Can't figure out how it works, but is works.
Just good old numbers fun, I guess.
This is just a twist on the normal multiplication method they taught you in school.
Post some real speed math !
Example
............3...2
............1...6
Now the first video is almost useful.
He is teaching you to add from left to right, instead of from right to left.
This is useful for doing simple math in your head.
But he is skipping a key step of mental math.
You have to restate the problem after each math step.
Say 24 plus 17.
So you add the 10 to the 24.
The new problem is 34 plus 7.
Then add that.
By repeating this method, you can add large numbers safely.
But you have to put the new problem into your memory by stating it.
I love math and these are fun. Thx! (Math easy, Language, huh?)
Consider yourself a warrior fighting Common Core!
My kids went to a great public school system but I still homeschooled them in Math (used Kumon) and conservative American History.
Still waiting for Trump to dissolve Common Core.
Khrushchev told us in the 50’s they would bring our downfall through our school system.
They are winning.