George thought of it as 27 + ? = 45. Gloria thought of it as 45 - 27 = ?
Check out the teacher packet for multiple solution paths!
If your answer does not match our answer, did you
- act it out with manipulatives?
- draw a picture and label it?
- talk in your group?
If your answer does match ours, did you
- help anyone in your group?
- talk about what number to write instead of the question mark?