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