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