Maak de som uit de tafel van 7 kloppend
Tafels
1.
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7
7
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2.
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7
8
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3.
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7
3
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4.
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7
6
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5.
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7
5
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6.
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7
8
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7.
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7
10
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8.
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7
3
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9.
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7
5
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10.
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7
8
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11.
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7
6
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7
6
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13.
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7
1
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14.
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7
5
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7
5
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7
4
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17.
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7
1
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18.
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7
6
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19.
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7
10
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20.
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7
6
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21.
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7
7
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22.
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7
1
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23.
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7
7
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24.
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7
1
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