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