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