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