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