Does doubling a number always make it larger?

This is a math question I have but I don’t know if the question is also including decimals because If it does then the answer would be no

2 answers

If the number is positive, yes, doubling a number makes it larger.
However, if the number is negative, doubling it makes it "smaller".

Think of a number line.
If x is to the right of y on this line, then x is larger than y.
Now pick any positive number, say 3.5
double 3.5 = 2 * 3.5 = 7 and 7 would be to the right of 3.5, thus it is larger.
Now pick -6
2*(-6) = -12 and-12 is to the left of -6, thus it is smaller.
Forgot to mention zero.
Of course zero times any number is still zero, so there is no question about being larger or smaller.