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