Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
15 + 5 =
20
2
|
2.
45 + 2 =
47
2
|
3.
39 – 32 =
7
1
|
4.
16 + 1 =
2
17
|
|
5.
27 + 8 =
35
2
|
6.
23 + 24 =
47
2
|
7.
2 – 1 =
2
1
|
8.
38 + 8 =
46
2
|
|
9.
43 – 42 =
1
2
|
10.
48 – 29 =
2
19
|
11.
17 + 2 =
2
19
|
12.
29 – 11 =
2
18
|
|
13.
39 + 4 =
2
43
|
14.
3 + 25 =
2
28
|
15.
50 – 28 =
22
2
|
16.
43 – 13 =
30
2
|
|
17.
45 – 44 =
1
2
|
18.
13 – 8 =
1
5
|
19.
10 + 8 =
18
2
|
20.
22 + 28 =
50
2
|