Hröð stærðfræði - tvöfalda þá tölu!

Getur þú tvöfaldað allar þessar tölur innan tímamarka? Prófaðu andlega stærðfræðikunnáttu þína!

Þessi spurningakeppni breytist í hvert skipti sem þú spilar!

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This quiz is in Icelandic

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Last updated: September 17, 2023

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First submitted	September 17, 2023
Times taken	0
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Keep scrolling down for answers and more stats ...

númer	tvöfalt
356	712
131	262
316	632
506	1012
360	720

númer	tvöfalt
974	1948
748	1496
592	1184
396	792
758	1516

númer	tvöfalt
616	1232
685	1370
965	1930
227	454
879	1758

númer	tvöfalt
318	636
286	572
207	414
268	536
141	282

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