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