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