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