啊,当然是对秋冬来说,不配水磁场我用这个上妆后还
会有点脱皮。。。。。是不是我皮肤太干了。。。
另外我觉得lamer除了cream还不错,那个lotion和gel cream一点都不好用。。。粉底霜
很不错,感觉有滋养皮肤的效果还。
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H*g
9
(10a+b)(10c+d)=100ac+10ad+10bc+bd=10(10ac+ad+bc)+bd=10(10a+b)xc+ad)+bd
only when a=1&&c=1
(10a+b)(10c+d)=10(10a+b)+d)+bd
所以光是10-19内相乘才管用,而且基本也没省什么事。
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m*d
10
mark

with

【在 q********n 的大作中提到】
: 比尔盖兹最近在高中的演说-----教育孩子的金玉良言
: 教育孩子的金玉良言
: 【转载】
: Bill Gates' Speech at a High School about:
: eleven (11) things they did not and will not learn in schools. He talks
: about how
: feel-good, politically correct teachings, created a generation of kids with
: no concept
: of reality and how this concept set them up for failure in the real world.
: Rule 1 : Life is not fair - get used to it!

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s*r
11
shafa 多谢分享 lz可以说说自己的皮肤性质么? 可以有个比较
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i*g
12
就是用展开因式的方法得出来的
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t*r
13
属实!!!

【在 q********n 的大作中提到】
: 亮点在最后一句呀!
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w*a
14
upupupupup~~~~~~~~~~~~~~
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z*n
15
我看到过一个适用于所有二位乘法的:
个位乘个位占后两位,十位乘十位占前两位,个位十位交叉乘相加再加到中间两位,貌
似比传统的快些。
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u*a
16
诚信啊 . . .
The Truth about these rules claimed to be authored by Bill Gates:
This is not from Bill Gates. It's an excerpt from the book "Dumbing Down
our Kids" by educator Charles Sykes. It is a list of eleven things you did
not learn in school and directed at high school and college grads.
Someone even changed the dollar amount from 40k to 60k in order to take into
account of inflation. LOL.
But do NOT dumb down ourselves by believing quotes from so-called
celebrities!
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d*9
17
补充了,在一楼

【在 s*********r 的大作中提到】
: shafa 多谢分享 lz可以说说自己的皮肤性质么? 可以有个比较
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g*n
18
一点儿都不难,小时候上数学班还记过十位数字不一样的俩数的乘法口诀。
我现在算19以内乘法都心算的。比如18X15,你就口算,8+5=13,然后加上10=23,然后
再乘10=230,最后再加上8X5就是230+40=270
比如19X13,你口算,9+3=12,然后加上10=22,然后再乘10=220,最后再加上9X3就是
220+27=247
难一些比如29X23,可以口算9+3=12, 然后加上20=32,然后再乘20=640,最后再加上
9X3就是640+27=667
同理,39X33,可以口算9+3=12, 然后加上30=42,然后再乘30=1260,最后再加上9X3就
是1260+27=1287
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u*a
19
This list is the work of Charles J. Sykes, author of the 1996 book Dumbing
Down Our Kids: Why American Children Feel Good About Themselves But Can't
Read, Write, Or Add. (Sykes' list was published in numerous newspapers,
although it did not appear in his 1996 book. It did, however, form the meat
of Sykes' 2007 book, 50 Rules Kids Won't Learn in School: Real-World
Antidotes to Feel-Good Education.) Many versions omit the last three rules:
Rule No. 12: Smoking does not make you look cool. It makes you look
moronic. Next time you're out cruising, watch an 11-year-old with a butt in
his mouth. That's what you look like to anyone over 20. Ditto for "
expressing yourself" with purple hair and/or pierced body parts.
Rule No. 13: You are not immortal. (See Rule No. 12.) If you are under
the impression that living fast, dying young and leaving a beautiful corpse
is romantic, you obviously haven't seen one of your peers at room
temperature lately.
Rule No. 14: Enjoy this while you can. Sure parents are a pain, school's
a bother, and life is depressing. But someday you'll realize how wonderful
it was to be a kid. Maybe you should start now. You're welcome.
Advice columnist Ann Landers printed the first ten items (uncredited)
several times, and this list was also used by radio commentator Paul Harvey.
The prize for misattribution, however, has to go to the Atlanta Journal and
Constitution, which published the list twice in the space of three weeks in
mid-2000, the first time crediting it to "Duluth state Rep. Brooks Coleman
of Duluth," and the second time to Bill Gates.
Read more at http://www.snopes.com/politics/soapbox/schoolrules.asp#5oJ7My8KUqJ8mXwk.99
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s*k
20
等 La Mer gel cream的。。。

【在 d*******9 的大作中提到】
: 补充了,在一楼
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l*k
21
成年人算11-19之内的乘法还要走这么多步?靠

【在 z**n 的大作中提到】
: 【 以下文字转载自 Texas 讨论区 】
: 发信人: sunnyshen (sunnyshen), 信区: Texas
: 标 题: 11-19的乘法口诀,开眼界了 (转载)
: 发信站: BBS 未名空间站 (Thu Apr 4 10:12:59 2013, 美东)
: 【 以下文字转载自 afterschool_k12 俱乐部 】
: 发信人: sunnyshen (sunnyshen), 信区: afterschool_k12
: 标 题: 11-19的乘法口诀,开眼界了
: 发信站: BBS 未名空间站 (Thu Apr 4 10:10:18 2013, 美东)
: 当中国妈妈因为小朋友会背99乘法高兴的同时,印度小孩已经在背1919乘法了!
: 难怪近几年印度进步得那么快~

