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