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Fast Math - Double That Number! (Typing Based)

Can you double all these numbers within the time limit? Test your mental math skills! This time around you have to type in all of it in 15 seconds. Basically impossible.
This quiz changes every time you play!
Quiz by FootballGeoGuy
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Last updated: April 28, 2019
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First submittedApril 28, 2019
Times taken3,503
Average score20.0%
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Keep scrolling down for answers and more stats ...
Number
Double
56
112
870
1740
86
172
991
1982
323
646
Number
Double
67
134
223
446
357
714
57
114
976
1952
Number
Double
509
1018
287
574
43
86
174
348
576
1152
Number
Double
401
802
655
1310
755
1510
659
1318
629
1258
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