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