When you add a 1-digit number to a 3-digit number, the same rules apply as when you are adding a 1-digit number to a 1 or 2-digit number. Number lines, partitioning, Base 10 and the column method ...
Crochet will wear No. 35 with Boston. The three previous numbers he wore are all retired. Not only did he wear No. 34 (David Ortiz) in college but he also wore No. 14 (Jim Rice) in high school.
When you add a 1-digit number to a 3-digit number, the same rules apply as when you are adding a 1-digit number to a 1 or 2-digit number. Number lines, partitioning, Base 10 and the column method ...
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