Maths Dictionary · JSS 1
Variable
Simple meaning
A letter that stands for a number that can change or is unknown.
Example
In y = 2x + 1, x and y are variables.
See it
From the Letters for Numbers lesson. Try moving things around.
Faded tiles are a + and a − of the same kind: together they make 0.
As built: 3x + 2
Collected: 3x + 2
If x = 5: 3x + 2 = 3 × 5 + 2 = 17
Oranges in an x bag5