Maak de som uit de tafel van 11 kloppend
Tafels
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3
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2.
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3.
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10
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11
3
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9
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9
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11
4
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8.
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11
1
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9.
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11
9
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10.
×
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11
8
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11.
×
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11
2
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11
10
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×
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11
10
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11
10
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11
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×
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11
4
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11
3
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18.
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11
2
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×
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11
7
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20.
×
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11
3
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21.
×
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11
3
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22.
×
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11
4
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23.
×
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11
3
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24.
×
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11
8
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