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