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