Jackie walks 2 miles each day while Jessie walks 1.5 miles each day. How many more miles, in all, does Jackie walk than Jessie walk in 6 days?
Jackie walks 2 - 1.5 = 
<gadget id="calculator">2-1.5</gadget>
<output>0.5</output>
0.5 miles more each day than Jessie.
So in 6 days, Jakie walks 0.5 x 6 = 
<gadget id="calculator">0.5*6</gadget>
<output>3</output>
3 miles more than Jessie.

<result>3</result>