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