Erbij en eraf tot 50
In de mix
|
1.
33 – 30 =
3
1
|
2.
42 – 3 =
39
2
|
3.
33 + 0 =
2
33
|
4.
18 – 15 =
3
1
|
|
5.
11 – 0 =
1
11
|
6.
2 + 41 =
43
2
|
7.
31 – 3 =
2
28
|
8.
31 – 18 =
1
13
|
|
9.
15 – 13 =
1
2
|
10.
44 – 15 =
2
29
|
11.
39 – 38 =
1
2
|
12.
14 + 31 =
2
45
|
|
13.
4 – 2 =
2
1
|
14.
20 – 17 =
1
3
|
15.
40 + 6 =
46
2
|
16.
35 + 2 =
37
2
|
|
17.
36 – 36 =
0
2
|
18.
13 – 1 =
1
12
|
19.
16 + 32 =
48
2
|
20.
43 + 5 =
2
48
|