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