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