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