Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
47 + 0 =
2
47
|
2.
35 + 6 =
2
41
|
3.
34 + 2 =
2
36
|
4.
24 – 6 =
2
18
|
|
5.
7 + 31 =
2
38
|
6.
49 + 1 =
2
50
|
7.
49 – 13 =
2
36
|
8.
40 + 9 =
2
49
|
|
9.
46 + 1 =
47
2
|
10.
1 + 42 =
43
2
|
11.
25 + 0 =
2
25
|
12.
38 + 10 =
2
48
|
|
13.
21 + 17 =
38
2
|
14.
18 + 17 =
2
35
|
15.
32 + 13 =
45
2
|
16.
39 + 1 =
40
2
|
|
17.
21 + 3 =
2
24
|
18.
33 + 6 =
39
2
|
19.
6 + 3 =
1
9
|
20.
49 + 1 =
2
50
|