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c*6
23
顶!
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I*y
24
18*15还需要算……

【在 g******n 的大作中提到】
: 一点儿都不难,小时候上数学班还记过十位数字不一样的俩数的乘法口诀。
: 我现在算19以内乘法都心算的。比如18X15,你就口算,8+5=13,然后加上10=23,然后
: 再乘10=230,最后再加上8X5就是230+40=270
: 比如19X13,你口算,9+3=12,然后加上10=22,然后再乘10=220,最后再加上9X3就是
: 220+27=247
: 难一些比如29X23,可以口算9+3=12, 然后加上20=32,然后再乘20=640,最后再加上
: 9X3就是640+27=667
: 同理,39X33,可以口算9+3=12, 然后加上30=42,然后再乘30=1260,最后再加上9X3就
: 是1260+27=1287

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u*a
25
比尔盖茨夫妇于2014年在斯坦福大学给了毕业生一席箴言:
Full text:
http://news.stanford.edu/news/2014/june/gates-commencement-rema
At a time when inequality is becoming one of the central issues of our time,
the Gateses, whose foundation has become one of the most formidable
philanthropic enterprises in history, exhorted graduates to pursue a mission
-driven life. While both speakers were inspiring, it was Melinda Gates who
delivered the most stirring lines. Here’s she is on channeling optimism:
1) Optimism for me isn’t a passive expectation that things will get better;
it’s a conviction that we can make things better—that whatever suffering
we see, no matter how bad it is, we can help people if we don’t lose hope
and we don’t look away.
2) Let your heart break. It will change what you do with your optimism.
3) Bill worked incredibly hard and took risks and made sacrifices for
success. But there is another essential ingredient of success, and that
ingredient is luck—absolute and total luck.
When were you born? Who were your parents? Where did you grow up? None of us
earned these things. They were given to us.
When we strip away our luck and privilege and consider where we’d be
without them, it becomes easier to see someone who’s poor and sick and say
“that could be me.” This is empathy; it tears down barriers and opens up
new frontiers for optimism.
So here is our appeal to you: As you leave Stanford, take your genius and
your optimism and your empathy and go change the world in ways that will
make millions of others optimistic as well.
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a*s
26
你们太不厚道了,总嘲笑人文科大妈

【在 H********g 的大作中提到】
: (10a+b)(10c+d)=100ac+10ad+10bc+bd=10(10ac+ad+bc)+bd=10(10a+b)xc+ad)+bd
: only when a=1&&c=1
: (10a+b)(10c+d)=10(10a+b)+d)+bd
: 所以光是10-19内相乘才管用,而且基本也没省什么事。

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g*n
27
废话,不算你记那么多没用的数字干什么。

【在 I*******y 的大作中提到】
: 18*15还需要算……
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c*k
28
18x15你那个办法太慢了

【在 g******n 的大作中提到】
: 废话,不算你记那么多没用的数字干什么。
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g*n
29
嘴巴一叨叨,3秒,不费脑子。八五十三,二十三,二百三,五八四十,二百七。

【在 c******k 的大作中提到】
: 18x15你那个办法太慢了
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R*a
30
还是用siri快

【在 g******n 的大作中提到】
: 嘴巴一叨叨,3秒,不费脑子。八五十三,二十三,二百三,五八四十,二百七。
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H*g
31
18x15太特殊了,可以换成9x30。如果算13x17你的方法就好了。

【在 g******n 的大作中提到】
: 嘴巴一叨叨,3秒,不费脑子。八五十三,二十三,二百三,五八四十,二百七。
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M*n
32
13*17 = 15^2-2^2 = 221

【在 H********g 的大作中提到】
: 18x15太特殊了,可以换成9x30。如果算13x17你的方法就好了。
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H*g
33
那12x19=15.5^2-3.5^2=?

【在 M******n 的大作中提到】
: 13*17 = 15^2-2^2 = 221
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M*n
34
12*19=240-12=228...
随机应变好吗

【在 H********g 的大作中提到】
: 那12x19=15.5^2-3.5^2=?
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H*9
35
小时候还真不知道这样算

【在 z**n 的大作中提到】
: 我看到过一个适用于所有二位乘法的:
: 个位乘个位占后两位,十位乘十位占前两位,个位十位交叉乘相加再加到中间两位,貌
: 似比传统的快些。

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a*o
36
呃,这个算法哥几十年前就知道了。
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R*d
37
各位高教育的能不能不要再说乘法了。 会这样乘又如何? 还能翻天了?

【在 a*o 的大作中提到】
: 呃,这个算法哥几十年前就知道了。
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M*8
38
几十年前中国有个著名速算家叫“大便丰收”
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i*g
39
只要十位数相同,都可以用类似的算法。说白了就是一个因式分解,再稍作因式合并。
比如说
Mm * Mn=(M+m)*(M+n)=M(M+m+n)+m*n=M(Mm+n)+m*n
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c*n
40
好神奇啊

【在 z**n 的大作中提到】
: 我看到过一个适用于所有二位乘法的:
: 个位乘个位占后两位,十位乘十位占前两位,个位十位交叉乘相加再加到中间两位,貌
: 似比传统的快些。

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l*e
41
我只能用计算器,心算只能算100以内的加减法
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H*g
42
现在还有教小孩珠速算的,可以算很多位数字的加减乘除

【在 M******8 的大作中提到】
: 几十年前中国有个著名速算家叫“大便丰收”
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