umalee won 40 super bouncy balls playing horseshoes at her school's game night. Later, she gave two to each of her friends. She only has 8 remaining. How many friends does she have?
40=number she began with
8= final number of balls
40-8=number she gave away=32/2(because she gave 2 balls to each friend)=16 (the number of friends she gave balls to