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