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