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