When you need to multiply 7*8 do you simply have it memorized, or do you need to add, subtract or otherwise connect it to another math fact that you know better?
That is do you simply think "56" or are there more thoughts that lead to 56?
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Not convinced I do it the same way every time. This time, I relied on having the value of 7-squared memorized then added another 7.
@futurebird I used to remember almost the entire multiplication table when I was at school, but I forgot most of it shortly after the final exams. But I can calculate it as something like 7*8=14*4=28+28=40+16=56
@futurebird I think 56, then doubt myself and think 5,6,7,8. Yes. 56=7*8
@futurebird I remember learning my times tables as a kid. I still have the desk that I learned them at 😊
Some of that has faded - for some reason I always stumble over results in the 40-60 range. So for this one (7*8) I would probably guess 56 or thereabouts, then check my work knowing that 8 squared is 64.
@futurebird 7×8 = 5×8 + 2×8 = (10×8)/2 + 2×8 = 80/2 + 8 + 8 = 40 + 16 = 56
easy
@futurebird when I was little I hated math and did everything to get out of doing any math. So I memorized the times tables, which I guess must have seemed easier? Anyway I remember being able to recite the correct answer quickly when it was just numbers, but being stumped when it was a word problem with apples or whatever.
@futurebird I know my squares, so I do 7*7 and then add 7.
@futurebird I will admit to doing 7×7 in my head and then adding seven!
ohk im happy with the poll result, im also one of those that have some basic math thingies memorized and not really do any math to figure it out... phew!
@futurebird
Memorized, sure, but that particular product takes me a second to remember it.
I have a lot of anchor points in the times table memorized and 7*7 and 8*8 are two of them. I use them to get to the close by result quickly
@futurebird I don't instantly know what 7*8 is, but I do know what 8*7 is.
@futurebird I knkw 7x7=49 and I add another 7.