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