Question

Order form least to greatest

Answer 1

We can estimate the first one since it is not a perfect square.

It should be between about 14 to 15 because 14 squared is 196 and 15 squared is 225. So it is 14 something.

Now for the third one, we can change that into 10 since 10 squared is 100.

Now you have 4..., -10, 10, and 11.5

So the order is: -10, radical 220, radical 100, and 11.5