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