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