Zander collected 100 stickers. He gave some of his stickers to his two friends, Andrew and Bill. Andrew received 1/5 of Zander's stickers, while Bill received 3/10 of the remaining stickers. How many stickers did Andrew give to his two friends?
Andrew received 100 x 1/5 = 
<gadget id="calculator">100*1/5</gadget>
<output>20</output>
20 stickers.
So, there were 100 - 20 = 
<gadget id="calculator">100-20</gadget>
<output>80</output>
80 stickers left.
Bill received 80 x 3/10 = 
<gadget id="calculator">80*3/10</gadget>
<output>24</output>
24 stickers.
Therefore, Andrew gave away 20 + 24 = 
<gadget id="calculator">20+24</gadget>
<output>44</output>
44 stickers.

<result>44</result>