Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
9 + 34 =
43
2
|
2.
45 – 4 =
41
2
|
3.
24 + 2 =
26
2
|
4.
46 + 2 =
2
48
|
|
5.
48 – 18 =
30
2
|
6.
49 – 27 =
2
22
|
7.
32 + 6 =
38
2
|
8.
1 – 1 =
0
2
|
|
9.
47 + 0 =
2
47
|
10.
14 – 1 =
1
13
|
11.
8 + 40 =
2
48
|
12.
37 + 3 =
2
40
|
|
13.
9 – 1 =
8
1
|
14.
37 + 1 =
2
38
|
15.
2 – 1 =
2
1
|
16.
28 – 9 =
19
2
|
|
17.
37 + 8 =
2
45
|
18.
21 + 19 =
2
40
|
19.
41 + 0 =
41
2
|
20.
44 – 36 =
8
1
|