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1. Kathy has 11 marbles. Bill has 14 marbles. Bill lost 2 marbles. Kathy bought 3 more and Bill bought 6 more. Kathy and Bill shared their marbles by dividing the total by 2. How many marbles to they each have now?
2.
a. 15
b. 7 c. 14
d. 18 e. 4
f. 5 g. 25
+ 6 + 9
+10 +12
+8 x 8
-16
3. The Challenge
14 + 18 x 8 x 9 + 10 - 16 
6 + 8 = ?