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