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