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