## Positive and Negative Numbers

Numbers Can be Positive or Negative – Negative sign + Positive sign No Sign Means Positive If a number has no sign it usually means that it is a positive number. Adding a Positive Number Adding positive numbers is just simple addition. Subtracting A Positive Number Subtracting positive numbers is just simple subtraction. Adding A … Continue reading "Positive and Negative Numbers"

## Irrational Numbers

Irrational means not Rational An Irrational Number is a real number that cannot be written as a simple fraction.   Example Rational Number 0.5 = ½ Irrational Number √2 = 1.414213562373095… = ?/? Rational Numbers A Rational Number can be written as a Ratio of 2 integers (ie a simple fraction). Irrational Numbers The numbers that … Continue reading "Irrational Numbers"

## Geometric Sequences and Sums

Sequence A Sequence is a set of things (usually numbers) that are in order. 2, 4, 6, 8, … Geometric Sequences In a Geometric Sequence, each term is found by multiplying the previous term by a constant. This sequence has a factor of 3 between each number. Each term (except the first term) is found … Continue reading "Geometric Sequences and Sums"