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