Oefen de erbijsommen tot 12
Erbijsommen
|
1.
11 + 0 =
10
11
12
7
|
2.
3 + 3 =
3
10
6
4
|
3.
1 + 0 =
6
4
1
5
|
4.
9 + 1 =
8
4
10
11
|
|
5.
10 + 0 =
9
10
4
2
|
6.
3 + 1 =
2
4
6
9
|
7.
11 + 1 =
12
7
14
5
|
8.
12 + 0 =
13
17
12
4
|
|
9.
8 + 2 =
8
10
1
5
|
10.
6 + 6 =
9
12
11
4
|
11.
7 + 0 =
2
8
7
11
|
12.
9 + 1 =
10
7
13
9
|
|
13.
1 + 11 =
10
17
6
12
|
14.
6 + 2 =
13
8
2
10
|
15.
1 + 1 =
7
3
2
4
|
16.
2 + 1 =
6
5
2
3
|
|
17.
2 + 5 =
7
8
10
6
|
18.
5 + 5 =
11
1
10
7
|
19.
8 + 0 =
11
1
8
9
|
20.
4 + 0 =
3
8
1
4
|