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