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