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This Lesson (WHAT IS a number line) was created by by ichudov(404)   About ichudov: I am not a paid tutor, I am the owner of this web site.
Those who are great at mathematics are able to solve math problems by visualizing them. Number line helps to visualize the order of numbers.
A smaller number would show to the LEFT of the larger number. Example: Here, the number 4.5 is shown to the LEFT of 7.2. And, obviously, 4.5 is less than 7.2. A number line is normally drawn as a "long arrow", with integer numbers marked on it for reference. Negative numbers are to the left of zero, and positive numbers are to the right of zero. The distance from a smaller number to the greater number is the difference between the greater and the smaller number. A number line is especially useful for learning to compare negative or positive numbers. A rule to remember is this: If a number is to the left of another, it is smaller. if a number is to the right of another, it is greater. As you move from left to right, the numbers get largerSee this animation: As you move from right to left, the numbers get smallerSee this animation: This lesson has been accessed 4114 times. |
