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