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