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