1 P3.PA.JM.17110103
Level 3
Melvin saved $3 in the first week and increased his savings by $4 each week. How much would he have saved at the end of 11 weeks?
4 m
Systematic listing Rainbow method Money W 4 operations
2 P4.PA.JM.17092433
Level 3
What is 3 + 4 + 5 + 6 + ... + 47 + 48?
4 m
Rainbow method Sum of consecutive W 4 operations

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