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|Highscores (74 registered players)|
|1||Jonas||100%||0:11.8 min.||4 Mar, '13|
|2||Shadow||100%||0:12.1 min.||2 Mar, '13|
|3||Veejay||100%||0:13.0 min.||1 Apr, '08|
|4||Math Whiz||100%||0:13.5 min.||16 Mar, '19|
|5||MisterSamsonite||100%||0:13.9 min.||1 Sep, '07|
|6||bambix||100%||0:14.0 min.||21 Aug, '07|
|7||Arturo||100%||0:14.5 min.||4 Apr, '08|
|8||Tinus||100%||0:15.0 min.||21 Aug, '07|
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This is an online quiz called Subtraction Clock (N-9)
There is a printable worksheet available for download here so you can take the quiz with pen and paper.
Subtract the number 9 from the numbers on the clockface.
The basic image is made freely available by GTCO Calcomp.
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