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