Performs operations on a number (the input) to produce another number (the output).
A two-dimentional surface on which a coordinate system has been set up. Has a horizontal axis (X) and a vertical axis (Y).
Another name for a coordinate grid.
The very centre of a coordinate grid where the X axis and Y axis intersect.
The numbers in an ordered pair that locate a point on the grid (X, Y).
Another name for coordinates.
Goes across the page. The X axis.
Goes up and down the page. The Y axis.
Property that states that numbers can be added or multiplied in any order without affecting the sum or the product.
Preservation of Equality
When each side of an equation is changed in the same way, the values remain equal.
A letter of the alphabet used to represent a number. Often seen in a T-chart or input/output machine.
Uses the = sumbol to show two things that represent the same amount, for example 5+2=7
A mathematical statement with numbers and operations, for example 3 x 4 - 2