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