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