Maak de erbijsom en erafsom tot 50
In de mix
|
1.
7 – 0 =
1
7
|
2.
24 – 4 =
2
20
|
3.
26 + 13 =
2
39
|
4.
1 – 1 =
2
0
|
|
5.
9 + 2 =
1
11
|
6.
39 – 9 =
2
30
|
7.
7 – 5 =
1
2
|
8.
48 + 1 =
2
49
|
|
9.
35 – 5 =
2
30
|
10.
29 – 1 =
2
28
|
11.
7 – 1 =
1
6
|
12.
15 + 30 =
2
45
|
|
13.
20 – 11 =
9
1
|
14.
28 + 16 =
2
44
|
15.
45 – 35 =
1
10
|
16.
28 + 12 =
40
2
|
|
17.
46 – 31 =
1
15
|
18.
6 – 4 =
2
1
|
19.
2 – 1 =
2
1
|
20.
13 – 12 =
1
2
|