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