What is the whole number?

The term "integer" is usually used in mathematics. It is often defined by what does not contain: it cannot be a fraction of a number, percentage or have a decimal number. While the number like 21.32 has an integer 21, this number is not a "whole" because it contains a decimal number of 0.32. Integers are also often defined as negative integers, including zero.

Purpose to identify different types of numbers

While for some definitions of the whole number it may seem unnecessary, children can make it easier for children to understand the characteristics of integers. Over numbers and integers are not the same, but all integers are integers. The difference is that integers include negative numbers, while all integers are non -negative. Zero is neither positive nor negative. The census feature suggests that any integer to zero equals this number, for example 0 + 23 = 23. which means 3 x 4 = 4 x 3 and 3 +4 = 4 + 3. These are important concepts that can facilitate further mathematical procedures.

different types of numbers

related to integers are "natural numbers", sometimes referred to as "counts numbers". These are usually the first numbers that children learn. Natural numbers may include zero, although it counts the numbers usually not; Zero is not included as the number of counting because it has no value and therefore it cannot actually be calculated. The integer, the natural number and sequences of counting would be something like {1, 2, 3, 4, ...}, while integers would also include 0.

Importance of integers

The integers depend when teachers ask students to round the responses and for some practical applications. At a certain point in people's life, they usually need to think of simple mathematics in their heads. For example, someone who considers the price of $ 29.95 USD (USD) for lunch at restaurantUraci, maybe he will have to figure out how to lean. While some guests might want to lean on the exact penny, others only round or down to the nearest whole number to determine the tip. Dinner can orbit $ 29.95 USD up to $ 30 to determine a simpler value for the tip.

Even organizations such as the Internal Revenue Service (IRS) in the USA prefer to work with integers instead of decimal values. People can usually usually round up or down when determining deducts, income and other values ​​when submitting tax information with IRS. Some people rounded only when it comes to paying from the IRS, and in estimating their total taxable income they round up to an integer and in any case ensure the most advantageous number.

People often laughs when using a seemingly nonsensical decimal number in statistical reports, such as the idea of ​​an average family with 2.5 children. Converting this type of value to an integer because there is nothing like a 0.5 child isThese statistics more useful. It is more meaningful to consider that "the average family has two to three children" than the impossible decimal decimal substances.