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