Algebra integers are whole numbers that cannot be presented with decimals as they come with no fractions. Integers can either have positive or negative values. Integers are positive if their values are higher than zero. Conversely, integers whose values are less than zero are called negative integers. In this case, zero is neither negative nor positive. It is necessary to know how to work with both negative and positive numbers because you’ll deal with them in the real life. When you prepare food recipe, work with scale, or do other calculation, it is likely that you will use integers. That is why you should know the basic rules of Algebra integers.
There are at least four rules of Algebra integers that you should be skillful at. The easiest and the most commonly used one is probably addition. It is often considered as the simplest calculation that most people deal with in their daily lives. Most people do not have difficulty in adding two positive integers or adding two negative integers. If both of the numbers are positive, the result is positive. Similarly of both numbers are negative, the result is negative. For example 9 + 1 equals 10. Meanwhile (-9) + (-1) equals -10. It is very simple, right? What happen if you add a positive integer to negative integer? What you need to do is just to subtract the smaller number from the bigger one.
The second rule is about the subtraction. The rules for subtraction is actually almost the same as addition. If both are the numbers are positive integers, just subtract the smaller number from the bigger one. Remember that the calculation always results in a positive integer. The other two algebra integers rule deal with multiplication and division. Generally of you already master the rules of addition and subtraction, it is a piece of cake to learn the two other rules.