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