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