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