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