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