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