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