Question 1
What invented strategy is represented by a student multiplying 58 × 6 by adding 58 + 58 to get 116 and then adding another 116 to get 232 and then adding another 116 to find the product of 348.
◦ Partitioning.
◦ Clusters.
◦ Complete number.
◦ Compensation.
Question 2
What is the purpose of using a side bar chart in multidigit division?
◦ Easier to come up with the actual answer.
◦ Uses a doubling strategy for considering the reasonableness of an answer.
◦ Increases the mental computation needed to find the answer.
◦ Uses the explicit trade notation.