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