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