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