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