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