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