Maak de erbijsom tot 20
Erbijsommen
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1.
3 + 7 =
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2.
11 + 3 =
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3.
11 + 7 =
|
|
4.
12 + 5 =
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5.
4 + 7 =
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6.
1 + 14 =
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7.
7 + 4 =
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8.
18 + 2 =
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9.
18 + 1 =
|
|
10.
14 + 4 =
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11.
15 + 5 =
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12.
14 + 4 =
|
|
13.
13 + 5 =
|
14.
9 + 7 =
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15.
1 + 15 =
|
|
16.
5 + 8 =
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17.
14 + 3 =
|
18.
5 + 2 =
|
|
19.
19 + 0 =
|
20.
20 + 0 =
|
21.
12 + 7 =
|
|
22.
4 + 4 =
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23.
2 + 0 =
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24.
13 + 0 =
|
|
25.
19 + 0 =
|
26.
10 + 10 =
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27.
15 + 1 =
|
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28.
15 + 3 =
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29.
12 + 2 =
|
30.
8 + 5 =
|
|
31.
13 + 7 =
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32.
16 + 4 =
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33.
18 + 1 =
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