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