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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!
Enskur rithöfundur: Quizmaster
This quiz is in Icelandic
Quiz by OnBin
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Last updated: September 17, 2023
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First submittedSeptember 17, 2023
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númer
tvöfalt
626
1252
8
16
946
1892
167
334
702
1404
númer
tvöfalt
281
562
34
68
495
990
158
316
663
1326
númer
tvöfalt
542
1084
710
1420
241
482
113
226
218
436
númer
tvöfalt
538
1076
981
1962
331
662
933
1866
606
1212
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