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