Los de erbijsom en erafsom tot 20 op
In de mix
|
1.
8 – 6 =
4
1
3
2
|
2.
18 – 17 =
3
1
2
4
|
3.
5 + 12 =
4
3
2
17
|
4.
8 + 4 =
2
3
12
1
|
|
5.
9 + 11 =
3
2
20
4
|
6.
18 – 11 =
1
2
7
3
|
7.
13 – 5 =
1
3
8
2
|
8.
14 + 6 =
20
4
2
3
|
|
9.
16 + 2 =
4
18
3
2
|
10.
20 + 0 =
2
4
3
20
|
11.
14 – 6 =
3
1
8
2
|
12.
13 – 10 =
1
4
3
2
|
|
13.
4 + 9 =
2
1
3
13
|
14.
12 + 2 =
3
1
2
14
|
15.
19 + 1 =
2
3
4
20
|
16.
20 – 5 =
1
15
2
3
|
|
17.
7 – 7 =
3
2
0
4
|
18.
20 – 1 =
19
2
4
3
|
19.
2 – 0 =
4
1
2
3
|
20.
19 – 12 =
3
7
1
2
|