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