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