Reken de erafsommen tot 10 uit
Erafsommen
|
1.
8 – 1 =
9
7
|
2.
9 – 1 =
8
6
|
3.
1 – 1 =
0
3
|
4.
4 – 3 =
1
5
|
|
5.
7 – 4 =
3
5
|
6.
1 – 0 =
1
6
|
7.
8 – 3 =
8
5
|
8.
10 – 2 =
10
8
|
|
9.
8 – 7 =
4
1
|
10.
5 – 5 =
3
0
|
11.
7 – 1 =
11
6
|
12.
10 – 7 =
3
6
|
|
13.
3 – 0 =
3
1
|
14.
9 – 1 =
8
4
|
15.
10 – 10 =
0
3
|
16.
5 – 3 =
7
2
|
|
17.
7 – 3 =
4
9
|
18.
4 – 1 =
3
5
|
19.
2 – 1 =
1
3
|
20.
7 – 5 =
6
2
|