Steve recorded these amounts in his checkbook -6.50, 7.00, -6.75 and 7.25 order these animals from least to greatest

-6.75, -6.50, 7.00, 7.25

Least: -6.75
-6.50
7.00
Greatest: 7.25

- integers are the smallest, because they're before zero.
7.25 would be the Largest because it's 7.25 after 0

-3  -2  -1  0 1 2 3
Smallest     Largest

Hope this helped clear things up. 
Remember in my example -3 is smaller than -2 because it's a deficit (Negative) not a +