This week for math I have revised integers.
Integer addition and subtraction is the process of adding/subtracting negative and positive numbers. (Is different to integers by itself).
Two positives equal another positive when adding together, For example (4+9=13).
But when converted to negatives it equals the same just as a negative. For example (-4+-9=-13).
Negative and positive are controlled by which number is greater and that decides wether the answer is a negative number or a positive number. For example (-4+9=13) and (-9+4=-13).
Now moving onto subtraction integers. For positive and positive its just regular subtraction (4-9=5).
Negative and negative on the other hand equal a positive when the process is done. For example (-4 – -9 = 13)
Negative and positive is putting you further towards negative whilst positive and negative push closer towards positive. For example (-4 – 9=-13) and (9 – -4=13).