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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 taken3,496
Average score20.0%
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Number
Double
741
1482
514
1028
642
1284
485
970
428
856
Number
Double
12
24
58
116
281
562
118
236
22
44
Number
Double
658
1316
877
1754
181
362
81
162
890
1780
Number
Double
798
1596
728
1456
556
1112
102
204
348
696
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