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