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