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