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