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Fast Math - Double That Number! in 30 Seconds

In just 30 seconds, can you double all of these numbers?
This quiz changes every time you play!
Quiz by
Stewart
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Last updated: November 27, 2019
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First submittedApril 17, 2018
Times taken19,914
Average score43.8%
Rating4.20
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0:30
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 Number 
Double
590
1180
126
252
768
1536
813
1626
 Number 
Double
573
1146
294
588
63
126
137
274
 Number 
Double
797
1594
211
422
311
622
627
1254
 Number 
Double
931
1862
943
1886
932
1864
961
1922
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1 Comments
+1
Level 20
Jun 29, 2025
You scored 16/16 = 100%

3% of test takers also scored 100%

The average score is 7

Your high score is 16

Your fastest time is 0:24

:D