This has come up in recent social media posts; That many people rely on visual techniques when solving mathematical equations. How do you do "mental math," when you cannot create mental images? Any tips or strategies to share?
Usually what I do is change the numbers to make the math easier. i.e. adding 7 + 5, I go “okay, add three to 7 from the 5 to make 10, then add the two left over to make 12”.
But for anything REALLY complicated, forget it.
I genuinely don’t understand.u. I just do 68+7= 75… No visualising, just remember the numbers and do the sum.
For bigger sums I just break down the numbers:
3247 = (4710)+(4710)+(4710)+(47*2) = 1504
No idea how mental images are meant to help? But then again, no idea what mental images are…
(Sorry if posted twice, the website/my phone don’t seem to agree)
It’s not as if there are loads of people out there who are super good at mental maths. I’ve come across a lot of people far worse at it than me, but if I do have to calculate something I do it using my memory, and calculate as I would if I were using pen and paper, rather than a calculator. I have an imaginary notebook in my head for this purpose.
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