You can think of absolute value as a way to always make a number positive, no matter if it is positive or negative. The absolute value of a number is the distance from that number to zero, no matter which direction you are from zero.
How to add decimal numbers? The sum of numbers is when you add them together, a way to find out how many things you have in total. Adding decimal numbers is just like adding whole numbers, but with a little extra attention to the decimal point.
Adding fractions is a way to find the total amount when you have two or more parts. To add fractions, you need to make sure that the denominators (bottom numbers) are the same. If they are not the same, you can find a common denominator by multiplying the numerators and denominators by the same number. Adding fractions is an important part of mathematics, and it is used in many different ways to find totals and solve problems