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