Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
44 – 22 =
2
22
|
2.
7 – 5 =
1
2
|
3.
21 – 20 =
1
2
|
4.
8 + 41 =
2
49
|
|
5.
9 + 39 =
48
2
|
6.
19 – 14 =
5
1
|
7.
18 – 8 =
1
10
|
8.
2 – 0 =
2
1
|
|
9.
48 + 0 =
2
48
|
10.
7 – 2 =
5
1
|
11.
43 – 42 =
1
2
|
12.
9 + 4 =
13
1
|
|
13.
30 – 8 =
22
2
|
14.
42 – 26 =
2
16
|
15.
50 – 17 =
33
2
|
16.
39 – 14 =
25
2
|
|
17.
25 – 3 =
22
2
|
18.
25 – 3 =
22
2
|
19.
13 + 17 =
2
30
|
20.
33 – 22 =
11
1
|