Explain the integer rules for addition and subtraction?

To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite. Here's how to add two positive integers: 4 + 7 = ?

Step-by-step explanation:

I found this if it is helpful:

To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.

Meaning

+ plus + = +

+ plus - = + or - depending on which number is bigger

- plus - = -

picture below

570, the answer is 570, hope it