Erbij en eraf tot 50
In de mix
|
1.
16 – 15 =
2
1
|
2.
49 + 0 =
49
2
|
3.
25 + 14 =
39
2
|
4.
42 – 9 =
2
33
|
|
5.
18 – 10 =
8
1
|
6.
45 + 4 =
2
49
|
7.
41 – 9 =
2
32
|
8.
31 – 6 =
25
2
|
|
9.
1 – 0 =
1
2
|
10.
12 + 22 =
34
2
|
11.
27 – 21 =
1
6
|
12.
36 – 30 =
1
6
|
|
13.
14 – 1 =
1
13
|
14.
30 – 26 =
1
4
|
15.
22 – 12 =
1
10
|
16.
24 – 7 =
2
17
|
|
17.
21 + 28 =
49
2
|
18.
19 + 9 =
28
2
|
19.
19 + 17 =
36
2
|
20.
43 – 23 =
20
2
|