Question

What is this from least to greatest
-8.2,0.4,-2 1/2,2.4
I got 0.4,-2 1/2,2.4.-8.2

Answer 1

look at a number line.
The number farthest to the left is the smallest, so

-8.2 <---- smallest
etc

Answer 2

you have (almost) listed them in order of distance from zero, but smallest means farthest to the left.

And even then, 2.4 is closer than 2 1/2