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