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