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