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