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