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