Maak de erbijsom en erafsom tot 50
In de mix
|
1.
34 + 5 =
2
39
|
2.
40 – 39 =
2
1
|
3.
33 – 32 =
2
1
|
4.
20 + 7 =
27
2
|
|
5.
1 – 0 =
1
2
|
6.
36 – 24 =
1
12
|
7.
24 – 9 =
1
15
|
8.
9 + 38 =
2
47
|
|
9.
31 – 3 =
28
2
|
10.
18 + 29 =
2
47
|
11.
47 + 1 =
48
2
|
12.
3 – 1 =
2
1
|
|
13.
41 – 27 =
14
1
|
14.
42 – 12 =
30
2
|
15.
18 + 6 =
2
24
|
16.
21 + 1 =
2
22
|
|
17.
45 + 2 =
2
47
|
18.
9 – 9 =
2
0
|
19.
7 – 1 =
1
6
|
20.
15 – 2 =
13
1
|