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