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