Question
Riordan has 310 stamps. Irene has 18 more stamps than Riordan. Michael has 30 more stamps than Irene. How many stamps do Michael and Irene have altogether?
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Riordan has 310 stamps. Irene has 18 more stamps than Riordan. Michael has 30 more stamps than Irene. How many stamps do Michael and Irene have altogether?