Evathyst:
Too many complexities in the use of shortcuts.


While inexperienced teachers may find this 'helpful' an experienced teacher knows otherwise. Students (especially primary school students) should be taught how to do pure calculations and not some tricks which will make them become mentally lazy.


I stand to be corrected though...


Nice work OP! At least, we adults can still tap into this 'annointing'

Dongreat:


See am. Wayo woman. No tap o else u will b lazy

EzePromoe:
Here is it!

57 (100-43) x 57 (100-43)
43+43=86 , 100-86=14
First two digit will be 14
Now for the last two digit,
43x43=1849

Now it is evident that 1849 is no two digit number. What you have to do then is to push the first two digit (18) and add it to the initial first two digit (14) , you will then get 32. i.e 57x57=(18+14)49=3249

Now this works for all numbers

Vivly:
.
I think this only works when the sum of the two digits is less than 10.
For example 67 * 11 isn't 6137.
It's 737. I stand to be corrected though.

Evathyst:
Too many complexities in the use of shortcuts.


While inexperienced teachers may find this 'helpful' an experienced teacher knows otherwise. Students (especially primary school students) should be taught how to do pure calculations and not some tricks which will make them become mentally lazy.


I stand to be corrected though...


Nice work OP! At least, we adults can still tap into this 'annointing'

Evathyst:
Lolz! You again?


Why do I keep running into you today self


Anyways, I once taught in a primary school. Believe me, using complex shortcuts to teach kids could be quite unrewarding. Maybe na those 'butty' them wey I teach sha O!


Them mumu no be small!

EzePromoe:
Here is it!

57 (100-43) x 57 (100-43)
43+43=86 , 100-86=14
First two digit will be 14
Now for the last two digit,
43x43=1849

Now it is evident that 1849 is no two digit number. What you have to do then is to push the first two digit (18) and add it to the initial first two digit (14) , you will then get 32. i.e 57x57=(18+14)49=3249

Now this works for all numbers

Dongreat:


Lol. Nah so. Mayb it's cosmic attraction as u knw u can't fight fate. Well it's still better to teach em cos majority will benefit wen writing an exam of very limited time.

Ps: am following u by d way. Who knows. Afterall it's a global village we live in, n follow me pls

Evathyst:
*Singing bumper-bumper by Wande Coal*


Hope to bump into you some other time soon!

Vivly:
.
I think this only works when the sum of the two digits is less than 10.
For example 67 * 11 isn't 6137.
It's 737. I stand to be corrected though.

Dongreat:
3. How To Multiply By 11
Finally! I can now multiply more than single digits by 11 in my head.

karferguso:

I don confirm this

Vivly:
.
I think this only works when the sum of the two digits is less than 10.
For example 67 * 11 isn't 6137.
It's 737. I stand to be corrected though.

Dongreat:


Carry go Bro. Now ur babe go fear u when u give her full details of the amount of food she go by for market

Vivly:
.
I think this only works when the sum of the two digits is less than 10.
For example 67 * 11 isn't 6137.
It's 737. I stand to be corrected though.

Techhead:
I guess these are methods used to teach in standard schools.
Probably abroad sef.
Nice techniques that'll make the math stick not these dumb teaching methods we've got in most naija schools.

Dongreat:


Actually these are techniques used in d most EU skuls n the Americas. I hope we have teachers watching n bookmarking this page for use.

Vivly:
.
I think this only works when the sum of the two digits is less than 10.
For example 67 * 11 isn't 6137.
It's 737. I stand to be corrected though.