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