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