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