Learning Numbers From 01 to 20 .

Here is a Counting from one to twenty with numbers.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

Counting to twenty with words.

**one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty**

Learning Numbers From 01 to 20 – Fun Learning Collection

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. A written symbol like “5” that represents a number is called a numeral. A numeral system is an organized way to write and manipulate this type of symbol, for example the Hindu–Arabic numeral system allows combinations of numerical digits like “5” and “0” to represent larger numbers like 50. A numeral in linguistics can refer to a symbol like 5, the words or phrase that names a number, like “five hundred”, or other words that mean a specific number, like “dozen”. In addition to their use in counting and measuring, numerals are often used for labels (as with telephone numbers), for ordering (as with serial numbers), and for codes (as with ISBNs). In common usage, number may refer to a symbol, a word or phrase, or the mathematical object.

**Counting numbers** are the set of **numbers** that we use to learn how to **count**. 1, 2, 3, 4, 5, and so on. They are also called natural **numbers**—maybe since they feel natural to us because they are naturally the first **numbers** we learn. Sometimes they are also referred to as positive integers.

**Zero** does not have a positive or negative value. However, **zero** is considered a whole **number**, which in turn makes it an integer, but not necessarily a natural **number**. … They have to be positive, whole **numbers**. **Zero** is not positive or negative

They are the **numbers** you usually count and they will continue on into infinity. **Whole numbers** are all natural **numbers** including 0 e.g. 0, 1, 2, 3, 4… **Integers** include all **whole numbers** and their negative counterpart e.g. …-4, -3, -2, -1, 0,1, 2, 3, 4,… is a rational **number** but not an **integer**.

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