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