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