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