Erbij en eraf tot 50
In de mix
|
1.
2 + 45 =
2
47
|
2.
39 – 29 =
1
10
|
3.
23 – 3 =
2
20
|
4.
28 + 15 =
2
43
|
|
5.
6 + 4 =
1
10
|
6.
26 – 22 =
4
1
|
7.
17 – 13 =
4
1
|
8.
42 – 29 =
13
1
|
|
9.
3 + 0 =
1
3
|
10.
23 – 7 =
16
2
|
11.
5 – 2 =
3
1
|
12.
30 – 16 =
1
14
|
|
13.
31 – 7 =
24
2
|
14.
36 + 12 =
48
2
|
15.
22 – 8 =
14
1
|
16.
36 + 4 =
40
2
|
|
17.
8 – 4 =
4
1
|
18.
1 + 4 =
5
1
|
19.
10 + 30 =
2
40
|
20.
9 + 17 =
2
26
|