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