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