## Your Friend - Basic Mathematics

### Graphs

Graphs help us visualize data. What we see on the graph may help us interpret and analyze the data. The result is usually a better perspective that may not have been possible to acquire just by looking at a bunch of numbers.

### Fractions

Fractions are used to indicate the number of parts of a whole to be considered. You can use a fraction to show a ratio. In a ratio, the numerator shows the part of a group you are considering and the denominator shows the rest of the group.

## Learning Math Is Fun!

### Compatible Numbers

Compatible numbers are numbers that look nice or friendly with each other when we do calculations, including addition, subtraction, but especially - division.

### Geometric Sequences

A sequence is a set of numbers that follow a pattern. A geometric sequence is a sequence where each term is found by multiplying or dividing the same value from one term to the next. We call this value "common ratio".

### Arithmetic Sequences

An arithmetic sequence is a sequence where each term is found by adding or subtracting the same value from one term to the next. We call this value "common sum" or "common difference".