If this is the game -- then I disagree with your answer.
http://books.google.com/books?id=4fzeFw6Y5uYC&pg=PA77&lpg=PA77&dq=game+called+%22What%27s+Missing&source=bl&ots=IrgvxjuLo3&sig=8-b9a_zvg6mFkJ6ZqQb6aMuxVNE&hl=en&sa=X&ei=o1rSVMHaKMilyAS4r4K4DA&ved=0CD0Q6AEwBQ#v=onepage&q=game%20called%20%22What's%20Missing&f=false
Which of the following activities is not designed for teaching parts and wholes?
A. Magnetic numerals
B. Dividing groups into smaller groups
C. A lotto game called "What's Missing?"
D. Cutting up a banana
my answer I believe c.
2 answers
Yes, I think the answer is A.