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