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