# 1 3 real numbers and the number line answer key

- Number Systems: Naturals, Integers, Rationals, Irrationals, Reals, and Beyond
- Real Numbers
- Worksheet on Representation of Rational Numbers on the Number Line
- Number line

## Number Systems: Naturals, Integers, Rationals, Irrationals, Reals, and Beyond

Rational Numbers on a Number Line - Part 2

andEvery point of a number line is assumed to correspond to a real number , and every real number to a point. The integers are often shown as specially-marked points evenly spaced on the line. It is often used as an aid in teaching simple addition and subtraction , especially involving negative numbers. In advanced mathematics, the expressions real number line , or real line are typically used to indicate the above-mentioned concept that every point on a straight line corresponds to a single real number, and vice versa. A number line is usually represented as being horizontal , but in a Cartesian coordinate plane the vertical axis y-axis is also a number line. Another convention uses only one arrowhead which indicates the direction in which numbers grow. If a particular number is farther to the right on the number line than is another number, then the first number is greater than the second equivalently, the second is less than the first.

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For details on it including licensing , click here. This book is licensed under a Creative Commons by-nc-sa 3. See the license for more details, but that basically means you can share this book as long as you credit the author but see below , don't make money from it, and do make it available to everyone else under the same terms. This content was accessible as of December 29, , and it was downloaded then by Andy Schmitz in an effort to preserve the availability of this book. Normally, the author and publisher would be credited here.

The natural or counting numbers are 1 , 2 , 3 , 4 , 5 , etc. There are infinitely many natural numbers. The whole numbers are the natural numbers together with 0. This is not true for subtraction and division, though. The integers are the set of real numbers consisting of the natural numbers, their additive inverses and zero. The set of integers is sometimes written J or Z for short.

## Real Numbers

## Worksheet on Representation of Rational Numbers on the Number Line

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1-3 Real Numbers and the Number Line

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Real Numbers and the Number Line I Can: classify, graph, and Focus Question Answer• What is the difference between finding the.

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Why are they called "Real" Numbers?

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