Maak de som uit de tafel van 15 kloppend
Tafels
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15
10
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15
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15
10
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15
10
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15
2
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15
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15
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15
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15
5
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15
5
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15
5
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15
7
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15
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15
8
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15
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15
7
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15
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15
10
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15
8
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15
3
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15
5
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22.
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15
1
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23.
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15
6
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24.
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15
7
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