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