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