To: RoosterRedux
I tested the box multiplication system and the squaring stuff this morning.
Can't figure out how it works, but is works.
Just good old numbers fun, I guess.
To: RoosterRedux
3 posted on
08/07/2017 3:51:33 PM PDT by
BBB333
(The Power Of Trump Compels You!)
To: RoosterRedux
Bm for later in school year
4 posted on
08/07/2017 3:51:46 PM PDT by
wyowolf
(Be ware when the preachers take over the Republican party...)
To: RoosterRedux
7 posted on
08/07/2017 3:59:52 PM PDT by
Sergio
(An object at rest cannot be stopped! - The Evil Midnight Bomber What Bombs at Midnight)
To: RoosterRedux
To: RoosterRedux
I remember a trick for multiplying by 11.
34 x 11 is calculated by splitting 34 and using the sum for the middle digit.
or
34 is 3 (3+4) 4 or 374
45x11 is 495
55x11 is 5 (10) 5 or 605
11 posted on
08/07/2017 4:09:56 PM PDT by
Vic S
To: RoosterRedux
Thank you so much for this and the earlier one of squaring. I sent the links to my homeschooling daughter and she loves this guy.
To: RoosterRedux
I hated Algebra and Geometry in high school and barely passed it . However , I have a special gift for doing addition , subtraction and multiplication in my head at lightening speed . Super fast at doing calculations on a blackboard , too . Amaze my English students and the math teachers at my JHS in Japan . ^_^
14 posted on
08/07/2017 4:21:06 PM PDT by
sushiman
(i)
To: RoosterRedux
Is this part of the common core garbage?
15 posted on
08/07/2017 4:23:49 PM PDT by
Jacquerie
(ArticleVBlog.com)
To: RoosterRedux
I would have been done with the multiplication problem in half the time doing it the traditional way.
18 posted on
08/07/2017 4:40:55 PM PDT by
ETL
(Obama-Hillary, the REAL Russia-US scandal (UraniumOne Deal, Missile Defense, Nukes) See my home page)
To: RoosterRedux
19 posted on
08/07/2017 4:44:49 PM PDT by
ETL
(Obama-Hillary, the REAL Russia-US scandal (UraniumOne Deal, Missile Defense, Nukes) See my home page)
To: RoosterRedux
20 posted on
08/07/2017 4:46:41 PM PDT by
harpu
( "...it's better to be hated for who you are than loved for someone you're not!")
To: RoosterRedux
22 posted on
08/07/2017 5:39:10 PM PDT by
ResisTyr
(Resistance to tyrants is obedience to God " ~Thomas Jefferson)
To: RoosterRedux
26 posted on
08/07/2017 11:00:14 PM PDT by
Lurkina.n.Learnin
(I'm tired of the Cult of Clinton. Wish she would just pass out the Koolaide)
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