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