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