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