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