Positive Numbers (n): are numbers greater than zero;
Negative Numbers (n): are numbers less than zero;
Math Symbols:
Read As Extended definition
n > 0; n is greater than zero Greater than (>): the open end contains the greater number
sign (+) positive or plus Give value to a number or describes an mathematical operation
n < 0; n is less than zero Less than (<): the closed end contains the lesser number
sign (-) negative or minus Give value to a number or describes an mathematical operation
-8 0 8
1. On the number line numbers get larger to as we move from Left to Right.
2. Numbers that appear to the Right of a given number are Greater Than (>) the given number.
3. Numbers that appear to the Left of a given number are Less Than (<) the given number.
Integers are –4, -3, -2, -1, 0, 1, 2, 3, 4
Zero is not negative or positive. Zero is the origin on the number line.
Example:
1a. On the number line what number is 5 units to the right of negative (-2)
-4 -3 -2 -1 0 1 2 3 4
5 spaces
Solution:
3 is 5 units to the right of (-2)
-_-
