I am trying to start again with math, giving it a second shot after i completly gave up on math for about 10y. I looked up multiple cheet sheets and rules, but they all say different things. My problem especially +29 – +59. The rule thing i got from the internet says + – + = larger integer’s sign, but then another tutorial said well if you reverse + and -, then you can get the answer that way, but they are 2 different answers. And i’m confused too about what, like what’s the point of doing the operations if we can just change whatever symbols we want, but then we do but nothing matches as the result so i’m just confused.
I just don’t get it, none of the rules match and in my head none of it even makes any sense. So i feel like i need to memorize the rules, but there are no rules. Pls help, i started crying due to the fustration because now i remembered why i despised math so much.
Update: I started being able to complete operations, even of 5 in a row. Thank you all! Ended up dropping tje unecessary + and just – – = + idk, but i’m doing it.
In: 2
Look at it this way: + is what you have, – what you owe. Addition is adding to your pocket, substraction is paying, but a substraction is just an addition where one of the numbers is negative and the other is not, so you can write a substraction like an addition changing + by -. That’s it:
So, 29 + -59 = you have $29, you pay $59. Now you owe $30, cause you paid with more money than what you had. Like someone else’s money that you had in your pocket. So, 29 + -59= -30.
70 – +64 = 70 – 64 = 6. $6 *you still have*, cause you had 70 and paid $64.
70+ -80 + 100 = you had $70 then you paid $80 and collected $100 (or collected $100 and then paid $80, it doesn’t matter). That’s $170- $80 or -$10 +$100 = $90. Positive, so obviously *you still have* because you *collected more than what you paid*.
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