Play Video
1
How To Read Number Lines.mov
How To Read Number Lines.mov
::2012/08/30::
Play Video
2
Counting 1 - 10 on the Number Line With Froggy
Counting 1 - 10 on the Number Line With Froggy
::2011/10/03::
Play Video
3
Placing Numbers on a Number Line
Placing Numbers on a Number Line
::2010/09/02::
Play Video
4
Pre-Algebra 4 - Whole Numbers, Integers, and the Number Line
Pre-Algebra 4 - Whole Numbers, Integers, and the Number Line
::2011/07/29::
Play Video
5
Number Line Song!
Number Line Song!
::2013/12/13::
Play Video
6
number line addition by Peter Weatherall
number line addition by Peter Weatherall
::2008/11/13::
Play Video
7
Comparing fractions visually and on number line
Comparing fractions visually and on number line
::2013/10/07::
Play Video
8
Fractions on a number line
Fractions on a number line
::2013/10/07::
Play Video
9
How to Read a Number Line
How to Read a Number Line
::2011/12/27::
Play Video
10
The Rappin
The Rappin' Mathematician: "The Number Line Dance"
::2009/02/02::
Play Video
11
Graphing Inequalities on a Number Line
Graphing Inequalities on a Number Line
::2008/03/15::
Play Video
12
5th Grade Module 1 C   Rounding on Vertical Number Line
5th Grade Module 1 C Rounding on Vertical Number Line
::2014/07/21::
Play Video
13
Number Line - Numberphile
Number Line - Numberphile
::2013/07/30::
Play Video
14
Very Basics of Graphing Inequalities (on a number line)
Very Basics of Graphing Inequalities (on a number line)
::2013/05/31::
Play Video
15
Number line subtraction by Peter Weatherall
Number line subtraction by Peter Weatherall
::2008/11/13::
Play Video
16
Number Line
Number Line
::2011/11/01::
Play Video
17
Phish | 08.17.10 | Backwards Down the Number Line | Jones Beach Theater - Wantagh, NY
Phish | 08.17.10 | Backwards Down the Number Line | Jones Beach Theater - Wantagh, NY
::2010/08/19::
Play Video
18
Plotting basic fractions on the number line
Plotting basic fractions on the number line
::2013/08/02::
Play Video
19
Phish - Backwards Down the Number Line 8-31-13 Commerce City, CO live
Phish - Backwards Down the Number Line 8-31-13 Commerce City, CO live
::2013/09/01::
Play Video
20
Points on a number line
Points on a number line
::2011/01/19::
Play Video
21
Rounding Numbers using a Number Line
Rounding Numbers using a Number Line
::2013/08/01::
Play Video
22
class 9 - math
class 9 - math's -- √5 on number line - lakshya education - math's guru no.1
::2013/03/22::
Play Video
23
Number line number Rap ( He Snapped ) # freestyle
Number line number Rap ( He Snapped ) # freestyle
::2013/12/15::
Play Video
24
Basic Math : How to Draw a Number Line
Basic Math : How to Draw a Number Line
::2011/03/12::
Play Video
25
Locating decimals on number line
Locating decimals on number line
::2011/02/26::
Play Video
26
Fractions and Mixed Numbers on a Number Line
Fractions and Mixed Numbers on a Number Line
::2012/07/20::
Play Video
27
Numberline (little extra bit)
Numberline (little extra bit)
::2013/08/19::
Play Video
28
Division on a number line
Division on a number line
::2009/07/04::
Play Video
29
Phish - Backwards Down The Number Line
Phish - Backwards Down The Number Line
::2010/06/20::
Play Video
30
Open Number Line Basics
Open Number Line Basics
::2010/09/19::
Play Video
31
Equivalent fractions visually and on number line
Equivalent fractions visually and on number line
::2013/10/07::
Play Video
32
Elapsed Time Number-Line
Elapsed Time Number-Line
::2013/01/11::
Play Video
33
Rounding with a Vertical Number Line - Engage NY Math - Common Core
Rounding with a Vertical Number Line - Engage NY Math - Common Core
::2013/09/21::
Play Video
34
Rational number on a number line
Rational number on a number line
::2011/06/01::
Play Video
35
Plotting inequalities on a number line
Plotting inequalities on a number line
::2013/07/16::
Play Video
36
Using Double Number Line Diagrams
Using Double Number Line Diagrams
::2012/12/18::
Play Video
37
2.MD.6 - Addition Using the Number Line (Part 1 of 2)
2.MD.6 - Addition Using the Number Line (Part 1 of 2)
::2012/02/07::
Play Video
38
Representing Irrational numbers (√2, √3) on the number-line (Part-3)
Representing Irrational numbers (√2, √3) on the number-line (Part-3)
::2012/04/23::
Play Video
39
Learn Multiplication Facts using Number Line
Learn Multiplication Facts using Number Line
::2011/10/21::
Play Video
40
Plotting Irrational Numbers on a Number Line
Plotting Irrational Numbers on a Number Line
::2014/04/17::
Play Video
41
Inequalities on a number line
Inequalities on a number line
::2011/01/25::
Play Video
42
Place fractions on a number line (1) - 3.NF.2
Place fractions on a number line (1) - 3.NF.2
::2011/11/22::
Play Video
43
Adding Integers Using a Number Line
Adding Integers Using a Number Line
::2010/11/05::
Play Video
44
Real numbers and the number line - N3
Real numbers and the number line - N3
::2010/08/06::
Play Video
45
Fractions on a Number Line
Fractions on a Number Line
::2010/12/26::
Play Video
46
Algebra 6 - Interval Notation and the Number Line
Algebra 6 - Interval Notation and the Number Line
::2012/06/29::
Play Video
47
Subtraction - Part 1 - Counting Back Using A Number Line
Subtraction - Part 1 - Counting Back Using A Number Line
::2012/05/20::
Play Video
48
Counting 10 - 20 on the Number Line with Froggy
Counting 10 - 20 on the Number Line with Froggy
::2011/10/03::
Play Video
49
Phish | 12.31.10 | Backwards Down the Number Line
Phish | 12.31.10 | Backwards Down the Number Line
::2011/01/02::
Play Video
50
Decimals on a Number Line
Decimals on a Number Line
::2011/07/18::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the mathematical concept. For the printer's key, see Printer's key.
This article covers basic topics. For advanced topics, see Real line.

