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43 votes
43 votes
Suppose that Andrea told you that “Blake and I started out with the same number of marbles, but I gave him one of mine. Now Blake has one more marble than me.” Is Andrea’s reasoning incorrect? If so, how can you help Andrea identify her misunderstanding?

User Leyu
by
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1 Answer

22 votes
22 votes
Answer - Andrea is NOT correct.

I can explain it best by suggesting both Andrea and Blake start with 10 marbles.

If Andrea gave one (1) marble to Blake, Andrea now has 9 and Blake has 11.
User Austyns
by
3.1k points
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