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