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