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