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