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So Many Sums

Stage: 3 Short Challenge Level: Challenge Level:1

In this addition each letter stands for a different digit, with $S$ standing for 3. What is the value of $Y\times O$?
 

    S O  
M A N Y +
-- -- -- -- --
S U M S  

 

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

 

 



 

This problem is taken from the UKMT Mathematical Challenges.

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