its a shape
it mean have to divide it i think
A multiple in a nmber
i don't have a clue
The word "quad" mean four (4).
a square that is a solid 3D figure
Nothing, since decompisition is not a real word! What decomposition means depends on the context, which you have not provided: "maths" is not enough.
close to the actual, but not completely accurate or exact
The word 'plus' implies the process of addition.
one thousand or one thousandth
Maths (mathematics) is matamaitic.
maths/mathematics = mathématiques