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