Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
13 – 11 =
1
2
|
2.
24 + 10 =
34
2
|
3.
40 + 5 =
2
45
|
4.
23 – 1 =
2
22
|
|
5.
35 – 13 =
2
22
|
6.
16 – 15 =
2
1
|
7.
40 – 29 =
1
11
|
8.
43 – 9 =
34
2
|
|
9.
8 + 35 =
43
2
|
10.
43 – 6 =
2
37
|
11.
37 – 27 =
10
1
|
12.
1 – 0 =
2
1
|
|
13.
47 – 44 =
1
3
|
14.
27 + 16 =
43
2
|
15.
34 + 14 =
2
48
|
16.
34 – 10 =
24
2
|
|
17.
23 + 14 =
37
2
|
18.
30 + 0 =
30
2
|
19.
47 – 28 =
2
19
|
20.
2 – 1 =
1
2
|