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