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