He does mental math requiring keeping track of numbers (i.e. 42 times 37).
I notice that being able to enjoy juggling large amounts of digits requires a certain predisposition.
I do lots of math with my 9 year old and he likes to do (and discover) tricky (at his level) properties of numbers like noticing that 3 cancels in 3/2 times 4/3 (he doesn't know the 'rules' governing multiplication of fractions but somehow juggles the numbers nonetheless - in this case he notices that 3/2 is 1,5 is one and a half...). I'm quite sure he enjoys it as I talked about this exercise with his older brother when he chimed in. But he doesn't like mentally multiplying two-digit numbers (though he can). He rather does rough estimates.
Why am I telling this? There are differnt kinds of working memory and other brain functions. And doing multiplication exercises can be fun but need not. Why do it? Could be that it's easy/natural. Could be that it is fun. Could be that it is challenge. Could be that it is hard work but wanting to conform to expectations may do the trick. What's it in your (sons) case?
My son is mathematically inclined in terms of skill and interest.
I continually train my ten-year-old son’s working memory, and urge parents of other young children to do likewise. While I have succeeded in at least temporarily improving his working memory, I accept that this change might not be permanent and could end a few months after he stops training. But I also believe that while his working memory is boosted so too is his learning capacity.
I have a horrible working memory that greatly hindered my academic achievement. I was so bad at spelling that they stopped counting it against me in school. In technical classes I had trouble remembering what variables stood for. My son, in contrast, has a fantastic memory. He twice won his school’s spelling bee, and just recently I wrote twenty symbols (letters, numbers, and shapes) in rows of five. After a few minutes he memorized the symbols and then (without looking) repeated them forward, backwards, forwards, and then by columns.
My son and I have been learning different programming languages through Codecademy. While I struggle to remember the required syntax of different languages, he quickly gets this and can focus on higher level understanding. When we do math learning together his strong working memory also lets him concentrate on higher order issues then remembering the details of the problem and the relevant formulas.
You can easily train a child’s working memory. It requires just a few minutes of time a day, can be very low tech or done on a computer, can be optimized for your child to get him in flow, and easily lends itself to a reward system. Here is some of the training we have done:
The key is to keep changing how you train your kid so you have more hope of improving general working memory rather than the very specific task you are doing. So, for example, if you say a sequence and have your kid repeat it back to you, vary the speed at which you talk on different days and don’t just use one class of symbols in your exercises.