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
534	1068
752	1504
633	1266
693	1386
17	34

númer	tvöfalt
739	1478
231	462
282	564
593	1186
675	1350

númer	tvöfalt
816	1632
838	1676
586	1172
890	1780
779	1558

númer	tvöfalt
959	1918
796	1592
124	248
565	1130
16	32

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