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