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