Predict: I predict it is going to be about problem solving, addition and subtraction.

Read: A gambler begins with $21. In the first minute he loses $5. In the next minute he wins $3. How long does it take him to lose his $21 if he continues losing and winning in this way.

Clarify: I have nothing to clarify.

Big Question: How long does it take him to lose his $21 if he keeps losing and winning in this way.

Mathematicians Toolbox: Guess, check and improve.

Solve: I started with 211 dollars and took away 5 dollars then added 3 dollars to get 19. then I had 19 and took away 5 dollars and added 3 dollars to get 17 dollars. I then had 17 dollars I then took away 5 dollars and added 3 dollars to get 15 dollars. I then took away 5 dollars and added 3 dollars to get 13 dollars.I then took away 5 dollars and added 3 dollars to get 11 dollars. I then took away 5 and added three to get nine. I then took away 5 and added 3 to get seven. I then took away 5 and added 3 to get 5. I then took away 5 and added 3 to get 3. I then had to go into decimals and to away 5 to get -2 and added 3 to get one so up all together it took the gambler 21 minutes to get rid of his money.

Summary: I was an easy task to complete and I found it hard to write it on my blog!

21 Min