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