What is the difference between the largest and the smallest numbers in the list? 0.6 , –2.3 , 3.1 , 1.7 , –0.9

3.1 - - 2.3 = 3.1+2.3 = 5.4

just like anon said :)

5.4 i think. if you take the smallest number and count up to the largest number it should be 5.4 but you might want to check it for yourself. Hope this helps.