Math is Fun
An arithmetic sequence is made by adding the same value each time. The value added each time is the common difference.
cardinal, ordinal and nominal number
A cardinal number says how many of something there are. An ordinal number tells the position of something in a list. A nominal number is a number used like a name.
The number of dimensions is how many values are needed to locate points on a shape.
We can measure how long things are, or how tall or how far apart they are.
The meter is the basic measurement of length in the metric system.
How far is it across this patch of grass?
Number, Numeral and Digit
A number is account or measurement. It is really an idea in our minds. A numeral is a symbol or a name that stands for a number. A digit is a single symbol used to make numerals.
Digits make up numerals and numerals stand for an idea of a number just ...
Prime and Composite Number
○ It is a prime number when it can't be divided evenly by any number except 1 or itself.
○ prime, composite, whole, factor, fraction
The Romans showed numbers into the thousands using these 7 symbols: I for 1, V for 5, X for 10, L for 50, C for 100, D for 500 and M for 1000.