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