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