Erbij en eraf tot 50
In de mix
|
1.
13 + 2 =
1
15
|
2.
23 + 6 =
29
2
|
3.
27 + 7 =
2
34
|
4.
3 + 45 =
2
48
|
|
5.
13 – 4 =
9
1
|
6.
37 + 10 =
47
2
|
7.
29 – 18 =
1
11
|
8.
15 – 0 =
15
1
|
|
9.
12 – 9 =
3
1
|
10.
17 + 9 =
2
26
|
11.
9 + 11 =
2
20
|
12.
7 + 37 =
44
2
|
|
13.
7 + 13 =
20
2
|
14.
40 + 2 =
2
42
|
15.
37 – 10 =
2
27
|
16.
24 + 15 =
2
39
|
|
17.
26 + 18 =
2
44
|
18.
27 + 5 =
32
2
|
19.
44 + 4 =
2
48
|
20.
9 – 9 =
0
2
|