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Singapore math word problems amazon Videos
- 1. Math - Fraction and word problem in Chinese
- 2. " times" in decimal word problems
- 3. Multiplication and addition in one word problem
- 4. Word Problems on Area
- 5. Average speed
- 6. Area of triangles and parallelograms
- 7. AI vs Human - Google AlphaGo vs Fan Hui2p(Chinese, European Champion) пЅњGame1-2, Even Game, 2015
Math - Fraction and word problem in Chinese
https://www.etsy.com/shop/yanghaiying ...
User Comments
Rakkurai
commented
on 07 Nov 2013
I don't see why you think she didn't multiply straight across? Because she
did. The only difference between your way and hers is she divided the
numerator 3 and denominator 6 by 3 before she multiplied.
Also; you can multiply straight across much like you can multiply whole
numbers:
ex) 2 x 2 = 4 or (2/1) x (2/1) = (4/1)
ex) 4/3 x 5/8 = 20/24 or 5/6 (i did the reverse of you; multiply across
then divide out)
ex) 4/3 x 5/8 or 1/3 x 5/2 = 5/6 (which is the way you did it; divided out
before multiplying across)
ScerybralTap
commented
on 02 Nov 2013
The diagram you drew proves why you can multiply straight across. Remember,
denominator represents how many parts equal a whole (whole = 1), and the
numerator represents the number of given parts. When adding or subtracting
fractions, the ratio size of the denom. and the numer. is not changed, you
are still working within the confines of that original ratio. When
multiplying, the ratio of parts to whole is being increased. 1/2->2
'parts'=whole; 1/2x1/3->each 'part' is divided into thirds->1/6
TheFordium
commented
on 02 Nov 2013
Haiying, you do realise that with fractions you can multiply straight
across? i.e. the two top numbers and two bottom numbers multiply to give
you the top and bottom numbers of the new fraction? (So 5/6 x 3/4 would be
15/24, which cancels down (divides by 3 on top and bottom) to 5/8.) Unless
you just prefer your way, which is fine of course :>
TheFordium
commented
on 06 Nov 2013
Did I need to watch more than about 5 minutes to see that something that
could have taken maybe 20 seconds, instead took 5 minutes? I was only
talking about that part anyway...
TheFordium
commented
on 02 Nov 2013
I don't know, that's just what we were taught at school. When multiplying
fractions you can multiply the tops with the bottoms, and it will give you
the right answer :)
Phil R
commented
on 05 Nov 2013
You didnt watch the whole thing, did you?
yanghaiying
commented
on 02 Nov 2013
Why can you multiply straight across?
" times" in decimal word problems
multiplication and addition in one word problem
This problem is from the book: Word Problem: Detailed Explanations of Reasoning and Solving Strategies ( volume 6). you can find the book in amazon.com ...
Word Problems on Area
Powered by //www.tenmarks.com . In this video lesson, we will learn to solve a problem based on area of a circle.
average speed
The word problem is from the book: Word Problems: Detailed Explanations of reasoning and solving strategies ( volume 10)—5th grade second semester.
area of triangles and parallelograms
The word problem is from the book: Word Problems: Detailed Explanations of reasoning and solving strategies ( volume 9)—5th grade first semester. The book ...
AI vs Human - Google AlphaGo vs Fan Hui2p(Chinese, European Champion) ｜Game1-2, Even Game, 2015
Daily Update：Click Here To SUBSCRIBE //goo.gl/SMfO93 ・Greatest Go Games Ever Played https://goo.gl/rvtw6S ・Go game Match by Yun7d ...
User Comments
& Naomi Yun (ネット碁7段ゆん)
commented
on 30 Jan 2016
Thank you for your comment!!
Your words encouraged me.
Yunqing Liu
commented
on 29 Jan 2016
awesome!
Tony Smith
commented
on 29 Jan 2016
Great!
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