How do you order the following from least to greatest #-11/5, -pi, -2.98, -sqrt7#?
First, let's convert each term into it's decimal equivalent:
We can now order these from least to greates:
The numbers are all in different formats. A nifty way of doing this without a calculator is to square the numbers which will get rid of the square root.
Change format and use rounded values
From this it is possible to arrange the original numbers in ascending order.
We do not need to know the exact values of
One is slightly less than -3 and the other slightly bigger.
Knowing this is enough to be able to rank them.