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