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