Oefen de erbijsom en erafsom tot 12
In de mix
|
1.
10 – 5 =
1
5
|
2.
11 + 0 =
11
1
|
3.
4 + 7 =
11
1
|
4.
3 – 0 =
3
1
|
|
5.
4 + 0 =
4
1
|
6.
5 + 1 =
6
1
|
7.
11 – 5 =
1
6
|
8.
12 + 0 =
12
1
|
|
9.
8 – 5 =
3
1
|
10.
5 – 0 =
5
1
|
11.
2 – 1 =
1
2
|
12.
5 + 3 =
8
1
|
|
13.
12 – 7 =
5
1
|
14.
6 + 4 =
10
1
|
15.
9 + 1 =
1
10
|
16.
9 – 1 =
8
1
|
|
17.
10 + 0 =
10
1
|
18.
7 + 1 =
8
1
|
19.
10 + 1 =
11
1
|
20.
10 + 0 =
10
1
|