U. Another 200 Chart Puzzle 
Fill in the missing numbers on this part of the 200 Chart.
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- Show or tell how to use the 200 Chart to solve the following problem.
99 + 31 =
Lesson 6
Two Paper-and-Pencil Methods
Est. Class Sessions: 2Daily Practice and Problems
Teacher Notes
X
Challenge students to first try to solve the puzzle without using A 200 Chart. Then they use their charts to check their solutions.
- 99 + 31 = 130; Responses will vary. One possible response: I counted from 99 and moved down 3 rows of 10 to 129; plus 1 more is 130.