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