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