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