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