Oplossen van erafsommen tot 20
Erafsommen
|
1.
1 – 0 =
2
1
6
5
|
2.
10 – 5 =
5
2
8
6
|
3.
9 – 2 =
3
8
1
7
|
4.
13 – 11 =
2
1
6
5
|
|
5.
20 – 3 =
10
17
3
21
|
6.
5 – 0 =
7
5
9
2
|
7.
14 – 8 =
11
3
6
10
|
8.
18 – 3 =
20
2
15
5
|
|
9.
8 – 3 =
7
4
5
6
|
10.
8 – 5 =
5
3
7
8
|
11.
18 – 15 =
5
3
2
7
|
12.
6 – 2 =
4
9
6
5
|
|
13.
2 – 2 =
4
1
3
0
|
14.
5 – 0 =
2
10
5
4
|
15.
10 – 3 =
7
3
10
6
|
16.
11 – 2 =
5
9
3
7
|
|
17.
9 – 1 =
3
6
5
8
|
18.
16 – 12 =
5
4
8
9
|
19.
18 – 2 =
16
2
11
20
|
20.
9 – 1 =
12
8
4
2
|