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