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