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