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Doubling mutiples of 50
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%
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Double 250
500
Oops!
Okay!
Double ? = 500
250
Oops!
Okay!
Double 350
700
Oops!
Okay!
Double 650
1300
Oops!
Okay!
Double ? = 900
450
Oops!
Okay!
Double 750
1500
Oops!
Okay!
Double ? = 300
150
Oops!
Okay!
Double ? = 700
350
Oops!
Okay!
Double 150
300
Oops!
Okay!
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