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