Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
49 + 1 =
50
2
|
2.
2 – 2 =
0
2
|
3.
26 – 13 =
13
1
|
4.
48 + 2 =
2
50
|
|
5.
49 + 1 =
50
2
|
6.
18 – 0 =
18
2
|
7.
28 – 11 =
2
17
|
8.
34 + 6 =
40
2
|
|
9.
8 – 2 =
1
6
|
10.
33 + 15 =
2
48
|
11.
3 – 0 =
1
3
|
12.
22 – 0 =
2
22
|
|
13.
48 – 37 =
11
1
|
14.
17 – 15 =
1
2
|
15.
43 – 2 =
2
41
|
16.
20 – 11 =
1
9
|
|
17.
18 – 0 =
18
2
|
18.
3 – 0 =
1
3
|
19.
9 – 4 =
5
1
|
20.
7 + 22 =
2
29
|