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