Question 10. Anna, Bonnie, and Charlie have some kangaroo cookies on their plates as shown. They then share the remaining 15 cookies on the tray so that everyone now has the same number of cookies on their plates. How many cookies from the tray does Anna get? To figure this problem out, let's get the total sum of all the cookies on the tray and on the three plates. So there are 15 cookies on the tray, 3 on Anna's plate, 4 on Bonnie's plate, and 5 on Charlie's plate. We take the sum of this and we get a total of 27 cookies. We know that at the end everyone will have the same number, so we take our sum of 27 and divide by 3 since we have 3 people. This gives us 9. Now the question is asking, how many cookies from the tray did Anna get? Since we know that Anna already has 3 on her plate, we will subtract 3. When we do this, we do 9 minus 3 which gives us our solution which will be C, 6.

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