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