Understanding Integers and Basic Rules
Integers are simply whole numbers that can be positive or negative - no fractions or decimals involved. Think of them as the numbers you'd find on a number line stretching in both directions from zero.
The key to mastering integer calculations is memorising a few simple rules. For addition, remember that adding a negative is the same as subtracting: positive + positive stays positive, but mixing signs gives you the sign of the larger number.
Subtraction has a neat trick - subtracting a negative actually makes it positive! So negative - negative becomes positive. For multiplication and division, the rule is simple: same signs give positive results, different signs give negative results.
Top Tip: When you see two negative signs together , they always become positive. It's like a double negative in English!
