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