In basic mathematics, a number line is a picture of a straight line on which every point is assumed to correspond to a real number and every real number to a point.[1] Often the integers are shown as specially-marked points evenly spaced on the line. Although this image only shows the integers from −9 to 9, the line includes all real numbers, continuing forever in each direction, and also numbers not marked that are between the integers. It is often used as an aid in teaching simple addition and subtraction, especially involving negative numbers.

The number line

It is divided into two symmetric halves by the origin, that is the number zero.

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.

Drawing the number line[edit]

The number line is usually represented as being horizontal. Positive numbers always lie on the right side of zero, and negative numbers always lie on the left side of zero. An arrowhead on either end of the drawing is meant to suggest that the line continues indefinitely in the positive and negative real numbers, denoted by \mathbb{R}. The real numbers consist of irrational numbers and rational numbers, as well as the integers, whole numbers, and the natural numbers (the counting numbers).

A line drawn through the origin at right angles to the real number line can be used to represent the imaginary numbers. This line, called imaginary line, extends the number line to a complex number plane, with points representing complex numbers.

See also[edit]

References[edit]

  1. ^ Stewart, James B.; Redlin, Lothar; Watson, Saleem (2008). College Algebra (5th ed.). Brooks Cole. pp. 13–19. ISBN 0-495-56521-0. 
Wikipedia content is licensed under the GFDL License
Powered by YouTube
LEGAL
  • Mashpedia © 2014