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