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