Anyone else struggle with maths?
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i have a masters degree in math but i still use a calculator anytime either of the numbers is 2 digits or more
you’re breaking my brain!
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i have a masters degree in math but i still use a calculator anytime either of the numbers is 2 digits or more
affiliate@lemmy.world I have a masters degree in physics, and I just straight up don’t do mental math, and never have. Math is for pencils and notepads. And I love pencils and notepads!
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This is correct in JavaScript math
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I was the opposite. Math was, if not easy, then simple. Every math problem has a specific set of steps you take to solve it, and a single objective answer. Unlike literature, there’s no room for differing opinions or interpretation. It meshed very nicely with my black-and-white worldview.
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This is correct in JavaScript math
Concatenation, then binary -> decimal. Computers are weird. People are weirder. 🤪
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I have studied so much goddamn math in my life…
…and yet the hardest parts of being a trainer has been a) counting reps and b) subtracting 45 from a number and dividing it by 2.
That last one is easy. Given any x,
(x - 45)/2 = lost gains. If you still fit through doors, put that plate back on
The derivation is
a bitchleft as an exercise for the reader -
I was the opposite. Math was, if not easy, then simple. Every math problem has a specific set of steps you take to solve it, and a single objective answer. Unlike literature, there’s no room for differing opinions or interpretation. It meshed very nicely with my black-and-white worldview.
Same here. Math was the one place I felt like things made sense. The subjectivity of arts and literature drove me crazy.
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Within the margin of error.
My dad lost faith in my Math skills when I guessed the result once
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What about basic mental arithmetic?
People have their strengths. Although knowing how to halve, double, etc. on small numbers quickly is quite useful. Rounding makes this easier. 3 for $6.49 is > 3/6 so like 2.25
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When Common Core math came out and people were up in arms against it, I wanted to know what the big deal was. I researched it, read that it makes mental math easier, and deciding to learn/practice it myself.
I understand the parents who struggled to help kids with their homework, since they weren’t taught the same way and if you’re just thrown into it, it’s hard to figure out. Though how it turned into this big hullabaloo was an extreme reaction. Mental math has become very easy for me since learning it, which makes me think many of us missed out on a method that could’ve helped us a lot.
So, no, I don’t struggle with math. What I struggle with is the confidence to believe I’ve come to the right answer. I usually do math calculations more than once because I doubt myself. My first college mathematics professor gave me a reality check about it once, as he was getting frustrated that I wouldn’t put my hand up even though he knew I had figured out the answers. I can still see him standing there, going, “Come on, Whats_your_reasoning, I know you’ve got it. What’s the answer? Just say it!”
I’ve never really interacted with Common Core in any form; I was out of public school long before it became commonplace and I guess my kid isn’t old enough to encounter it yet. As such, I have no real opinion nor understanding of it.
However, whenever I interact with people discussing it, I think of Tom Lehrer.
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