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