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