PositiveAny number to the right of zero on a number line; can be integer or non-integer.
NegativeAny number to the left of zero on a number line; can be integer or non-integer.
Note:
The number zero is neither positive nor negative.
Absolute ValueThe distance from zero on the number line. A positive number is already in the same form as that number’s absolute value. Remove the negative sign from a negative number in order to get that number’s absolute value.
Double ValueThis occurs when a subtraction sign is in front of a negative number. The two negatives turn into one positive sign. 18 – (4 – 9) = 18 – (-5) = 18 + 5 = 23.
Arithmetic Rules
| Multiplication |
Division |
| Function |
Result |
Function |
Result |
| positive * positive |
positive |
positive / positive |
positive |
| positive * negative |
negative |
positive / negative |
negative |
| negative * negative |
positive |
negative / negative |
positive |
