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