Please explain adding and subtracting Integers

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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.

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19 Answers

Anonymous 0 Comments

Adding a number to another number means counting that many times past it. For example, to calculate 4 + 3 you count three times past four: five, six, seven – so the answer is 7. To calculate 3 + 6 you count six times past three: four, five, six, seven, eight, nine – so the answer is 9. And so on.

To subtract a number from another number is to count that many times back, or down. So to calculate 5 – 3 you count three times down from five: four, three, two – the answer is 2. To calculate 7 – 4 you count four times down from seven: six, five, four, three – the answer is 3.

If the second number in the subtraction is larger than the first one then you go into negatives. To calculate 2 – 3 you count three times back from two: one, zero, minus one – the answer is -1. To calculate 3 – 5 you count five times back from three: two, one, zero, minus one, minus two – the answer is -2.

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