Oplossen van erafsommen tot 20
Erafsommen
|
1.
17 – 8 =
10
14
9
8
|
2.
7 – 1 =
8
2
11
6
|
3.
12 – 8 =
9
4
7
5
|
4.
3 – 3 =
0
3
2
1
|
|
5.
19 – 14 =
6
1
5
10
|
6.
4 – 4 =
5
0
1
3
|
7.
8 – 5 =
5
2
3
7
|
8.
9 – 6 =
8
6
3
7
|
|
9.
17 – 12 =
1
5
7
10
|
10.
16 – 14 =
3
7
2
4
|
11.
18 – 15 =
4
5
2
3
|
12.
5 – 1 =
9
5
4
7
|
|
13.
20 – 2 =
1
18
13
22
|
14.
11 – 0 =
15
8
12
11
|
15.
14 – 4 =
5
10
13
7
|
16.
5 – 2 =
3
5
4
7
|
|
17.
7 – 0 =
7
6
2
11
|
18.
7 – 2 =
5
6
3
8
|
19.
4 – 3 =
1
6
2
4
|
20.
17 – 15 =
2
4
1
3
|