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