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