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