Addition Mojo (Overview)

  

The goal of Math Mojo is to have you understand the guts of math and numbers so well that you feel confident to go on and learn about and understand the world and its patterns.   To get that good at numbers, you must be able to add any kind of numbers you might face in everyday life with speed, accuracy and confidence. Merely being "able to add" is not enough for a person who intends to be able to excel in life.   Addition is the first operation we usually learn. Because it seems so simple at first, we think there is "nothing to it," so we don't put a lot of effort into it after the first few grades of school. That leads to a funny situation, namely that you could be in college, and still be using the same addition methods you used in second grade. There is something very wrong with being at a second grade level your whole life, isn't there?  Starting with addition of two 1-digit numbers, there are vastly superior ways to add than you have learned. If you are past the elementary grades, and cannot do every example on this page (below) in your head, without pencil and paper, you are missing a fairly easy skill to gain.  If you go through the lessons systematically, and don't fall into the "oh-I-already-know-how-to-do-that" trap, you can get to the point of being able to do huge additions mentally in a very short time. The lessons are different from the way you learned in school, and won't just be a rehashing of old drills. Start at the beginning, because each lesson builds on stuff you probably were never taught.  For the time being, there is only one lesson up on addition, and you can get there from the link in the box below. You can also go to the abax lessons on addition to learn the basics. Other speed-math lessons will be up and linked to from this page soon.

NEW! Start at the very beginning. Sure you know how to add on your fingers, but you probably have never conciously thought about how you do it, or how you learned to do it. This short lesson (interactive) will give you some new insight into something you could do since you were old enough to pick your nose. Don't skip it just because you "already know that stuff, man!" That is a bad trap to fall into, especially if you are learning about Mojo. The kind of minor insights you can get from lessons like this are the stuff major insights can be parlayed into and built upon, so check it out now. It will only take a few minutes.

I want to learn cool ways to do problems like this: or this:   7 + 8 7+8   Addition of two 1-digit numbers, totalling more than 10.	I want to learn cool ways to do problems like this: or this:   4 7 + 6 5 47 + 65   Addition of two 2-digit numbers
I want to learn cool ways to do problems like this: or this:     9 , 3 2 8 + 8 6 , 5 3 6 9,328 + 86,536   Addition of two multi-digit numbers
I want to learn cool ways to do problems like this: or this:   7   8   9   6   5 + 2 7+8+9+6+5+2   Addition of many 1-digit numbers	I want to learn cool ways to do problems like this: or this:   4 7   6 5   3 2   8 8   9 1 + 2 6 47+65+32+88+91+26   Addition of many 2-digit numbers
I want to learn cool ways to do problems like this: or this:     2 6 , 1 3 8       5 , 1 7 5   5 0 2 , 0 9 9     1 5 , 4 0 2     2 6 , 3 3 2 + 6 7 7 , 9 8 7 26,138 + 5,175 + 502,099 + 15,402 + 26,332 + 677,987   Addition of many multi-digit numbers

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