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