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