Predict: I predict this is going to be about problem solving using letters.

Question: In the addition problem shown, the letters A,B and C stand for different digits. If D= 6 what number does A,B and C stand for.

Big Question: What digits are the letters?

Strategies: Guess, check and improve.

Question: A B C + A B C = C D D

Solving: First I read the question out loud to my self to get a good understanding of the question.

Then I started to guess on what C could be. I made C 3 and added them to get 6 so I thought that will be right. Then I started to think what B would be. I tried 2 but 2 doubled would be 4. Then I asked for help and my dad suggested 8 and checked it but I thought that it wasn’t right. So 8 + 8 is 16 then I realized that to take 1 and put it on top of the A witch would make 3.

Answer: A =1, B =8 and C =3