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