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