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