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