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