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